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Chemistry 37 Online
OpenStudy (anonymous):

How many milliliters of calcium, with a density of 1.55 g/mL, are needed to produce 12.4 grams of hydrogen gas in the single replacement reaction below? Be sure to show the work that you did to solve this problem. Unbalanced equation: Ca + HF CaF2 + H2

OpenStudy (alexwee123):

well first of all you should balance out the equation first

OpenStudy (anonymous):

Ca + 2 HF = CaF2 + H2

OpenStudy (alexwee123):

ok now find out the ratio of base to acid

OpenStudy (alexwee123):

which would be 1:2

OpenStudy (anonymous):

Could you tell me the answer?

OpenStudy (anonymous):

what do you mean?

OpenStudy (anonymous):

The answer, so I can be sure of my solution.

OpenStudy (anonymous):

i dont have it its not MC

OpenStudy (anonymous):

H2 = 2. 12.4/2 = 6.2 What's the atomic weight of calcium? AWC * 6.2 * 1/2 * 1/1.55. But I am not really sure of my answer. Never been strong at chemistry :/

OpenStudy (anonymous):

AWC for Atomic Weight Calcium.

OpenStudy (anonymous):

40. 07

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