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garri49 [273]
2 years ago
11

How many electrons are in a neutral carbon-14 atom?.

Chemistry
1 answer:
Alla [95]2 years ago
7 0

Answer:

There are six electrons in a carbon-14.

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What is the number of moles in 15.0 g AsH3?
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We are given with the mass of Arsine (AsH_{3}

The mass of arsine is 15g

there is a relation between moles, mass and molar mass of any compound which is

moles=\frac{mass}{molarmass}

The molar mass of Arsine = atomic mass of As + 3X atomic mass of H

the molar mass of Arsine = 74.92 + 3X 1 = 77.92 g/mol

Let us calculate the moles as

moles=\frac{15}{77.92}=0.192mol


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