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Naddik [55]
2 years ago
8

13p 14n what is this element

Chemistry
1 answer:
Tpy6a [65]2 years ago
3 0

Answer:

it is an isotope of Aluminum

Explanation:

Isotopes are the ones with the same number of protons but different number of neutrons.

The normal Aluminum is 13p+ and 13n. (13+13)

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What is the mass, in grams, of a sample of 6.98 × 1024 atoms of magnesium (Mg)?
monitta
N=6.98*10²⁴
Nₐ=6.022*10²³ mol⁻¹

n(Mg)=N/Nₐ

m(Mg)=n(Mg)M(Mg)=M(Mg)N/Nₐ

m(Mg)=24.3g/mol*6.98*10²⁴/(6.022*10²³mol⁻¹)=281.7 g
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<u>Answer:</u> The percent composition by mass of hydrogen in given compound is 6.33 %

<u>Explanation:</u>

We are given:

A chemical compound having chemical formula of NH_4HCO_3

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\%\text{ composition of Hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Mass of compound}}\times 100

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Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

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