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Amanda [17]
3 years ago
12

Determine the empirical formula of a compound containing 33.8 grams of mercury (Hg), 5.4 grams of sulfur (S), and 10.8 grams of

oxygen (O).
Chemistry
1 answer:
omeli [17]3 years ago
6 0

Answer:

HgSO4

Explanation:

Data obtained from the question include:

Hg = 33.8g

S = 5.4g

O = 10.8g

Divide by their molar mass

Hg = 33.8/201 = 0.168

S = 5.4/32 = 0.169

O = 10.8/16 = 0.675

Divide by the smallest

Hg = 0.168/0.168 = 1

S = 0.169/0.168 = 1

O = 0.675/0.168 = 4

The empirical formula is HgSO4

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Data:
V_{initial} = 590\:mL
T_{initial} = -55.0^0C
converting to Kelvin
TK = TC + 273
TK = -55.0 + 273 → TK = 218.0 → T_{initial} = 218.0\:K
V_{final} = ? (in\:milliliters)
T_{final} = 30.0^0C
TK = TC + 273
TK = 30.0 + 273 → TK = 303.0 → T_{final} = 303.0\:K

By the first Law of Charles and Gay-Lussac, we have: 
\frac{ V_{i} }{ T_{i} } = \frac{ V_{f} }{ T_{f} }

Solving:
\frac{ V_{i} }{ T_{i} } = \frac{ V_{f} }{ T_{f} }
\frac{ 590 }{ 218.0 } = \frac{ V_{f} }{ 303.0 }
Product of extremes equals product of means:
218.0* V_{f} = 590*303.0
218.0 V_{f} = 178770
V_{f} = \frac{178770}{218.0}
\boxed{\boxed{V_{f} \approx 820.04\:mL}}\end{array}}\qquad\quad\checkmark
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3 years ago
Lets say you were doing an experiment on two different chemicals in two different test tubes. One chemical is giving off oxygen
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Answer:

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