3 years ago

What is acnsrl spgei

Chemistry

1 answer:

joja [24]3 years ago

4 0

Spring scale
It's a tool used to measure force.

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One mole of H2 S o4 contains off 4.22 into 10 raise to power 24 atoms is it true or false

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Answer:

False. One mole of a certain substance will always contain $6.002 \cdot 10^{23}$ atoms of that substance.

Explanation:

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2 years ago

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What is the density of chlorine gas (MM = 71.0glmol) at 1.50 atm and 25.0C

IrinaVladis [17]

Answer: D=4.35g/L

Explanation:

The formula for density is $D=\frac{M}{V}$ . M is mass in grams and V is volume in liters.

Since we are give pressure and temperature, we can use the ideal gas law to find moles/volume. FInding moles/volume would give us the base for density. All we would have to do is convert moles to grams.

Ideal Gas Law: PV=nRT

$\frac{n}{V} =\frac{P}{RT}$

$\frac{n}{V}=\frac{1.50 atm}{(0.08206Latm/Kmol)(25+274.15K)}$

$\frac{n}{V} =\frac{0.061309mol}{L}$

Now that we have moles, we can use molar mass of chlorine gas to find grams.

$0.061309mol*\frac{71.0g}{mol} =4.3529g$

With our grams, we can find our density.

$D=\frac{4.3529g}{L}$

We need correct significant figures so our density is:

$D=\frac{4.35g}{L}$

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3 years ago

Explain the difference between biotic and abiotic

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Biotic are living organisms and abiotic are non living things such as rocks water soil

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59x<br> 56x<br> 35<br> 35<br> What do they have in common

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Explanation:

They have 5 in common but different x

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Compare la configuración realizada con la que aparece en la tabla periódica y confirma si esta en

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Explanation:

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