Chemistry Questions and Answers June 04, 2021

What are isotopes, and how do they differ from the standard atomic form of an element?

Explain the concept of valence electrons and why they are important in chemical reactions.

What is the concept of "Hard Water," and how can it be softened for engineering applications?

Describe the concept of phase diagrams in materials science and how they are used in engineering.

What is corrosion, and how can it be prevented or controlled in engineering materials?

Explain the concept of stoichiometry in chemistry and its significance in engineering applications.

What is the pH scale, and how is it used to measure the acidity or alkalinity of a solution?

A 43.2 mL sample of 0.3870 M selenious acid, HSeO3, is titrated with 0.3870 M potassium hydroxide. What is the pH after 21.6 mL, 43.2 mL, 64.8 mL and 86.4 mL of KOH have been added step mL KOH added PH 1 21.6 2 3 4 43.2 64.8 86.4 The first and second ionization constants for HSeO3 are 2.4103 and 4.810

The correct order of acid strength of the following molecules is :

(1) PhOH PhCOOH PhSO3H CHOH (2) PhSO,H PhCOOH PhOH CHOH (3) CH,OH PhOH PhCOOH PhSOH (4) PHCOOH PhSO3H PhOH CH,OH

For the given circuit. Given V134 Volt, R130 k0, R2140 KQ, R3105 KQ, R4213 kQ. V1 Node a RT R b) Find current I in mA. 1 M R www R3 www R4 www a) Determine the equivalent resistance, RT in k, of the circuit. 1 M c) Use the current divider rule to determine the current in resistor R1 in mA. 0.5M d) Use the current divider rule to determine the

a satellite with orbital elements eccentricity, e 0.12 semimajor axis, a 4, 200 km inclination, i 25 longitude of ascending node, 22 15 argument of periapsis, w 45 and current true anomaly, v 158. equipped with a threeaxis magnetometer with a current magnetic field vector measurement as 1532 hB 5125 6347 nT and an Earth horizon sensor

1 Design a Finite State Machine (FSM) to control the traffic lights at an intersection of a northsouth road with an eastwest road, as shown in the illustration below. Car det 1000 000 00 Car det OOO carew rst cik FSM 6 lights The FSM takes an input carew that indicates that a car is waiting on the eastwest road. The FSM takes a second input, rst,

For R2 KQ, R 10 KQ and C 0.01 F, give the transfer function in Bode form Find v.(t) for v.(t) 10 5 cos (200000t 30) V I R R www

1.1 Refer to seriesparallel ac circuit of Figure 1. The reading on the voltmeter is 175.5 Z23 V at 60 Hz. The emf of the ac supply is 22010 V. 1.1.1 Calculate the reading on the ammeter (A) 1.1.2 Calculate the components of the unknown impedance (Z2). 1.1.3 Calculate the values of your Active, Reactive and Apparent Power. 1.1.4 Calculate the value

The objective of the general purpose of financial reporting is to provide financial information about the reporting entity that is useful to users potential investors and creditors. Explain the relevant characteristics of financial information needed by both users in deciding to provide resources to the entity. Support your answer with relevant

The difference equation of a causal discrete time LTI system is given as y(n) 12y(n1) x(n) a) Find frequency response H(efw) for the system b) Find output response to the input given as X(n) (12)n u(n)

4. Draw the mechanism and label the RDS. HCI y 5. The mechanism for this reaction is two steps. Draw the key intermediate and the two transition states. CI HBr For Br

3. Write a complete SN1 mechanism for the following reaction. CH3CH 0 H3C Br 4. Write a complete SN2 mechanism for the following. Show the transition state as well. Also list a good solvent. OTS CH3 CH3OH NaCN

2. Provide a mechanism for the following transformation. Make sure to account for the formation of this particular diastereomer by paying careful attention to relative stereochemical relationships in all of your intermediates. Hint Bicarbonate is not a strong enough base to deprotonate an alcohol. H OH Br NaHCO3, HO Br H H CO NaBr 3. Draw all

2. Draw the curved arrow mechanism for the reaction between 2methoxyphenoxide and 3chloro1,2propanediol, in the guaifenesin synthesis. Be sure to clearly show the bimolecular transition state.

