Question: please help with these questions 10) A student obtains the following densities, in g/cm3, for six different pieces composed of the same material at 20.0C

please help with these questions

10) A student obtains the following densities, in g/cm3, for six different pieces composed of the same material at 20.0C : 2.342.382.452.562.352.49 a) What is the average density? b) What is the range? c) What is the error of the mean? d) What is the standard deviation? 11) An object has a weight of 1.45g. It has a volume of 0.188cm3. Calculate the density of the item in g/cm3 and in kg/m3. 12) The density of copper is 8.95g/cm3 and the density of zinc is 7.14g/cm3. A sample of a CuZn alloy is 80.5%Cu and 19.5%Zn. What is the density of the alloy? 13) Using the average weight of your pennies, the density of Zn and Cu given in the above question and the fact that the volume of a new penny is 0.340cm3, determine the %Zn and %Cu in your penny

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Chemistry Questions!

The beam will fail when the maximum shear force is Vmax or the maximum bending moment is Mmax. Determine the magnitude M0 of the largest couple moments it will support. Units Used: kN = 103 N Given:...

I need help solving my accounting project. i did 4-7 workbook which i have attached below. but 7-10 are incorrect. could someone help me correct from 7-10 quickly please. MI5965 I SEE THE LIGHT...

I really need help with the questions on sheets 3,4,5, and 6. I've attached the project below for the problems. Thank you so much! CS1207 I SEE THE LIGHT www.cybertext.com, The Book List, Building...

Hi, I need help in filling the yellow shaded regions in Tab 3 and Tab 4. I attempted tab 3 but the answers don't add up. I See The Light Projected Income Statement For the Period Ending December 31,...

Hello, I am struggling with this project and my teacher is not helping me at all to work through this project. Can I have a tutor give me a step by step solutions for the whole project so I can...

Please attemp the question I have attached and I have guideline for the answers.For question 3,difference between tax evasion and avoiddance can be found in seminar 2 slides.Tax avoidance mean the...

Can you help me complete tabs 8 till 18 please You can input the formulas on the cells that way I know how you got the results YZ7742 I SEE THE LIGHT www.cybertext.com, The Book List, Building Blocks...

Joe's Tax Service prepares tax returns for low-to middle-income taxpayers. Its service operates January 2 through April 15 at a counter in a local grocery store. All jobs are classified into one of...

Wright Associates is a recently formed law partnership. Claire Haberman, the managing partner of Wright Associates, has just finished a tense phone call with Martin Jabar, president of Jabar...

Item 7 Part 7 of 7 eBook Check my workCheck My Work button is now disabled 1 Item 7 Required information Skip to question [ The following information applies to the questions displayed below. ] - 0 :...

Which of the following requires credentials to gain access for all cloud - based resources? Access management model Zero - trust model Anti - trust model Dia model

1. In the Solow model, how does the rate of population growth affect the steady-state level of income? How does it affect the steady-state rate of growth?

2. The economy of Macro Island is described by the following data: Labors share of income is one-third. Output grows by 8 percent per year. The capital stock grows by 9 percent per year. The labor...

1. In the steady state of the Solow model with technological progress, which of the following variables is not constant? a. capital per effective worker b. the capitaloutput ratio c. the real rental...