3 years ago

How many grams are in 4.8 moles of Sulfur?

Chemistry

1 answer:

Ainat [17]3 years ago

5 0

153.888 grams are in 4.8 moles of sulfur

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8. If 0.795 moles of ammonia gas occupies 42.5 L at 670 torr, what is the Celsius temperature?

maksim [4K]

Answer: The temperature in degree Celsius is 301.31°C

Explanation:

To calculate the temperature, we use the equation given by ideal gas, which is:

$PV=nRT$

P = pressure of the gas = 670 torr = 0.882 atm (Conversion factor: 1 atm = 760 torr)

V = volume of gas = 42.5 L

n = number of moles of gas = 0.795 mol

R = Gas constant = $0.0821\text{ L atm }mol^{-1}K^{-1}$

T = temperature of gas

Putting values in above equation, we get:

$0.882atm\times 42.5L=0.795mol\times 0.0821\text{ L atm }mol^{-1}K^{-1}\times T\\\\T=574.31K$

Converting the temperature from kelvins to degree Celsius, by using the conversion factor:

$T(K)=T(^oC)+273$

$574.31=T(^oC)+273\\T(^oC)=301.31^oC$

Hence, the temperature in degree Celsius is 301.31°C

6 0

3 years ago

Help i’ll give u points

Bond [772]

Answer:

60ug

Explanation:

If it has experienced two half lives, that means it has been halved twice. in that case, to undo it, just multiply it by two twice. 0.15ug * 2 = 0.30ug. 0.30ug * 2 = 0.60ug. Hope this helps.

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3 years ago

Why is mno2 added to the decomposition of h2o2 reaction

balu736 [363]

The answer is to decrease the activation energy.

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A 9.86 g sample of an aqueous solution of hydroiodic acid contains an unknown amount of the acid. If 27.5 mL of 0.337 M potassiu

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Answer:

88.3% of hydroiodic acid is found

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3 years ago

How many protons are in an ion with 86 electrons and a negative 1 charge

Mamont248 [21]

The -1 charge means that there is one more electron than protons, so there are 85 protons

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