5 Questions |
By Mshair | Last updated: Jan 10, 2013
| Total Attempts: 130
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
What is avogadro's number with the correct unit?
What is the molar mass of K2SO4 ? Make sure your has the correct number of significant figures and the correct unit.
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.
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.
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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