massmoleprobs1 - S olomons Study Notes General Chemistry I...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: S olomons Study Notes General Chemistry I Fall 2011 Solomon Weiskop PhD Practice Problems: Mass & Mole General Chemistry 1 Study Notes & Practice Problems are available to print out by registering at www.solomonlinetutor.com Solomon Weiskop PhD Copyright 2011 1 [#1] What is the molar mass of ethanol C 2 H 6 O ? (a) 46.1 g/mol (b) 46.1 amu (c) 46.1 kg/mol (d) 23.0 g/mol (e) the correct answer differs by more than 1% from the above [#2] Determine the number of molecules of water present in 12.0 g of water. (a) (b) (c) (d) (e) 0.67 [#3] Which one of the following samples contains atoms? (a) 6.0g carbon C (b) 16g sulfur S (c) 3.0g helium He (d) 28g silicon Si (e) 15g phosphorous P [#4] The mass of 0.25 mol of some compound is 8.0g. What is the compound? (a) O 2 (b) N 2 (c) Cl 2 (d) Br 2 (e) H 2 (Note: This problem is written exactly as it appeared on an old exam. There is a misuse of terminology in it. Can you find it?) [#5] Which compound has the smallest molar mass? (a) C 2 H 6 (b) CH 3 Cl (c) CO 2 (d) C 2 H 4 O (e) the smallest molar mass is the same for two or more of these compounds [#6] How many hydrogen atoms are in a 27.0g sample of water (H 2 O) ? (a) 1.50 (b) (c) (d) 2.99 (e) [#7] How many atoms of each type does the compound mercurous acetate Hg 2 (C 2 H 3 O 2 ) 2 contain? (a) 2 mercury 4 carbon 6 hydrogen 4 oxygen (b) 2 mercury 2 carbon 3 hydrogen 2 oxygen (c) 4 mercury 4 carbon 6 hydrogen 4 oxygen (d) 2 mercury 2 carbon 3 hydrogen 4 oxygen (e) 1 mercury 2 carbon 3 hydrogen 2 oxygen 2 [#8] Which sample contains the fewest atoms?...
View Full Document

This note was uploaded on 03/12/2012 for the course CHEMISTRY 131 taught by Professor Lacey during the Fall '11 term at SUNY Stony Brook.

Page1 / 8

massmoleprobs1 - S olomons Study Notes General Chemistry I...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online