3 years ago

Help!

Chemistry

1 answer:

podryga [215]3 years ago

3 0

I’m pretty sure it’s 7.5 (7 and a half hours) sorry if i’m wrong

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larisa86 [58]

Answer:

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2 years ago

Find the energy of a photon of light if the wavelength of the light wave is 6.88 x 10–7m

stepan [7]

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3 years ago

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mars1129 [50]

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$n_{H_2O}=5.94molH_2O$

Explanation:

Hello there!

In this case, according to the given question about stoichiometry, it is possible for us to calculate the required moles of water that will be produced by 12 grams of hydrogen, by using the molar mass of this reactant (2.02 g/mol as it is diatomic) and the 2:2 mole ratio in the chemical equation by solving the following setup:

$n_{H_2O}=12gH_2*\frac{1molH_2}{2.02gH_2} *\frac{2molH_2O}{2molH_2} \\\\n_{H_2O}=5.94molH_2O$

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3 years ago

How many moles of carbon dioxide can be formed by the decomposition of 5.0 moles of aluminium carbonate

Ksenya-84 [330]

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Explanation:

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2 years ago

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