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3 years ago

What is the chemical equations for: Steam tohydrogen using buring magnesium.

Chemistry

1 answer:

Natasha2012 [34]3 years ago

6 0

$\huge\bold\red{Answer:-}$

It’s the same as when magnesium reacts with liquid water, only faster:

Mg + 2H₂O → MgO + H₂.

The difference is that in water, the reaction has a second step, converting MgO to Mg(OH)₂.

<h2>HOPE IT HELPS♥</h2>

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Enter your answer in the provided box. A person's blood alcohol (C2H5OH) level can be determined by titrating a sample of blood

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<u>Answer:</u> The mass percent of alcohol in blood is 0.183 %

<u>Explanation:</u>

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$\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}$

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Volume of solution = 35.46 mL = 0.03546 L (Conversion factor: 1 L = 1000 mL)

Putting values in above equation, we get:

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$16H^+(aq.)+2Cr_2O_7^{2-}(aq.)+C_2H_5OH(aq.)\rightarrow 4Cr^{3+}(aq.)+2CO_2(g)+11H_2O(l)$

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To calculate the number of moles, we use the equation:

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Molar mass of ethanol = 46.07 g/mol

Putting values in above equation, we get:

$1.06\times 10^{-3}mol=\frac{\text{Mass of ethanol}}{46.07g/mol}\\\\\text{Mass of ethanol}=(1.06\times 10^{-3}mol\times 46.07g/mol)=0.0488g$

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$\text{Mass percent of ethanol}=\frac{\text{Mass of ethanol}}{\text{Mass of blood plasma}}\times 100$

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Putting values in above equation, we get:

$\text{Mass percent of ethanol}=\frac{0.0488g}{26.60g}\times 100=0.183\%$

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3 years ago

What is the chemical equations for: Steam tohydrogen using buring magnesium.​

What is the chemical equations for: Steam tohydrogen using buring magnesium.