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bogdanovich [222]
3 years ago
5

Iron has a density of 7.9 space straight g divided by cm cubed. How much mass is in a 10 space cm cubed sample of iron? Question

10 options: 17.9 g 79 g 1.26 g 0.79 g
Chemistry
1 answer:
dezoksy [38]3 years ago
6 0

Answer:

79 g

Explanation:

Density (d) of iron = 7.9 g/cm³

Volume of the iron (V) = 10 cm³

Mass of the iron (m) = ?

Solution:

Formula will be used

                            d = m/V

As we have to find mass so rearrange the above equation

                              m = dV . . . . . . . . . . . (1)

Put values in above equation 1

                         m = 7.9 g/cm³ x 10cm³

                         m = 79 g

So,

mass of iron = 79 g

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2 years ago
Suppose a piece of silver jewelry contains 5.23×1022 atoms of silver (ag). part a how many dozens of silver atoms are in the pie
IgorC [24]
Answer:
number of dozens = 4.35834 * 10^21 dozens

Explanation:
A dozen contains 12 atoms. To know the number of dozens containing
5.23 * 10^22 atoms, all we have to do is cross multiplication as follows:
1 dozen ...........> 12 atoms
?? dozens ......> <span>5.23 * 10^22 
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7 0
2 years ago
We get 1700 Tonnes of Ammonia every day. How many tonnes of 63% Nitric acid we can get?
jeyben [28]
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Then for the absorption of the nitrogen oxides.
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Then run stoichiometry through these equations.
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Convert the exact number back into tons, and your answer is: <span>419.332775 tons.
</span>
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3 years ago
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<h3>Further explanation   </h3>

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moles :

\tt moles=\dfrac{0.0245}{44}=0.000557=5.57.10^{-4}

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