6. The electrolysis of an aqueous solution of KBr has the overall reaction: 2H,0 + 2Br...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
6. The electrolysis of an aqueous solution of KBr has the overall reaction: 2H,0 + 2Br (aq) →H;(g) + Br2(1) + 20H-(aq) During the electrolysis, 0.497 mol of electrons pass through the cell. a. How many electrons does this represent? b. How many electrons does this represent? c. Assuming 100% yield, how many liters of H2 and Br2 are produced at 25°C and 0.997 atm? The density of Br2 () is 3.10 g/mL 7. A metallurgist wants to chromium plate his car's hood ornament. The ornament has a surface area of 13.64 in?. He wants the chromium plating to be 0.0040 in thick. a. How many grams of chromium (d = 7.19 g/cm) are required? b. If a current of 9.00 amperes is used, how long will it take to plate the ornament using a solution of CrCl3 as a chromium source? (Assume 100% efficiency.) 6. The electrolysis of an aqueous solution of KBr has the overall reaction: 2H,0 + 2Br (aq) →H;(g) + Br2(1) + 20H-(aq) During the electrolysis, 0.497 mol of electrons pass through the cell. a. How many electrons does this represent? b. How many electrons does this represent? c. Assuming 100% yield, how many liters of H2 and Br2 are produced at 25°C and 0.997 atm? The density of Br2 () is 3.10 g/mL 7. A metallurgist wants to chromium plate his car's hood ornament. The ornament has a surface area of 13.64 in?. He wants the chromium plating to be 0.0040 in thick. a. How many grams of chromium (d = 7.19 g/cm) are required? b. If a current of 9.00 amperes is used, how long will it take to plate the ornament using a solution of CrCl3 as a chromium source? (Assume 100% efficiency.)
Expert Answer:
Answer rating: 100% (QA)
6 7 X Step 1 of 4 a Write the overall cell reaction 2H0 2B1 aq Hg Br 1 2... View the full answer
Posted Date:
Students also viewed these chemistry questions
-
In a study of the properties of an aqueous solution of Th(N03)4 (by A. Apelblat, D. Azoulay, and A. Sahar,]. Chem. Sac. Faraday Trans., I, 1618, (1973, a freezing point depression of 0.0703 K was...
-
Electrolysis of an aqueous solution of sodium chloride produces chlorine, Cl 2 (g). The reaction that occurs at the anode is A constant electric current deposits 152 g Cl 2 in 56.1 min from an...
-
A total of 86,000 gal/day of an aqueous solution of 3,000 ppm of NaCl is to be desalinized to 400 ppm by electrodialysis, with a 40% conversion. The process will be conducted in four stages, with...
-
Lori Corporation issued $4,000,000 in 8.5 percent, five-year bonds on March 1, 2011, at 96. The semiannual interest payment dates are September 1 and March 1. Prepare journal entries for the issue of...
-
Differentiate among sporadic, persistent, and predatory dumping.
-
What are the pros of a creditor-friendly bankruptcy procedure for shareholders?
-
The worker is using the bar to pull two pipes together in order to complete the connection. If he applies a horizontal force F to the handle of the lever, determine the moment of this force about the...
-
2. I surveyed each house on the block to determine how much we are spending on Halloween treats. The distribution below represents the results in dollars. $Spent mid 50-59 54.5 1 40-49 44.5 2 30-39...
-
What Happens When You Dont Deliver on Your Promises Web: www.clearly.ca Facebook: Clearly Canadian If a new product or service seems like the perfect option to solve a problem or capitalize on an...
-
Alina is single, employed and dabbles in real estate. This year her AGI will be $116,000 and will have a $32,000 loss from her rental property that she actively participated in managing. How much in...
-
Going back to the financial institution you have chosen; how would the world be in absence of that institution? What is the relative importance of this Institution?
-
A company operates a global supply chain network to deliver its products to customers around the world. The company has experienced challenges in managing logistics and ensuring timely delivery. As a...
-
Explain why global production and supply chain management decisions are of central importance to many global companies.
-
Identify the hardware, software, and data components of the Mince system that require protection. Make overall recommendations for following specific best practices to monitor and protect the Mince...
-
Your team will begin development of the SafeWalk app. You will be using Android Studio to complete the system. You have four (4) people on your team, and only one person is an expert with Android...
-
1 Book Ask Print Problem 2-7A Preparing and posting journal entries; preparing a trial balance LO3, 4, Elizabeth Wong has strong problem-solving skills and loves to work with people. After becoming a...
-
B made an issue of 150,000 $1 ordinary shares at a premium of 20% the proceeds of which is received by cheque. What is the correct journal to record this? A. Bank Share capital Share premium B. Bank...
-
Many groups have treasury policies that use hedging of net positions. They would look at their group-wide exposure in, e.g. foreign currency and then take forward contracts to cover the position....
-
On 1 April year 1, a deep discount bond was issued by DDB AG. It had a face value of 2.5 million covering a five-year term.The lenders were granted a discount of 5%. The coupon rate was 10% on the...
-
Interest rate swaps can be designated as hedges of underlying borrowings. A swap of floating for fixed rate is a cash flow hedge, but a swap of fixed for floating is a fair value hedge. Why?
Study smarter with the SolutionInn App