2 years ago

This is the correct category, right?

Chemistry

1 answer:

Soloha48 [4]2 years ago

5 0

Answer:

32.84002

Explanation:

average atomic mass= F1A1 + F2A2 + F3A3 so that means 60/100*34.456+23/100*37.457+9/100*39.459

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Does anyone know this? help please

Sav [38]

Explanation:

The substance that is in excess that doesn't get used up as a reactant is called limiting reactant.

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3 years ago

A chemical formula includes the symbols of the elements in the compound and subscripts that indicate

kramer

The subscripts indicate the number of atoms of the element immediately before it.

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2 years ago

Three isotopes of argon occur in nature – 36 18Ar, 38 18Ar, 40 18Ar. Calculate the average atomic mass of argon to two decimal p

likoan [24]

Answer: 3) 39.96 amu

Explanation:

Mass of isotope Ar- 36 = 35.97 amu

% abundance of isotope Ar- 36= 0.337% = $\frac{0.337}{100}=3.37\times 10^{-3}$

Mass of isotope Ar- 38 = 37.96 amu

% abundance of isotope 2 = 0.063 % = $\frac{0.063}{100}=6.3\times 10^{-4}$

Mass of isotope Ar- 40 = 39.96 amu

% abundance of isotope 2 = 99.600 % = $\frac{99.600}{100}=0.996$

Formula used for average atomic mass of an element :

$\text{ Average atomic mass of an element}=\sum(\text{atomic mass of an isotopes}\times {{\text { fractional abundance}})$

$A=\sum[(35.97\times 3.37\times 10^{-3})+(37.96\times 6.3\times 10^{-4})+(39.96\times 0.996)]$

$A=39.96amu$

Therefore, the average atomic mass of argon is 39.96 amu

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3 years ago

The solute will dissolve quicker if the solute is more?

Vitek1552 [10]

Answer:

I think D. settled :)

Explanation:

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3 years ago

Read 2 more answers

How many sulfur dioxide<br> molecules are in 2.8 moles of<br> sulfur dioxide?<br> ?]<br> [?]x10?

marshall27 [118]

There are 1,69*10^2^4 molecules. Hope this helps. This was a hard question so if im right can u give brainliest?

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2 years ago