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Zepler [3.9K]
3 years ago
5

A chemistry student needs 50.0 g of dimethyl sulfoxide for an experiment. By consulting the CRC handbook of chemistry and physic

s, the student discovers that the density of dimethyl sulfoxide is 1.10 g×10^-3. Calculate the volume of dimethyl sulfoxide the student should pour out
Chemistry
1 answer:
Ugo [173]3 years ago
4 0

Answer:

45.45 ml of dimethyl sulfoxide

Explanation:

density of dimethyl sulfoxide is 1.10 g/10⁻³L which is 1.10 g/mL

now we devise the next reasoning:

If           1.10 g of dimethyl sulfoxide have a volume of 1 mL

Then     50 g of dimethyl sulfoxide have a volume of X mL

X = (50 × 1) / 1.10 = 45.45 ml of dimethyl sulfoxide

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sp2606 [1]

Answer:

V = 0.798 L

Explanation:

Hello there!

In this case, for this gas stoichiometry problem, we first need to compute the moles of carbon dioxide via stoichiometry and the molar mass of starting calcium carbonate:

3.56gCaCO_3*\frac{1molCaCO_3}{100gCaCO_3} *\frac{1molCO_2}{1molCaCO_3} =0.0356molCO_2

Next, we use the ideal gas equation for computing the volume, by bearing to mind that the STP conditions stand for a pressure of 1 atm and a temperature of 273.15 K:

PV=nRT\\\\V=\frac{nRT}{P}\\\\V=\frac{0.0356mol*0.08206\frac{atm*L}{mol*K}*273.15K}{1atm} \\\\V=0.798L

Best regards!

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3 years ago
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3 years ago
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AlexFokin [52]

Answer:

The answer to your question is the letter C. three times as much

Explanation:

Data

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Formula

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Potential energy of the first step

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Potential energy of the second step

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-Divide the Pe2 by the Pe1

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What will happen to the chemical equilibrium if MgCl2 is added?
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I think the answer is c.
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