Explain chromium metal from a solution of cr3+

Assignment Help Chemistry
Reference no: EM13523885

A) How many minutes will it take to plate out 2.19 g of chromium metal from a solution of Cr3+ using a current of 35.2 amps in an electrolyte cell

B) How many grams of Ca metal are produced by the electrolysis of molten CaBr2 using a current of 30.0 amp for 10.0 hours

C) Strontium-90 is a byproduct in nuclear reactors fueled by the radioisotope uranium-235. The half-life of strontium-90 is 28.8 yr. What percentage of a strontium-90 sample remains after 75.0 yr?

Reference no: EM13523885

Questions Cloud

Explain what volume will it occupy at the same temperature : A sample of gas occupies 1.40*10^3 ml at 25 degrees C and 760 mmHg. What volume will it occupy at the same temperature and 380 mmHg
Find how high is the cliff if the speed of sound is given : You are climbing in the High Sierra where you suddenly find yourself at the edge of a fog-shrouded cliff, how high is the cliff if the speed of sound is 330 m/s
Explain what is the final volume of nitrogen : A sample of nitrogengas has a volume of 32.4 L at 20 degrees celcius. The gas is heated to 220 degrees celcius at a constant pressure. What is the final volume of nitrogen
Find the acceleration of this car when it is speeding up : According to recent test data, an automobile travels 0.250 mi in 19.9 s, starting from rest. The same car, when braking from 60.0 mi/h on dry pavement, stops in 146 ft. Find the acceleration of this car when it is speeding up
Explain chromium metal from a solution of cr3+ : How many minutes will it take to plate out 2.19 g of chromium metal from a solution of Cr3+ using a current of 35.2 amps in an electrolyte cell
Calculate how far will you walk : While following a treasure map, you start at an old oak tree. You first walk 825m directly south, then turn and walk 1.25 km at 30.0 west of north, how far will you walk
Explain calcium hydrogen phosphate : Calcium hydrogen phosphate is a component of plant fertilizers (a source of phosphate). It is a relatively insoluble hydrated ionic compound, CaHPO4·2H2O, with a Ksp of 2.7×10-7 at 25°C
Calculate the selling price for each bond issued : 1). 830 bonds, 1000 face value, 8% stated rate, 10 year semi annual interest payment. Assuming the market rate of interest is 10% calculate the selling price for each bond issued. Answer to nearest dollar.
Find how many times higher will it go than it would on earth : The acceleration due to gravity on the Moon is about one-sixth what it is on Earth. how many times higher will it go than it would on Earth

Reviews

Write a Review

Chemistry Questions & Answers

  How does the technique error affect the report percent

how does the technique error affect the report percent water in the hydrated salt? Explain lab 5 percent water in a hydrated salt.

  Propose a plausible mechanism

Draw the line and wedge structures of the products obtained on addition of iodine azide to both cis and trans-2-butenes. Assign ‘R' or ‘S' to the asymmetric centers in your product.

  Explain calories are consumed once you polish off a handful

If each Halloween snack-sized candy bar is 15 g, how many Calories are consumed once you polish off a handful (6 candy bars) of Trick-or-Treating loot? (1 Calorie = 1 kcal)

  Compute the volume of household bleach

Assuming that the density of bleach is the same as water, calculate the volume of household bleach that should be diluted with water to make 500.0 mL of a pH = 9.80 solution.

  Calculate the vapor pressure of pure ethanol

A solution of 53.6 g of glycerin in 133.7g of ethanol has a vapor pressure of 113 torr at 313K. Calculate the vapor pressure of pure ethanol assuming that glycerin is a non-volatile, non electrolyte solute in ethanol.

  Define a molecular equation for the precipitation reaction

Write a molecular equation for the precipitation reaction (if any) that occurs when the following solution are mixed. How do you convert these over and please show steps.

  Determine the mass of citric acid produced

C12H22O11(aq) + 3 O2(g) 2 H3C6H5O7(aq) + 3 H2O(l) Determine the mass of citric acid produced when 4.60 mol C12H22O11 is used.

  Define the concentration of the hydronium ion

Calculate the pH of a solution in which the concentration of the hydronium ion is 2.0 x 10^-4 M.

  The carbon dioxide is removed from the atmosphere of space

Carbon dioxide is removed from the atmosphere of space capsules by reaction with a solid metal hydroxide. Theproducts are water and the metal carbonate

  Calculate your percent yield

Suppose that you obtain 1.0 g of salicylic acid from the hydrolysis of 1.3 mL of methyl salicylate. Calculate your percent yield.

  State all of the statements that are true for so2

Check all of the statements that are true for SO2. The domain geometry is trigonal planar. The molecular geometry is bent. The bond angle is 90 degrees

  Explain the catalyst to the active site of the reaction

What is the reason for using a phase transfer catalyst? a)It is used to transfer the catalyst to the active site of the reaction b)It serves as a proton transfer agent which moves protons from a base to an acid

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd