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2 years ago

Does the mass of an object always equal the sum of its parts?

Chemistry

1 answer:

finlep [7]2 years ago

7 0

Answer:

True

Explanation:

The mass of an object is always equal to the sum of its parts. ... Weight is a measure of the pull of gravity on an object's mass. The mass of an object is the same on Earth as it is on the moon, but the weight of the same object will be less on the moon than on Earth because there is less gravitational force on the moon.

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3 years ago

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Answer:

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3 years ago

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3 years ago

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4 years ago

A chemist must dilute of aqueous aluminum chloride solution until the concentration falls to . He'll do this by adding distilled

marshall27 [118]

Answer:

0.257 L

Explanation:

The values missing in the question has been assumed with common sense so that the concept could be applied

Initial volume of the AICI3 solution $=23.1 \mathrm{mL}$

Initial Molarity of the solution $=833 \mathrm{mM}$

Final molarity of the solution $=75.0 \mathrm{mM}$

Final volume of the solution $=?$

From Law of Dilution, $M_{f} V_{f}=M_{i} V_{i}$

$\Rightarrow V_{f}=\frac{M_{i} V_{i}}{M_{f}}=\frac{833 \mathrm{mM} \times 23.1 \mathrm{mL}}{75.0 \mathrm{mM}}=256.564 \mathrm{mL}=0.256564 \mathrm{L}=0.257 L$

Final Volume of the solution $=0.257$

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3 years ago