KChapter 7 HomeworkProblem 7.30Part CCalculate the moles of Cu in 6.4x1021 atoms of Cu.Express your answer using two significant figures.moles of CunCu =SubmitPrevious Answers Request AnswerX Incorrect; Try Again; 2 attempts remainingPart D« Previous

Interpretation- To determine the number of moles of Cu in 6.4 × 1021 atoms of Cu . Concept- To determine the number of moles of Cu in 6.4 × 1021 atoms of Cu, We use the formula that is - Number of moles = Nuber of particle (Cu atoms)Avagdro number where Avogadro number (NA ) = 6.023 × 1023 mol-1 For number of mole in 6.4 × 1021 atoms of Cu - By using formula - Number of moles = Nuber of particle (Cu atoms)Avagdro number So number of mole of Cu-

Answered: Calculate the moles of Cu in 6.4x1021…

Science

Chemistry

Calculate the moles of Cu in 6.4x1021 atoms of Cu. Express your answer using two significant figures. ΑΣφ .... nCu = moles of Cu

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

8. How many grams does 5.02 x 1025 molecules of caffeine weigh?
Calculate the number of oxygen atoms in 8.77 g of Cu3(PO4)2. (use scientific notation with no spaces and no units)
Part a) Mr. Scholl likes to grow tomatoes in his backyard garden. Last year he grew a 6.27 × 10 to the power of -10 moles of tomatoes. How many tomatoes did he grow? Part b)The Waterloo Region has about 617,000 people in it. If Mr. Scholl divides his tomatoes equally among everyone in Waterloo Region, how many tomatoes will you personally receive (assuming you live in the Waterloo Region.)
There are two isotopes of an unknown element, X-19 and X-21. The abundance of X-19 is 10.93%. Now that you have the contribution from the X-19 isotope (2.077) and from the X-21 isotope (18.70), what is the average atomic mass (in amu) of this element using four significant figures?
Moles of water in copper (II) sulfate n hydrate? Mass of copper (II) sulfate n hydrate= 4.738g Mass of anhydrous copper (II) sulfate= 1.671g
Determine the mass in grams of 5.15 × 10²¹ atoms of chromium. (The mass of one mole of chromium is 52.00 g.) with the correct amount of sig figs
Suppose you place a piece of copper on the balance without a weigh boat and the measurement reads 2.589 g. The piece of copper contains... __ x 10? atoms?
Convert 1.29 × 10^24 atoms of carbon to moles of carbon.
A 3.000 g sample of a gaseous compound was found to contain 2.560 g of carbon and 0.440 g of hydrogen. A) What is the simplest formula of the compound (Write C first and then H)? You won't be able to make the numbers a subscript. For instance, for MgCl2 enter MgCl2. B) The molar mass of the compound was found to be 42.08 g/mol. What is the molecular formula of the compound? You won't be able to make the numbers a subscript. For instance, for MgCl2 enter MgCl2.
Given the following average atomic masses (in atomic mass unit, u),Hydrogen: 1.008 u, Oxygen: 15.999 u, and sulfur: 32.06 u.What percentage of sulfuric acid’s (H2SO4) mass is oxygen? Express your answer to 2 decimal places.
Copper (2) fluoride contains 37.42% F by mass. use this percentage to calculate the mass of fluorine (in grams) contained in 51.5 g of copper (2) fluoride
Convert (2.326x10^24) atoms of sulfur to moles of sulfur. Use the abbreviated form of the unit in your answer.