Calcium metal reacts with water to form calcium hydroxide and hydrogen gas. How many grams of hydrogen is form

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Calcium metal reacts with water to form calcium hydroxide and hydrogen gas. How many grams of hydrogen is form

How many grams of hydrogen is formed when 0.50g of calcium are added to water? CA = 2H2o = Ca (OH)2 + H2

2006-12-04 07:41:43 · 3 answers · asked by Cindy F 1 in Science & Mathematics ➔ Chemistry

3 answers

1 mole of Ca into the reaction yealds 1 mole of H2 out

Ca = 40 g/mole
.5 g Ca = .5/40 = 0.125 moles
H2 = 2 g/mole
.125 mole H2 = .125 * 2 = .25 grams.

2006-12-04 07:47:57 · answer #1 · answered by DanE 7 · 0⤊ 5⤋

(0.5 g / MW Ca) * MW H * (2/2) = Hydrogen gas in grams

2006-12-04 07:46:25 · answer #2 · answered by Radagast97 6 · 0⤊ 0⤋

.o25

2014-02-27 12:21:47 · answer #3 · answered by Sonia 1 · 4⤊ 0⤋