Mole Quiz #1 Retake
5 Questions
| Attempts: 135
Please read each question carefully. Make sure you report your answer with the correct number of significant figures and with the correct unit.
How to type your response:
The way you enter your answers is important. If you need to enter a number like 2.31 x 1021 type 2.31x10^21 (no spaces). If a your answer has a unit of grams of carbon,just type grams or g. So, if you put it together 2.31x10^21 grams
Questions and Answers
- 1.
What is avogadro's number with the correct unit?
- 2.
What is the molar mass of K2SO4 ? Make sure your has the correct number of significant figures and the correct unit.
- 3.
If there are 4.82 x 1025 atoms of nitrogen, how many moles of nitrogen are there? Report youranswer with the correct number of significant figures and the correct units.
- 4.
Find the mass (in grams) of 7.24 moles of CH4. Report your answer using the correct number of significant figures and the correct units.
- 5.
If there are 4.28 grams of water in a cup, how many molecules of water are in that cup? Report your answer using the correct number of significant figures and the correct units.
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Current Version
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Mar 17, 2022Quiz Edited by
ProProfs Editorial Team -
Feb 25, 2010Quiz Created by
Mshair
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