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Zolol [24]
3 years ago
8

A sample of argon has a volume of 5.5 L and the pressure is 0.42 atm. If the final temperature is 30.° C, the final volume is 5.

7 L, and the final pressure is 0.8 atm, what was the initial temperature of the argon?
Chemistry
1 answer:
quester [9]3 years ago
6 0

Answer:

T=15.19°C

Explanation:

Given V1=5.5L P1=0.42atm T1=x

V2=5.7L P2=0.8atm T2=30°C

Assuming ideal gas By the law of gas

PV=nRT

Here n and R are constant throughout the process which means

\frac{PV}{T}=constant

\frac{P1V1}{T1}=\frac{P2V2}{T2}

\frac{5.5*0.42}{x}=\frac{5.7*0.8}{30}

on solving we get x=15.19°C

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3 years ago
4 g of X2O3, an oxide of efement X, contains 2.8 g of X. How many moles of X<br> are there?
ziro4ka [17]

Moles of X are 0.925 moles.

A mole is a totally vital unit of dimension that chemists use.The mole, symbol mol, is the unit of amount of substance inside the worldwide device of gadgets. the amount quantity of the substance is a measure of how many simple entities of a given substance are in an item or sample. The mole is described as containing exactly 6.02214076×10²³ primary entities

mass  of X2O3 = 4 g

so moles = mass/molar mass

molar mass  of X2O3 =  2*X + 48 -

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Learn more about moles here:-brainly.com/question/15356425

#SPJ9

4 0
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