At 50 C, the ion-product constant for H 2 O has the value K w = 5.48
Question:
At 50 °C, the ion-product constant for H2O has the value Kw = 5.48 x 10-14.
(a) What is the pH of pure water at 50 °C?
(b) Based on the change in Kw with temperature, predict whether ΔH is positive, negative, or zero for the autoionization reaction of water:
2H2O(l) ⇌ H3O+(aq) + OH-(aq)
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 77% (9 reviews)
The ionproduct constant for water Kw is defined by the following equa...View the full answer
Answered By
Victor Karia
I have worked as a tutor for over 4 years, during which time I have developed a range of techniques to help my students learn effectively. I am confident in my ability to explain concepts in a way that is easy to understand, and I am patient and happy to answer any questions my students have. I also have a lot of experience helping students with exam preparation and essay writing, and I am confident in my ability to help my students improve their grades.
0.00
0 Reviews
10+ Question Solved
Related Book For
Chemistry The Central Science
ISBN: 978-0134414232
14th Edition
Authors: Theodore Brown, H. LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward, Matthew Stoltzfus
Question Posted:
Students also viewed these Sciences questions
-
At 50C, the ion-product constant for H 2 O has the value K w = 5.48 10 -14 . What is the pH of pure water at 50C?
-
What is the pH of the solution obtained by titrating 1.24 g of sodium hydrogen sulfate, NaHSO4, dissolved in 50.0 mL of water with 0.175 M sodium hydroxide until the equivalence point is reached?...
-
What is the pH of a 0.025 M aqueous solution of sodium propionate, NaC3H5O2? What is the concentration of propionic acid in the solution?
-
1.3 WANEFMAC7 1.3.007. Find the equation of the given linear function. \[ f(x)= \] WANEFMAC7 1.3.015. Find the slope of the given line, if it is defined. (If an answer is undefined, enter UNDEFINED.)...
-
Megan operates a house-cleaning business as a sole proprietorship. She oversees a team of 10 cleaning personnel, markets the business, and provides supplies and equipment. The business has been...
-
Town Center (TC) owns a shopping center in Derby, Kansas. It leased space to Empire Lending for a two-year term (Lease 1). The space could not be sublet without permission of TC. Bayer, a branch...
-
On the American Arbitration Association website, referenced in Exhibit 19.1, can you also find information about mediations? Is there a form that provides for mediation by the AAA? What are the...
-
On October 5, Wang Company buys merchandise on account from Davis Company. The selling price of the goods is $4,800, and the cost to Davis Company is $3,100. On October 8, Wang returns defective...
-
Research can be described as a systematic and organized effort to investigate a specific problem that needs a solution. Below are types of research need to be considered before starting research....
-
The main concern for Dr. Aditya Khare, founder of Tech Talk, is to identify how social media can be used to engage with Tech Talks subscription base: What social media strategy is required? What...
-
(a) If the molar solubility of CaF 2 at 35C i s 1.24 x 10 -3 mol/L, what is K sp at this temperature? (b) It is found that 1.1 x 10 -2 g SrF 2 dissolves per 100 mL of aqueous solution at 25C....
-
The pK b of water is _______. (a) 1 (b) 7 (c) 14 (d) Not defined (e) None of the above
-
What are some sources of groundwater contamination? Why is groundwater pollution such a difficult problem?
-
A penstock supplies water to Pelton turbine with a head of \(80 \mathrm{~m}\). One-third of head is lost in penstock due to friction. The flow rate of water from the nozzle is \(2.5 \mathrm{~m}^{3} /...
-
Calculate the mass of air required to burn per \(\mathrm{kg}\) of coal for chimney height of \(40 \mathrm{~mm}\). Draught produced is \(24 \mathrm{~mm}\) of water. The temperature of flue gas inside...
-
Selina Lo loves her job as the manager of a toy store in San Francisco. She loves the chaos and the excitement of kids as they wander around the store searching for their favorite toys. Teddy bears...
-
Go to your university's library website, and use its catalog-search page to explore a topic that interests you. Evaluate the set of pages resulting from the search, using the extract from the...
-
The Economist magazine tracks the prices of the McDonalds Big Mac hamburger in countries around the world. The following table shows the price of Big Macs in the United States and in five other...
-
Prove that two nonzero complex numbers z1 and z2 have the same moduli if and only if there are complex numbers c1 and c2 such that z1 = c1c2 and z2 = c1c2. and [see Exercise 2(b)] exp(-)exp()-...
-
The nitrogen atoms in N2 participate in multiple bonding, whereas those in hydrazine, N2H4, do not. (a) Draw Lewis structures for both molecules. (b) What is the hybridization of the nitrogen atoms...
-
(a) Calculate the energy of a photon of electromagnetic radiation whose frequency is 6.75 1012s-1. (b) Calculate the energy of a photon of radiation whose wavelength is 322 nm. (c) What wavelength...
-
(a) A red laser pointer emits light with a wavelength of 650 nm. What is the frequency of this light? (b) What is the energy of one of these photons? (c) The laser pointer emits light because...
-
(a) Calculate and compare the energy of a photon of wavelength 3.3μm with that of wavelength 0.154 nm. (b) Use Figure 6.4 to identify the region of the electromagnetic spectrum to which...
-
Discuss the challenges and opportunities of scaling up process intensification concepts from laboratory-scale experiments to industrial-scale applications, addressing issues related to...
-
Suppose the pressure in the esophagus is - 1.95 mm Hg while that in the stomach is + 18.5 mm Hg. To what height, in centimeters, could stomach fluid rise in the esophagus, assuming it has a density...
-
When light of wavelength190nm falls on acesiumsurface, electrons having a maximum kinetic energy of 4.39eV are emitted. Find values for the following. (a) the work function of cesium eV? (b) the...
Study smarter with the SolutionInn App