1 year ago

6Na(s) + N2(g) --> 2Na3N(s)

Chemistry

1 answer:

Ksivusya [100]1 year ago

7 0

Answer:

80.0 g Na and 20.0 g N2.

Explanation:

This means the limiting reactant determines the maximum mass of the product formed.

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A piece of copper has a mass of 660 g. How many atoms does the sample contain?

son4ous [18]

The conversions that will be used are:

1 mole of copper / 63.5 grams of copper
6.02 x 10²³ atoms of copper / 1 mole of copper

Multiplying the given mass by these conversions,

660 g * (1 mol Cu / 63.5 g Cu) * (6.02 x 10²³ Cu atoms / 1 mole Cu)

The sample contains 6.25 x 10²⁴ atoms of copper

4 0

3 years ago

Find the density.... Mass is 138g and Volume is 100 mL

solniwko [45]

Answer:

1380 kilogram/cubic meter

$p=\frac{m}{v}$