You have 5.5 grams of a substance with a molar mass of 26.98 g/mol. You dissolve this substance in 25 mL of water. What is the molarity? Hint: First, convert grams to moles. 26.98 grams = 1mole.
You have 5.5 grams of a substance with a molar mass of 26.98 g/mol. You dissolve this substance in 25 mL of water. What is the molarity? Hint: First, convert grams to moles. 26.98 grams = 1mole.
Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN:9781305079250
Author:Mark S. Cracolice, Ed Peters
Publisher:Mark S. Cracolice, Ed Peters
Chapter3: Measurement And Chemical Calculations
Section: Chapter Questions
Problem 61E
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Question
You have 5.5 grams of a substance with a molar mass of 26.98 g/mol.
You dissolve this substance in 25 mL of water.
What is the molarity?
Hint: First, convert grams to moles. 26.98 grams = 1mole.
Then, convert milliliters to liters. 1 L = 1000 mL
Finally, plug those numbers in, doing moles divided by liters.
0.20 M
0.0082 M
196 M
8.2 M
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