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jeyben [28]
3 years ago
7

Calculate how many grams of oxygen form when each quantity of reactant completely reacts.. . 2HgO----->2Hg+O2

Chemistry
1 answer:
goblinko [34]3 years ago
3 0
<span>6.96g HgO
hope it helps.
</span>
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Determine the average atomic mass of the following mixture of isotopes of Potassium:
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3 years ago
What volume of carbon dioxide gas can be collected from
alisha [4.7K]

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1.22 L of carbon dioxide gas

Explanation:

The reaction that takes place is:

  • CaCO₃ + HCl → CaCl₂ + CO₂ + H₂O

First we <u>determine which reactant is limiting</u>:

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So HCl is the limiting reactant.

Now we calculate the moles of CO₂ produced:

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7 0
3 years ago
An organic compound is composed of 38.7% C, 9.70% H, 51.6% O. The compound has a molecular formula mass of 62.0g/mol.
Tcecarenko [31]

<span>B)<span>C2H6O<span>2
</span></span></span>
First, convert each percentage to grams: 38.7g, 9.70g, and 51.6g. 
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The empirical formula is CH3O.
Now, compute the formula mass, which is 31. Finally, divide the molecular mass by the formula mass, 62/31 = 2. Multiple the subscripts by 2 to get the molecular formula.
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Explanation:

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Standard temperature and pressure are _____.
Maurinko [17]
The standard temperature is 0c.
the standard pressure is 1atm.
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