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grandymaker [24]

3 years ago

7

Helium decays to form lithium

2 answers:

Simora [160]3 years ago

7 0

While this is true, we don't get what you're asking.

Fantom [35]3 years ago

5 0

Not sure if this was a true or false but ok great job it is true. :)

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PilotLPTM [1.2K]

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What is the volume of 1g of ice in cm3?

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What is the volume of 1g of ice in cm3?

What is the volume of 1g of ice in cm3?

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What is the volume of 1g of ice in cm3?

What is the volume of 1g of ice in cm3?

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Explanation:

3 0

3 years ago

The molar mass of an unknown gas was measured by an effusion experiment. It was found that it took 60 s for the gas to effuse, w

Marizza181 [45]

Answer:

The molar mass of the gas is 44 g/mol

Explanation:

It is possible to solve this problem using Graham's law that says: Rates of effusion are inversely dependent on the square of the mass of each gas. That is:

$\frac{r_1}{r_2} =\frac{\sqrt{M_2} }{\sqrt{M_1} }$

If rate of effusion of nitrogen is Xdistance / 48s and for the unknown gas is X distance / 60s and mass of nitrogen gas is 28g/mol (N₂):

$\frac{X/48s}{X/60s} =\frac{\sqrt{M_2} }{\sqrt{28g/mol} }$

6,61 = √M₂

44g/mol = M₂

<em>The molar mass of the gas is 44 g/mol</em>

<em></em>

I hope it helps!

4 0

3 years ago

Sulfur (S) = 32, and of oxygen (O) = 16.

olganol [36]

Answer:

It should be 115.5 amu but you didnt type that as an answer choice so...

Explanation:

Bruh all you had to do was add oxygen and sulfur and subtract from the total to get your answer :D.

5 0

3 years ago