Evaluate the weight percent of gold

Assignment Help Chemistry
Reference no: EM13555631

Gold forms a substitutional solid solution with silver. Compute the weight percent of gold that must be added to silver to yield an alloy that contains 6.5 × 1021 Au atoms per cubic centimeter. The densities of pure Au and Ag are 19.32 and 10.49 g/cm3, respectively. Also, the atomic weights for gold and silver are 196.97 and 107.87 g/mol, respectively.

Reference no: EM13555631

Questions Cloud

Estimate the frequency heard by the engineer on trai : Two trains on separate tracks move toward each other. Train 1 has a speed of 127 km/h; train 2 a speed of 80.0 km/h. What is the frequency heard by the engineer on train 1
Effect of transactions on cash flows : Prepare the cash flows from operating Activities section of the statement of cash flows, using the indirect method - Effect of transactions on cash flows
Compute how much work does the engine do : An engine operates between temperatures of 280 K and 700 K at 62.0 % of its maximum efficiency. how much work does the engine do
Set up t-accounts and enter the beginning balances : Journalize the transactions for the current year, 2003, using the accounts listed on the financial statements and other appropriate accounts
Evaluate the weight percent of gold : Gold forms a substitutional solid solution with silver. Compute the weight percent of gold that must be added to silver to yield an alloy that contains 6.5 × 1021 Au atoms per cubic centimeter.
Mans thighbone has a relaxed length : A 91-kg man’s thighbone has a relaxed length of 0.50 m, across-sectional area of 7.0 x 10^–4 m^2, and a Young’s modulus of 1.1 x10^10 N/m^2. By how much does the thighbone compress when the manis standing on both feet?
What is the moral ideal of justice : What is the moral ideal of justice
Calculate how much ice is required : An aluminum container which has a mass of 0.350 kg holds 0.70 kg of water. The water and container are both at 45.0°C. How much ice is required
Describe the thermo-chemical cycle : C2H5OH (liq) +O2(g) ------ CO2 (g) + H2O(g) reaction at 398 kevin and show the thermo-chemical cycle that accounts for each step necessary to calculate ΔH0 at a temperature removed from 298 kelvin.

Reviews

Write a Review

Chemistry Questions & Answers

  What mass of helium gas is needed

What mass of helium gas is needed to pressurize a 112.0 L tank to 262 atm at 25°C?

  Compute the ph of a buffer solution of sodium acetate

Calculate the pH of a buffer solution made by adding .83 g of sodium acetate trihydrate [(NaC2H3O2)-3 H20] to 50 ml of .100 M acetic acid

  Explain what are some advantages of supercritical co2

What are some advantages of supercritical CO2 as a mobile phase for chromatographic separations

  Explain the molar heat of solution of a substance is found

The molar heat of solution of a substance is found to be +35.34 kJ/mol. The addition of 0.20 moles of this substance to 1.5 L water initially at 55 degrees Celsius results in a temperature DECREASE

  How to calculate the size of a hydrogen atom

Calculate the 'size' of a hydrogen atom in its ground state according to this definition. Go on to explore how the 'size' varies as the definition is changed to other precentages, and plot your conclusion.

  Determine the equilibrium concentration of pb2+

A pipette is used to add 32 mL of 0.2 M Pb(NO3)2 to a 261.0 mL solution of 0.3 M NaF. Determine the equilibrium concentration of Pb2+(aq) in the final solution. Ksp(PbF2)=3.6E-8.

  Explain sodium borohydride is a strong base

Sodium borohydride is a strong base as well as a reducing agent. Why would it be better to add the NaBH4 solution to a base-sensitive substrate

  What is the new volume

A quantity of gas under a pressure of 1.78 atm has a volume of 550 cm square. the pressure is increased 2.50atm while the pressure remains constant what is the new volume.

  Define the radius of a tungsten atom

The radius of a tungsten atom is 137 pm. How many tungsten atoms would have to be laid side by side to span a distance of 3.90 mm

  State mechanism for the nitration of bromobenzene

Give a detailed mechanism for the nitration of bromobenzene . As part of your answer explain the regiospecificity

  Describe the hybrid orbitals uses by the central atom and

describe the hybrid orbitals uses by the central atom and the types of bonds formed in

  What is the molecular mass of paba

a solution of 8.32g of paba in 150g of chloroform boiled at 62.62C. what is the molecular mass of paba?

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