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Zepler [3.9K]
3 years ago
6

40 POINTS COLLEGE CHEMISTRY

Chemistry
1 answer:
alexdok [17]3 years ago
5 0

Answer:

C2= 0.16M

Explanation:

C1= 2M, V1= 20ml, C2= ?, V2= 250ml

Applying dilution formula

C1V1= C2V2

2×20 =C2×250

C2= 0.16M

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Explain why, at room temperature, CO2 is a gas and CS2 is a liquid. You may use diagrams as part of your explanation.
eduard

Explanation:

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3 years ago
True or false: If you rub things together, electrons can move from one atom to another?
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Answer:

true

Explanation:

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3 years ago
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4 Physical characteristics of: a glass of milk, a candle, a piece of aluminum foil, a spoonful of sugar, and toothpaste
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6 0
3 years ago
How many joules of energy are necessary to heat a sample of water with a mass of 46.0 grams from 0.0 to 100.0
Luba_88 [7]

Answer:

Q = 19255.6 j

Explanation:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

Given data:

Mass of water = 46 g

change in temperature = ΔT = 100-0.0 = 100 °C

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Solution:

Specific heat capacity of water = 4.186 j/g. °C

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Q = 46 g×4.186 j/g. °C×100 °C

Q = 19255.6 j

3 0
3 years ago
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