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serious [3.7K]
3 years ago
14

PLS HELPP ...All alkali metals react with water to produce hydrogen gas and the corresponding alkali metal hydroxide

Chemistry
1 answer:
lana66690 [7]3 years ago
8 0

Answer:

A) 3.115 mol

B) 11.60 g h2

Explanation:

From the equation

2 mol Li gives 1 mol H2

Then 6.23 gives??

6.23 /2 = 3.116 mol H2

B) moles of Li =mass! molar mass

= 80.57/ 6.941 = 11.6 mol Li

Then moles of H2 = 11.6 /2 = 5.8 mol H2

Mass of H2 = mol * molar mass

5.8*2 =11.6 g h2

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