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timurjin [86]
2 years ago
11

What is the mass of 3.2 L of water in centigrams?

Chemistry
1 answer:
Akimi4 [234]2 years ago
8 0
The mass of 3.2 liters of water in centigrams is 3200
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How many moles of steam are produced when 5.74 moles of octane (C3H18) react?
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Answer:

51.66 mol H2O (steam)

Explanation:

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Dihydrogen monoxide is a(n) ____. A. covalent compound B. molecular formula C. empirical formula D. Ionic compound​
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3 years ago
How many moles of H2 are in a flask with a volume of 2500 mL at a pressure of 30.0 kPa and a temperature of 27oC?
quester [9]

Answer:

0.0300 moles of H₂

Explanation:

The original equation is PV = nRT. We need to change this to show moles (n).

n = \frac{PV}{RT}

It's important to convert your values to match the constant (r) in terms of units.

30.0 kPa = 0.296 atm

2500 mL = 2.50 L

27 °C = 300 K

Now, plug those values in to solve:

n = \frac{(0.296)(2.50)}{(0.0821)(300)}    -  for the sake of keeping the problem clean, I didn't include the units but you should just to make sure everything cancels out :)

Finally, you are left with n = 0.0300 moles of H₂

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