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Ad libitum [116K]
3 years ago
10

3. Count the number of hydrogen atoms in 2 molecules of vitamin C (2c6H8O6

Chemistry
1 answer:
Alja [10]3 years ago
3 0
There are 16 hydrogen atoms
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I need help solving this!
zmey [24]

Answer: Moles of hydrogen required are 4.57 moles to make 146.6 grams of methane, CH_{4}.

Explanation:

Given: Mass of methane = 146.6 g

As moles is the mass of a substance divided by its molar mass. So, moles of methane (molar mass = 16.04 g/mol) are calculated as follows.

Moles = \frac{mass}{molar mass}\\= \frac{146.6 g}{16.04 g/mol}\\= 9.14 mol

The given reaction equation is as follows.

C + 2H_{2} \rightarrow CH_{4}

This shows that 2 moles of hydrogen gives 1 mole of methane. Hence, moles of hydrogen required to form 9.14 moles of methane is as follows.

Moles of H_{2} = \frac{9.14}{2}\\= 4.57 mol

Thus, we can conclude that moles of hydrogen required are 4.57 moles to make 146.6 grams of methane, CH_{4}.

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The mass of an object is 500.25g and its volume is 10.05cm³. What is its density?
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1 year ago
If 550 mL of a 3.50 M KCl solution are set aside and alowed to evaporate unti the
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1) list givens and convert if necessary

C₁ = 3.50 mol/L

V₁ = 0.550 L

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2) rearrange formula

C_{1}V_{1}=C_{2}V_{2}\\\\C_{2}=\frac{C_{1}V_{1}}{V_{2}}

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C_{2}=\frac{(3.50\ mol/L)(0.550\ L)}{(0.275\ L)}

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Identify the items in the list below that are examples of matter. Check all that apply idea iron sugar sound glass neon gas
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Iron, sugar, glass, neon

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Anything that you can touch is matter

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