Illustrate the mechanism for the reaction below. VERY CAREFULLY draw any transition state (TS1) that might be formed. Place the transition state in the box. Recall that a transition state depends upon the mechanism operating. Determine what mechanism is likely operating and so indicate where requested. H3C(CH2) 15CHCH2Br BuOKtBuOH HC(CH)15CHCH KBr

3. Draw the mechanism and label the RDS. Br2 HO OH Br 4. Based on the mechanism you drew for 3. draw the first transition state.,5. Fill in the product(s) and use the appropriate wedgedash drawings if stereoisomers are made. HO HSO4 1. BH3 2. HO, KOH

The following figure plots the US unemployment rate (blue), the US government spending to GDP ratio (red), and the US Federal Funds interest rate (green) between 1980 and 2018. The shaded areas represent the recession dates. Based on the figure, discuss: a) [15 marks] How does the monetary policy react to negative shocks in the economy? Explain

FRED A g Percent, Bil of SBil of 100 8 15 10 Unemployment Rate Government total expendituresGross Domestic Product 100 Federal Funds Effective Rate 1985 Shaded areas indicate U.S. recessions 1990 1995 2000 Sources BLS, BEA Board of Governors 2005 2010 2015 fred.stlouisfed.org,FRED A g Percent, Bil of SBil of 100 8 15 10 Unemployment Rate

Use of MACRS cost recovery when computing taxable income does not require an E P adjustment. a. True b. False

calculate the hydroxide ion concentration of a 0.0750 M NH 3 solution

Describe the preparation of 2.000 L of 0.0500 M AgNO3 (169.87 gmol) from solid. the primarystandardgrade

The square plate shown below has 4 equal sides of 2m length. The mass, m, acts at the centre of the plate (cg) and has a value of 200kg. The angles a and b are 45 degrees. Calculate the magnitude, direction and angle of the resultant force. 1.5kN A cg wmg a b 2kN 1.5kN

A 100.0mL sample of brackish water was treated with ammonia, and the sulfide it contained was titrated with 16.47 mL of 0.02310 M AgNO3. The ana lytical reaction is 2Ag S AgS(s) Calculate the concentration of HS in the water in parts per million, Cppm.

. Describe the preparation of 2.00 L of 0.108 M BaCl from BaCl 2HO (244.3 gmol).

Find the Vo of the clipping circuit below and sketch the output. www 2.2kQ 8 v 8 V Fig.1 V Si

Consider unit quaternion q 0 1 2 2 (a) For the rotation given by q, find all pairs of 0,7 corresponding to its rotation angle 0 and its rotation axis generated by unit vector 7. (b) Find the rotation matrix corresponding to q.,Consider unit quaternion q 0 1 2 2 (a) For the rotation given by q, find all pairs of 0,7 corresponding to its rotation

a) By using Norton Theorem, find the Norton equivalent circuit for the node ab. 10V (15 marks) 1 10 ww 4 A 30 ww 1 40 www.oa 40 5V Ob b) What is the value of resistor R that connected to node ab such that maximum power transfer will occur in R. (5 marks),a) By using Norton Theorem, find the Norton equivalent circuit for the node ab. 10V (15

A jar holds 2.02 L of ideal nitrogen gas (N2 , which is a diatomic gas) at 3.37 C and at pressure 1.45 atm. The atomic mass of nitrogen is 14.0 g/mol. The ideal gas constant is 8.31 J/mol.k, Avogadro's Number is N A = 6.022x10 23 molecules/mol, and 1.00 atm = 101.3 kPa. How many moles of gas are contained in the jar?

A force of P 300 N is applied to the 60kg cart. Determine the reactions at both the wheels at A and both the wheels at B. Also, what is the acceleration of the cart The mass center of the cart is at G. 30 P 0.4 m 0.08 m B 0.3 m 0.2 m 0.3 m

5 kg of air is compressed according to a polytropic process with n1.3 from (1 bar, 300K) to 12 of its initial volume. (note that Q is not zero) 1. solve for the heat transfer and work. 2. solve for the entropy production (sigma) assuming Tb300K 3. Set Q0 and solve for n and the entropy production (sigma),5 kg of air is compressed according to a

Gear A is driving Gear B. Gear A has 15 teeth and Gear B has 35 teeth. Both gears have the same module. If Gear A makes n rotations, where n is equal to the 80. How many rotations does Gear B make

Design FSM state diagram develop Verilog HDL code for a microwave Oven with the following specifications. The operation of the microwave is Once the user presses the start button provided the door is closed, the microwave start cooking the food by switching on the magnetron and initiating the countdown of the timer. Once the timer reaches zero,

