Calculate the atomic mass of copper

Assignment Help Chemistry
Reference no: EM13170140

copper has two isotopes:cu-63 (abundance= 69.2%, mass= 62.930 amu) and cu-65 (abundance= 30.8% mass= 64.428 amu). calculate the (average) atomic mass of copper.

Reference no: EM13170140

Questions Cloud

Partial explanations for sustainable consumer behavior : Which three schools of academic thinking provide partial explanations for sustainable consumer behavior? Should consumers be expected to take responsibility for the social and environmental impacts of their consumption behaviors, or should that be th..
Calculate the total internal energy change : A gaseous reaction occurs at a constant pressure of 45.0 and releases 61.0 of heat. Before the reaction, the volume of the system was 9.00 . After the reaction, the volume of the system was 3.00 .
Foodmart contracted with masterpiece construction : Foodmart contracted with Masterpiece Construction to renovate the store on Main Street in My Town. Masterpiece, unable to complete the renovation within the 6-month time limit due to an increase in new contracts, subcontracted the job to Build Them t..
What is operating leverage : What is operating leverage and what is a cash budget, how is it calculated, and how might it be used when a firm is negotiating a loan from a bank?
Calculate the atomic mass of copper : copper has two isotopes:cu-63 (abundance= 69.2%, mass= 62.930 amu) and cu-65 (abundance= 30.8% mass= 64.428 amu). calculate the (average) atomic mass of copper.
Why does hydrolysis not take place during the nitration : If p-nitroacetanilide is hydrolysed in acidic solution, why does hydrolysis not take place during the nitration with HNO3 and H2SO4.
About unemployment during the new deal : What did Grover Cleveland believe that the government’s economic policy should be?  Why did Langston Hughes’s white patron withdraw her support of him?  What was true about unemployment during the New Deal?
Which term best describes the mixture : The solubility of NaCl in water at 25 degrees Celsius is 38 g NaCl in 100 grams of water. A mixture was made using 33 g of NaCl and 100 g of waer at 25 degrees Celsius. Which term best describes the mixture?
Appropriate budget requests for project : A product improvement effort is underway to improve the reliability of JAWS. The fabrication and installation of the modification kits required to incorporate this product improvement into fielded JAWS should be funded with:

Reviews

Write a Review

Chemistry Questions & Answers

  Assume gases are at the same pressure and temperature

Assuming all gases are at the same pressure and temperature, how many liters of CO2 are formed from 15.0L of CO.

  State the equilibrium concentrations in a solution of ac5

Determine the formation constant, Kf, of AC5. Kf=? The solubility of AB(s) in a 1.000-M solution of C(aq) is found to be 0.152 M. What is the Ksp of AB? Ksp=?

  What is the activation energy for the reverse reaction

An endothermic chemical reaction with ?E = +41 kJ/mol has an activation energy of +95 kJ/mol. What is the activation energy for the reverse reaction

  What is the theoretical yield (in liters) of nh3

If 2.50 L N2 react with 7.00 L H2, what is the theoretical yield (in liters) of NH3? Assume that the volumes of reactants and products are measured at the same temperature and pressure.

  Depicts the molecule by placing atoms on the grid

Draw the molecule by placing atoms on the grid and connecting them with bonds

  How many grams of acetic acid are in vinegar

if 3.55 mL of vinegar needs 43.0 mL of 0.130 M sodium hydroxide to reach the equilavence point in a titration, how many grams of acetic acid are in a 1.6qt sample of this vinegar?

  What amount of water could be heated

Assume that the kinetic energy of a 1300 kg car moving at 105 km/h could be converted entirely into heat. What amount of water could be heated from 20.°C to 64°C by the car's energy?

  Provide the exact acid-base reaction

Using a flow diagram, show the separation of a mixture containing p-bromoacetanilide, N-cyclopentyl-N-methyl-N-propylamine (N mean the group is attached to the nitrogen of the amine and m-nitrophenol. Specify the organic solvent and aqueous soluti..

  What is the solubility product constant

At a certain temperature, a volume of 100 mL of saturated barium carbonate solution contains 0.00216 g of BaCO3 (MW=197.3 g/mol).

  How many double bonds are present

How many double bonds are present in the "best" resonance structure of the phosphate ion?

  Explain sulfuric acid protonate the nitrogen atom

Why does sulfuric acid protonate the nitrogen atom of the diethylamine group of lidocaine preferentially to that of the amido group

  Calculate the standard enthalpy of formation of octane

Octane (C8H18) undergoes combustion according to the following thermochemical equation: 2C8H18(l) + 25O2(g) ? 16CO2(g) + 18H2O(l) ?H°rxn = -11,020 kJ/mol. Given that ?H°f[CO2(g)] = -393.5 kJ/mol

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