3 years ago

How many grams of water can be vaporized by 2.153 kJ of energy?

Chemistry

1 answer:

Alexxandr [17]3 years ago

4 0

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A sample of sugar contains 1.505 × 1023 molecules of sugar. How many moles of sugar are present in the sample?

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3 years ago

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3 years ago

2 NaOH + H2SO4 → 2 H2O + Na2SO4<br> How many grams of water are produced from 203.50 grams of H2S04?

ddd [48]

Answer:

$m_{H_2O}=74.8gH_2O$

Explanation:

Hello there!

In this case, according to the given chemical reaction, it is possible to realize there is a 1:2 mole ratio of sulfuric acid to water; thus, given the mass of the former and its molar mass (98.07 g/mol), it is possible to determine the mass of produced water as shown below:

$m_{H_2O}=203.50gH_2SO_4*\frac{1molH_2SO_4}{98.07gH_2SO_4}*\frac{2molH_2O}{1molH_2SO_4} *\frac{18.02gH_2O}{1molH_2O}\\\\m_{H_2O}=74.8gH_2O$

Regards!

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