Consider the system below, answer the following (a)Determine the system type and find the appropriate static error constant (the one that is finite but nonzero) (b) Find the steady stateerror with respect to the corresponding unit input function. (You dont need to check the stability for this part). R(s) Y(s) K(s1) s(s5) 2s2 s2

What are the key factors that influence crop yields, and how can farmers effectively manage these factors to optimize their agricultural production?What are the key factors that farmers should consider when selecting the most suitable crop varieties for their region, and how do these factors impact overall agricultural productivity and

What are the key factors that influence crop yields, and how can farmers effectively manage these factors to optimize their agricultural production?What are the key factors that farmers should consider when selecting the most suitable crop varieties for their region, and how do these factors impact overall agricultural productivity and

1. Separation by precipitation. What concentration of carbonate must be added to 0,10 M Zn 2+ to precipitate 99,90% of the Zn 2+ ? 2. Common ion effect. Express the solubility of AgIO 3 in 10.0 mM KIO 3 as a fraction of its solubility in pure water.

2. Common ion effect. Express the solubility of AgIO 3 in 10.0 mM KIO 3 as a fraction of its solubility in pure water. The Ksp forAgIO 3 is 3,02 10 8 . 3. Separation by precipitation. What concentration of carbonate must be added to 0,10 M Zn 2+ to precipitate 99,90% of the Zn 2+ ? The Ksp for zinc carbonate is 1.46 10 -10.

A BJT is connected as in Figure 3. (10) (a) Label the polarities of VEB and VCB to provide for normal operation. (2) (b) For switch S OPEN, sketch a graph of Ic versus VCB. (4) (c) For switch S closed and IE 2 mA, repeat part (b). (4) S IE 21 VEB Figure 8 11 VCD Ic

The charge q on the capacitor in a simple RLC circuit is governed by the equation Lq(t) Rq(t) (1C)q(t)E(t), where L is the inductance, R the resistance, C the capacitance, and E the voltage source. Since the resistance of a resistor increases with temperature, lets assume that the resistor is heated so that the resistance at time t is R(t) te3t

Consider a linear timeinvariant system with input x(r) and output y(t). The frequency response of the system H() is shown below, plotted as magnitude and phase vs frequency in rads. Hal 3 Ha) (radians) 0 2 0 00 0 63 2 2 6 b) What is the average power in the input signal x(t) (from part a.) c) What is the average power in the output signal v(6)

What mass (in grams) of Ba(IO3)2 (487 gmol) can be dissolved in 500 mL of water at 25C

Calculate the molar concentration of HNO3 (63.0 gmol) in a solution that has a specific gravity of 1.42 and is 70.5 HNO3 (ww).

You have been provided with the following design to supply conditioned air to Room A and Room B. FAN 30 it 20 ft 30 H 2000 cfm 20 ft 50 ft Room A 20 ft 2000 cfm Room B a. The recommended ACH is 6 for both the rooms. Given the room dimensions below, determine if the above air flow is sufficient to provide the recommended ACH. Comment if the current

Record the data collected in experiment 1 into the table below Ambient air temperature, t Power Input Air Velocity (ms) 1. 2. 0.0 1.0 1.5 Flat 846 834 808 26.1 C 20 Watts Heater temperature, ti (C) Pinned 80.0 60.2 456 Finned 80.0 62.0 48.2 Comment on the correlation between Flat 585 573 547 thtA (C) Pinned 33.9 341 19.5 Finned 53.9 359 221 Plot

Electrons will be ejected from the surface of the metal molybdenum (Mo) by photons of 274 nm or less. What is the minimum energy required to ejected an electron from the Mo surface 7.25 x 109 J 07. 25 x 1028 J 1.82 x 1031 J 4.37 x 105 J

8. Predict the products of the following reactions. i) SOCI ii) AlCl3 a) b) CHCHCHBr 276 d) e) f) g) h) COH i) i) NaCN ii) AlCl3 conc KMnO4A ii) HO Carboxylic Acids and Their Derivatives CH,CO,H LiAlH CHCH, (CH),CuLi CHCHCCI CHCHCCI LIAIHOC(CH3)3 3 i) Mg, Et0 ii) CO iii) HO Br CHOH i) NaCrO7, HSO4 ii) HBr i) CHMgBr ii) HO

The hydraulic cylinder is extending with the velocity and acceleration shown. Determine the angular acceleration of crank AB and link BC at the instant shown.

