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lilavasa [31]
3 years ago
15

What is the density of a 5 mL sample of 1.95g of Gold

Chemistry
1 answer:
insens350 [35]3 years ago
7 0

Answer:

density=mass/volume

=1.95/5 = 0.39 g(mL)-¹

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First we have to calculate the moles of N_2 and H_2.

\text{ Moles of }N_2=\frac{\text{ Mass of }N_2}{\text{ Molar mass of }N_2}=\frac{100000g}{28g/mole}=3571.43moles

\text{ Moles of }H_2=\frac{\text{ Mass of }H_2}{\text{ Molar mass of }H_2}=\frac{100000g}{2g/mole}=50000moles

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The balanced chemical reaction is,

N_2+3H_2\rightarrow 2NH_3

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As, 1 mole of N_2 react to give 2 mole of NH_3

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Now we have to calculate the mass of NH_3

\text{ Mass of }NH_3=\text{ Moles of }NH_3\times \text{ Molar mass of }NH_3

\text{ Mass of }NH_3=(7142.86moles)\times (17g/mole)=121428.62g=121.429kg

Therefore, the mass of ammonia produced can be, 121.429 kg

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