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DaniilM [7]
3 years ago
15

What is the mass of 1 mole of magnesium (Mg)? Express your answer to four significant figures.

Chemistry
2 answers:
Kay [80]3 years ago
6 0

Answer:

24.305 grams

Explanation:

matrenka [14]3 years ago
3 0

Answer:

24.31 g

Explanation:

The mass of 1 mole of any compound is it's molar mass. The molar mass of Magnesium is given as; 24.3050g/mol

Mass = Number of moles * Molar mass

Mass = 1 * 24.3050

Mass = 24.3050g

Upon conversion to four significant figures, it becomes;

Mass = 24.31g

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daser333 [38]

Answer:

true

Explanation:

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When one atom contributes both bonding electrons in a single covalent bond, the bond is called a(n) ____?
andre [41]
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N2O5 decomposes to form NO2 and O2 with first-order kinetics. The initial concentration of N2O5 is 3.0 M and the reaction runs f
kow [346]

Answer : The final concentration of N_2O_5 is, 2.9 M

Explanation :

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

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a - x = concentration left after decay process = ?

Now put all the given values in above equation, we get

3.5=\frac{2.303}{5.89\times 10^{-3}}\log\frac{3.0}{a-x}

a-x=2.9M

Thus, the final concentration of N_2O_5 is, 2.9 M

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Answer:

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