D VD 2 ms UD ap C 1.5 ms 0.4 m 30 A B 0.3 m 60

A radiator is made with 2mmthick plain carbon steel. It contains water at 60 deg C with a convection heat transfer coefficient of 120 Wm2 K1 The two large faces of the radiator, measuring 1.1 m times 0.6 m, are exposed to air at 18 deg C with a convection heat transfer coefficient of 35 Wm2 K1 (1) Calculate the overall heat transfer rate from the

The structure in the form of a bent cylindrical rod with a diameter of 1.25 in. is subjected to a force F of 12 lbf which acts in the x z plane at 0 45 from z and is buildin at A. a) Determine the internal reactions at the section of interest D E shown. b) Determine the state of stress at point D and show this result as an element. c) Draw the

For the shear panel shown in the figure find the shear flow in each web. Plot the distribution of axial loads along each stiffening member, the loads are P1 25 KN P2 20 kN P3 15 kN,20 Figure 1. Shear panel. P3 20 P 20 P 25

Two spheres with masses m1 1 kg and m2 2 kg impinge directly (motion takes place along a line). If the velocities before the impact are u1 30 ms and u2 20 ms, respectively, and if the coefficient of restitution is e 0.4, what is the velocity of the spheres after the impact

1. The Figure 1 shows the first two joints of an anthropomorphic robot the gripper is on link 2 at 03 and a a 5. At a specified instant, the robot is moving with 8 0,0 ATAN(1),0 2,0 6,0 152,0 32. (a) Determine the angular acceleration 002 (b) Determine the material acceleration am (0). (c) Determine the local acceleration 0902 (01). (d)

You are expected to develop the code in Fortran, C, or Matlab, Python, or any other engineering programming language to calculate and draw the nozzle contour. General Specifications The rocket is to discharge into an atmosphere where the ambient pressure is 101 kPa. Assume the propellant properties are equivalent to air, y 1.40 and R 287 J(kg. K)

A cylindrical cantilever beam is subjected to a force F, as indicated in the accompanying figure. Derive strength and stiffness performance index expressions analogous to Equations CS1.9 and CS1.11 for this beam. The stress imposed on the unfixed end e is a (CS1.12) L. r, and I are, respectively, the length, radius, and moment of inertia of the

The Figure 2 shows a two link planar RR robot using MKS units. The links have negligible mass and inertia, but the joint motors do not. There is a force 10 newtons downward applied to the endeffector. Gravity acts in theyo direction. It is suggested to use the fixed coordinate directions for simplicity and the reduced forms of the planar screw

The nonlinear massspring system is described by the second order differential equation mx k(x x) 0, where m, k and are constants and the displacement x is a function of time t. 4.1. (5 marks) Work out and state the algorithmic equations for applying the symplectic Euler method to solve equation (2). 4.2. (5 marks) Show how your MATLAB function

For the system shown below do the following a) Plot the Bode logmagnitude and phase plots b) Find the range of K for stability from your Bode plots c) Evaluate gain margin, phase margin, gain crossover frequency, g, and phase crossover frequency, wpc, from your Bode plots for K 100 R(s) K (s 2) (s4)(s6) C(s)

The stream function for a twodimensional, nonviscous, incompressible flow field is given by Eq. 5. y (x, y) (ms) x 2y a) Does Eq. 5 satisfy the continuity equation b) If the condition for irrotationality in 2D is given by Eq. 6, is the flow field in Eq. 5 irrotational If yes, what is the velocity potential du x y 0 Eq. 5 Eq. 6

An ideal dual cycle operates with a mass of 0.25 kg. The dual cycle consists of the following internally reversible processes,12 adiabatic compression 2 3a constantvolume heat addition of 2.40E5 Jkg 3a 3b constantpressure heat addition of 4.00E5 Jkg 3b 4 adiabatic expansion 4 1 constantvolume heat removal Properties of states 1 and 2 are given

A mixture of nitrogen, oxygen, and neon gases exerts a total pressure of 893 torr. If the mole fractions of these three gases are 0.41, 0.35, and 0.24 respectively, what are the partial pressure of the three gases

1) The antidepressant fluoxetine sold under the brand name Prozac, can be prepared by a substitution reaction of an alkyl chloride with phenol using a weak base to generate the phenoxide ion. CF, CH CF OH A) Identify the nucleophile in this reaction. B) Identify the electrophile in this reaction. CH CH H Prozac (fluoxetine) C) If the rate of

Show that the timeinvariant linear state equation x(t) Ax (t) Bu(t) y(t) Cx (t) with p m is minimal if and only if is minimal. z(t) (A BC)z (1) Bu(t) y (t) Cz(t)

Given that the keyword for ANOVA is "Difference", what is being compared when using an ANOVA? The DV's. The sub-categories. The IV's. All of the above.

