What mass should be assigned for the molar mass

Assignment Help Chemistry
Reference no: EM13691655

Problem- During an electrolysis experiment, the copper wire at the anode decreased in mass from 2.145g to 2.018g. A current of 120 mA was used for 20.0 minutes and then 150 mA for 18 minutes. Using this data, what mass should be assigned for the molar mass of copper assuming 100% efficiency?

The molar mass that I find is half of the actual answer. Help me to find correct answer please

Reference no: EM13691655

Questions Cloud

Explain the decomposition of nh2oh shows a k value : Problem- The decomposition of NH2OH shows a k value of 0.237x10^-4 L/mol.s at 0C and 2.64x10^-4 L/mol.s at 25C. The activation energy is 65.2 kJ/mol. Calculate A (pre exponential factor).
Implement and demosaic function in matlab : you need to implement and demosaic function in matlab. Load a image in a .png file and process it into a color image. I am required to use 'rggb' with linear interpolation. Can someone help me?
Calculate the energy and constant-volume heat capacity : Problem- Calculate the Energy (in J/mol) and constant-volume heat capacity and constant-pressure heat capacity (in J/mol*K) for the following gas molecules at 298K using the Equipartition Theorem.
Research and submit an encryption algorithm : What kind of encryption could you use that would result in the encrypted text being something other than alphabetic characters or numbers?
What mass should be assigned for the molar mass : A current of 120 mA was used for 20.0 minutes and then 150 mA for 18 minutes. Using this data, what mass should be assigned for the molar mass of copper assuming 100% efficiency
Write a program that ask a user to enter a list of names : Write a program that ask a user to enter a list of names. When you finish, The program will show the total number of characters in all the names.
Confirm the formation of the product using chromic acid : Problem- In the experiment of reduction of acetophenone using borohydride, we were able to confirm the formation of the product using chromic acid as a spot test.
Create a friend class : Create a Friend class that contains a first name, last name, a birthday, and a telephone number. Create a Contacts class that contains an array of Friend as well as the owner's name and cell phone Number.
The general mechanism for crossed-aldol condensation : Problem- What is the GENERAL mechanism for both crossed-aldol condensation and Claisen-Schmidt reaction? With proper curved arrow notations

Reviews

Write a Review

Chemistry Questions & Answers

  Determine the functional form of phi(t)

Determine the functional form of Phi(t) and the frequency of a pendulum bob whose mass is m and is attached to a massess rod of length l. Assume that the bob oscillates in the limit of small oscillations.

  What is the percent yield

When 10.0 g of NH3 reacts, the actual yield of N2 is 8.50 g. What is the percent yield?

  What the new volume will be

Five hundred liters of a gas are cooled from 20°C to 10°C while the pressure remains constant.what the new volume will be?

  Evaluate the density of the polonium metal

Polonium metal crystallizes in a lattice which contains only one Po atom per cubic unit cell. The radius of polonium atom is 1.67 A. Calculate the density of the polonium metal

  What is the molarity of the analyte

If the titrant has a molarity of 0.2000 M and there are 50.00 mL of analyte present, what is the molarity of the analyte?

  Explain is mercury chloride an electrolyte in ethanol

A 9.41g sample of HgCl2 is dissolved in 32.75g ethanol (C2H6O). The boiling point is elevated to 80.58 C. Is mercury (II) chloride an electrolyte in ethanol

  Determine the number of moles of oxygen that react complete

Determine the number of moles of oxygen that react completely with 8.0 moles of C2H6 based on the following balanced equation.

  Explain an emission line from k atoms is found

An emission line from K atoms is found to have two closely spaced components, one at 766.70 nm and the other at 770.11 nm. Account for this observation, and deduce what information you can.

  How many grams of na2so4 will be formed

50.0 mL of 2.00 M H2SO4 react with 75.0 mL of 2.00M NaOH. Identify the limiting and excess reactants. How many grams of Na2SO4 will be formed.

  What is the name of feso4 and mgcl2 type of reaction

FeCl3 and Mg3(PO4) to give FeSO4 and MgCl2 I need to know what are the : Molecular Equation? Ionic Eq? Net Ionic Eq? What is the name of this type of reaction. Which ions are spectator ions

  A gas container with a fixed volume has a pressure of p atm

A gas container with a fixed volume has a pressure of p atm. Gas is then added to the container so that the number of gas particles is the container doubles. What happens inside the container

  How many moles and grams of cacl2.2h2o reacted

A 0.879g sample of a CaCl2.2H2O/K2C2O4.H2O solid salt mixture is dissolved in 150ml of deionized water, previously adjusted to a pH that is basic. The precipitate, after having been filtered and air-dried, has a mass of 0.284g. The limiting reactant ..

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