Problem: How many grams of CaCl2 are needed to make 495.3 g of a solution that is 30.5% (m/m) calcium chloride in water? Note that mass in not technically the same thing as weight, but % (m/m) has the same meaning as % (w|w). How many grams of water are needed to make this solution?

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How many grams of CaCl2 are needed to make 495.3 g of a solution that is 30.5% (m/m) calcium chloride in water? Note that mass in not technically the same thing as weight, but % (m/m) has the same meaning as % (w|w). 

How many grams of water are needed to make this solution?

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Our tutors have indicated that to solve this problem you will need to apply the Henderson Hasselbalch Equation concept. If you need more Henderson Hasselbalch Equation practice, you can also practice Henderson Hasselbalch Equation practice problems.