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julsineya [31]
3 years ago
9

Answer:

Chemistry
2 answers:
scoray [572]3 years ago
6 0

Answer:

b. 2 g/mL

Explanation:

Density=mass/volume.

so: D=10g/5mL

Density=2g/mL

Leni [432]3 years ago
4 0

Answer:

The correct answer is option b.

Explanation:

To calculate density of a substance, we use the equation:

\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}

We are given:

Mass of an object = 10 g

Volume of an object  = 5 mL

Density of an object = d

Putting values in above equation, we get:

d=\frac{10 g}{5 mL}=2 g/mL

2 g/mL is the density of an object that has a mass of 10 g and a volume of 5 mL.

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Answer:

Q=-76.7kJ

Explanation:

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In this case, for such formation of sulfur hexafluoride, the standard enthalpy of formation is -1220.47 kJ/mol (data extracted from NIST database). Next, we compute the moles in 10.0 grams of sulfur hexafluoride as shown below:

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