2 years ago

Answers are either: 10.4g, 5.18g, 37.3g, 26.4g, 20.7g

1 answer:

8 0

Answer:

20.7 g NH3

Explanation:

<u>Convert to moles of N2:</u>

(17.0 g N2) / (28.02 g/mol N2) = 0.607 moles N2

<u>Convert to moles of NH3: </u>

(0.607 moles N2)(2 moles NH3 / 1 mole N2) = 1.213 moles NH3

<u>Convert to grams of NH3:</u>

(1.213 moles NH3)(17.03 g/mol NH3) = 20.66 g NH3

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Lesechka [4]

Answer:

A. 32.06 g/mol

Explanation:

The molar mass units are always g/mol

8 0

3 years ago

adell [148]

The sample with the largest number of oxygen atoms will be calcium perchlorate.

<h3>Number of atoms in a compound</h3>

Since we are not looking at the number of moles, the mass of the compounds has no bearing on the number of atoms of oxygen.

The chemical formula for carbon dioxide is $CO_2$ . Thus, it has 2 atoms of oxygen.
The chemical formula for potassium chlorate is $KClO_3$ . Thus, it has 3 oxygen atoms.
The chemical formula for calcium perchlorate is $Ca(ClO_4)_2$ . Thus, it has 8 atoms of oxygen.
The chemical formula for sodium hydroxide is NaOH. Thus, it has 1 atom of oxygen.