CHEM1305 Introductory Chemistry
Chapter 8 Homework Assignment
Question 1One half of a mole of atoms would contain how many atoms?
6.02 × 1023 atoms
3.01 × 1023 atoms
Question 2Calculate the number of particles in 0.200 mol of chlorine molecules, Cl2.
6.02 × 1023 molecules
1.2 × 1023 molecules
Question 3Calculate the number of moles in 3.00 × 1024 formula units of manganese(II) sulfate, MnSO4.
6.02 × 1023 moles
2.00 × 1023 moles
Question 4Determine the molar mass for each of the following:
a) silicon, Si28.09 g/mol
b) ozone, O348.0 g/mol
c) iron(II) acetate, Fe(C2H3O2)2173.93 g/mol
d) nitroglycerin, C3H5O3(NO2)3227.09 g/mol
Question 5How many moles of dinitrogen oxide, N2O are in a 19.3 g sample of N2O?
Question 6What is the mass of 61.5 moles of zinc, Zn?
Question 7Calculate the number of molecules in 5.68 g propane, C3H8.
7.75 × 1022 molecules
2.33 × 1024 molecules
Question 8What is the mass percent of C in oxalic acid, H2C2O4?
Question 9An iron phosphide compound contains 335 grams of iron and 124 grams of phosphorus. What is the empirical formula of this compound?
Question 10Hexamethylene diamine has a molar mass of 115 g/mol and an empirical formula of C3H8N. What is the molecular formula of the compound?
Are you looking for custom essay writing service or even dissertation writing services? Just request for our write my paper service, and we\'ll match you with the best essay writer in your subject! With an exceptional team of professional academic experts in a wide range of subjects, we can guarantee you an unrivaled quality of custom-written papers.
Why Hire Collepals.com writers to do your paper?
Quality- We are experienced and have access to ample research materials.
We write plagiarism Free Content
Confidential- We never share or sell your personal information to third parties.
Support-Chat with us today! We are always waiting to answer all your questions.