Find the dutch roll approximation for ND and D given U 200 fts N 0.1s Y, 0.8 fts Yg 56 fts Ng 2.6s

Sketch the datum symbols to specify the surface X as datum featureB, surface Y as datum featureC and surface Z as datum featureD(Refer FigQ3) 5 Marks (CO3) 16.4 16.0 20.4 20.0 8 surface x CH surface Y 10.5 surface Z Fig Q3

Flame Transport needs to transport water from Hydaway Lake to Snowflex using one of their tanker trucks. The water from Hydaway Lake needs to be pumped into the tanked truck at a rate of 350 litermin through a 40mmdiameter hose. The total length of the hose connecting the lake to the top of the tanker truck is 10 m and the hose friction factor (f

Draw and dimension the datum target according to following instructions (Refer FigQ4) (i)Use three 15mm diameter area targets to establish datum plane A. (ii) Use two line datum targets to establish datum plane B. (iii) Use one line datum target to establish datum plane C. Fig Q4 10 Marks (CO3)

For the below, determine the equation of motion of the blocks and the bar in function of X1, X2 and 8 using Newtons or LaGranges method. Notice there is a torsional spring at point O. Assume that the system is initally at rest, block m2 slides with no friction and m1 is rotating (not sliding) 2k Ju m1 x1 k m2 ke x2 G M, I

For numbers 1 2, study the Isometric views. Use points, hidden lines construction lines, and object lines to sketch the three common views used to explain the object. The scale is 11 which means each grid line on the isometric view represents a grid line on the orthographic grid. DO NOT ERASE YOUR POINTS AND CONSTRUCTION LINES AND LABEL YOUR

The figure below shows the base of an electric kettle. Suppose a heat flux condition is defined through the serpentine heating element embedded at the bottom of the kettle base. Except for the imprinted heating element face, all other faces of the kettle base are subjected to convective heat transfer with a bulk air temperature of 50 C and a film

A reducing agent M reacts with an oxidizing agent A to give M and A, and the equilibrium constant for the reaction is 1.0, then what is the E value for the oxidationreduction reaction at 25C

Give the classification of diuretics on the basis of their structures and mechanism of actions and describe any two Carbonic Anhydrase Inhibitors.

Mechanical power (Pm) will be (a) 93.03 W (b) 20.93 W (c) 22.5 W (d) Non of the above in Performance of a Positive Displacement Pump test, the pump used (a) Piston Pump (b) Vane Pump (c) Gear Pump (d) None of the above The following results are collected for a positive displacement vane pump. N RPM TN.m P1 bar The Volumetric Swept volume P2 1000

1. An approximate transfer function for the hanging crane shown schematically in the figure below can be obtained as follows mpl U(s) (Impl2) (m mp) mls mpgl(memp) where denotes the distance from the pivot to the mass center of the pendulum. My 1.mp Let the angular position and velocity for the hanging crane be the state elements as a 06.

A bead of mass 0.1kg is bound to a linear track which connects the points (1,2,3) and (1,2,4). The bead moves in response to a force field F (xy2z, x,z). Find the work done by the force field in moving the particle using WD to F . dr dt dt

Consider the horizontal bar, pulley, and mass single dof system shown in the figure. System is excited by y(t) Asin(wt) from its equilibrium position starting at t 0. Assume small oscillations. Treat pulley as a uniform disc with mass, ma and radius r. Use m 1kg, L1m, ma 0.25kg, r 0.1m, m 1kg, k 10N m, k 20N m, c 10Nsm. (a) What is

Question: What are the key factors contributing to the rise of renewable energy adoption globally?

A power station has to supply load as follows: Times(hrs) 0-6 6-12 12-14 14-18 18-24 Load (MW) 30 90 60 100 50 Draw the load curve. Draw the load-duration curve. Give a scheme of suitable generating units to supply the level. Calculate load factor, capacity of the plant and plant capacity factor.

. Consider a system of two noninteracting classical particles which can occupy any of the three energy levels with energy values E 0, e, 2e having degeneracies g(E) 1,2 and 4 respectively. Calculate the mean energy of the system.

