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katovenus [111]
3 years ago
10

The density of acetonitrile (CH3CN) is 0.786 g/mL and the density of methanol (CH3OH) is 0.791 g/mL. A solution is made by disso

lving 22.5 mL of CH3OH in 98.7 mL of CH3CN. (a) What is the mole fraction of methanol in the solution? (b) What is the molality of the solution? (c) Assuming that the volumes are additive, what is the molarity of CH3OH in the solution?
Chemistry
1 answer:
Simora [160]3 years ago
8 0

Answer:

IM DA ONE TALKIN

Explanation:

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A 10-gram aluminum cube absorbs 677 joules when its temperature is increased from 50°C to 125°C. What is the specific heat of al
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<h3>Answer:</h3>

0.90J/g°C

<h3>Explanation:</h3>

We are given:

Mass of Aluminium = 10 g

Quantity of heat = 677 Joules

Change in temperature = 125°C - 50°C

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We are required to calculate the specific heat capacity of Aluminium

But, Quantity of heat = Mass × specific heat × Change in temperature

Q = mcΔt

Rearranging the formula;

c = Q ÷ mΔt

  = 677 J ÷ (10 g × 75°C)

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  = 0.90J/g°C

Thus, the specific heat capacity of Aluminium is 0.90J/g°C

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3 years ago
Determine which elements or compounds are missing from the following reaction equation: hydrogen + ________ → water
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Answer:

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Explanation:

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4 0
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The density of copper is 8.92 g/mL. The mass of a piece of copper that has a volume of 10.3 mL is
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Answer:

The answer is

<h2>91.9 g</h2>

Explanation:

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From the question

volume of copper = 10.3 mL

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The mass is

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What is another name for a beta minus (B-) particle?
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