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3 years ago

What is the volume of 8.50 moles of hydrogen gas?

1 answer:

3 0

Okay!
8.50molH, represents 8.50 moles of Hydrogen gas!

To convert from moles to volume multiply it by the ratio of L/molH
mol of anything in a conversion problem is always 1 unless you are going to an unknown! Try to memorize this, but the number you always put in for the # of liters in a conversion problem is 22.4L (L is a measure of volume)

8.50molH * (22.4 L/ 1 molH)

190.L of Hydrogen Gas.

Hope that helped!

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2 years ago

The metal tantalum becomes superconducting at temperatures below 4.483 K. Calculate the temperature at which tantalum becomes su

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Answer:

The correct answer is "-268.667°C".

Explanation:

Given:

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Now,

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2 years ago

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2 years ago

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Complete combustion of 3.20g of a hydrocarbon produced 9.69g of CO2 and 4.96g of H2O. What is the empirical formula for the hydr

vlabodo [156]

Let empirical formula for hydrocarbon is CxHy

it will undergo combustion as

CxHy + (x + y/4) O2 ---> xCO2 + (y/2 )H2O

Given that mass of CO2 produced = 9.69 g

So moles of CO2 produced = 9.69 / 44 = 0.22 moles

So moles of carbon present = 0.22 moles

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So moles of H present = 2 X 0.28 = 0.56 moles

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3 years ago

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