For the system shown in the figure a) Determine the natural frequencies and mode shapes b) Obtain the responses (t) and 0(t) for (0) 0 (0) 5 and 91(0)0 0(0) 4 rads 10.4 m, 120.5 m, mi1 kg, m22 kg Q gravity. m1.11 0 j k (out) i m2.12 B

For the frame shown below, consider only the effect of bending (neglect shear). (a) Discuss the static indeterminacy of the system. (b) Find all the support reactions. (c) Find the displacement at node 3 and the rotation at node 2. KI L q 2 1 El uniform throughout 3

The op amp shown in Figure P1, is assumed to be ideal, and the output saturation levels are 10V. Rc is a variable resistor. a. Find an expression for V, in terms of Rg. b. Indicate the resistor(s) that Vo does not depend on, and why Find the value of Vo when i) RG 0 (short circuit), ii) R (open circuit) e. Problem2) The switch in the circuit in

Represent 4 and 2 in 4bit signed 2s complement binary format and compute their binary product. The result is stored in 7bit signed 2s complement binary format. Show all steps in detail. Moreover, report the overflow error if any. (6 marks)

(6.25 x 318.75) What are the solid electrolytes Discuss one anionic and one cationic solid electrolyte with examples. How we can improve the conducting properties solid electrolytes Describe the working of Solid Oxide Fuel Cells (SOFCs) and list their main advantages and disadvantages. Explain bake and shake method by giving suitable example. What

Discuss the role of Quinidine Sulphate and Procainamide Hydrochloride as anti arrhythmic agents.

A 24.89 g piece of zinc is placed into a beaker containing 350 mL of hydrochloric acid. The next day the remaining zinc is removed, dried, weighed, and found to have a mass of 21.62 g. Determine the concentration of zinc chloride in the beaker

Table 3 Data Table for aerofoil surface tappings (m) from multitube manometer. Dist from LE mm 0 9 19 33 61 No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 86 112 162 213 264 315 366 416 467 518 569 620 670 721 772 823 874 924 978 1020 1025 Reading cm 0,9 19,4 23,6 23,6 24,6 25,2 25,5 25,8 26,7 27 27,4 28 28 27,6 26,8 26 24

The pinjointed truss shown has a load W, of 7.5 kN and Z, 15.5 kN applied in the directions shown at point B. Assuming that all truss members are of equal geometric and material properties, determine the magnitude of the horizontal deflection at B (in m) to 5 significant figures with respect to the constants A and E. A 4m D W KN 3m Z KN 3m

An engine indicator has a plunger diameter of 19 mm. The indicator spring attached to this plunger is to be compressed 13 mm when the steam pressure is 70 Ncm2. Assuming the spring index to be 6, design the spring.

Question (CHEMISTRY) 1. A litre of air is heated from 27 oc to 177 oc at constant pressure. Find its volume.

Question 1 At Northern Colorado Regional Airport near Fort Collins, Colorado, elevation 5016 feet above sea level, the observed station pressure is 24.77 in Hg. 1) Adjust this station pressure to a sealevel pressure value estimate, to the nearest hundredth of an inch of Hg. 2) Show your work for the calculation in 1) by either typing the steps of

Transform each of the following into phasor form (a) 28 cos (20t) (b) 32 sin (2t 90) (c) sin (9t 45) (d) 5 cos 10t 8 cos(10t 45).

30 3. Lab 1 Physical and Chemical Changes Name Lab Partners Name Purpose Interpretation of Results Identify by number which experiments resulted in physical change and which experiments resulted in chemical changes. Post Laboratory Questions Date Experiments that were chemical changes Experiments that were physical changes (write the number

Part 1. Calculate the Volume of One Drop of Solution Assume the density of water to be 1.00 gmL. mass of 1 drop (g) 1L Volume of one drop X 1.00 gmL 1000 mL Part 2A. Calculate the Rate (The rate will be expressed as A BrO31At). Step 1 Finding how many moles of thiosulfate you started with In each reaction there is one drop of 0.0010 M Na2S2O3

K Complete the following table regarding the naming of polyatomic ionic compounds cation anion Chemical formula NH NH41 NH NHASDA CO(PO4)2 Al3 Al Ca Mg(OH)2 magnesium hydroxide NICO nickel(II) Carbonate SO4 CIOs PO4 10 NH SO Pb4 CO32 NO AlPO4 Ti(OH)2 (NH4)2SO4 Made from Mg2 OH ions Made from Ni CO3 ions Be(BrO3)2 name Ammonium iodide Ammomum