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Misha Larkins [42]
2 years ago
11

A) 24 g B) 36 g C) 48 g D) 60 g

Chemistry
1 answer:
Hitman42 [59]2 years ago
5 0

Answer:

I'm not sure if this right because i've only taken one year of Chemistry but the answer I got was

A. 24 g

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At what temp will a gas be at if you allow it to expand from an original 456 mL to 65°C to 3.4 L
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We use the gas law named Charle's law for the calculation of the second temperature. The law states that,
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Substituting the known values,
                                (0.456 L)(65 + 273.15) = (3.4 L)(T₁)
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3 years ago
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A 5 mole sample of liquid acetone is converted to a gas at 75.0°C. If 628 J are required to raise the temperature of the liquid
velikii [3]
The total energy required for this conversion is equivalent to the sum of the energies that are used. There are three steps:

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2) Evaporation of acetone
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3) Heating of acetone vapors
This used 712 J

Adding these quantities,

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7 0
3 years ago
Which is not a compound? water silicon dioxide oxygen gas carbon dioxide gas
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Do scientists worldwide use the same units of measurements?
AfilCa [17]
Scientist typically use the international system of measurements, or the metric system. If you mean English as in England, then yes.<span> The United States' system of measurement is not usually used by scientists.</span>
7 0
3 years ago
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compound 1 contains 15.0g of hydrogen and 120.0g oxygen. What is the percent compound of each element?
allsm [11]

Note down the formula below

\boxed{\sf Mass\%\;of\; element=\dfrac{Mass\:of\:the\: element}{Mass\;of\:the\: compound}\times 100}

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\\ \sf\longmapsto 15+120=135g

Mass % of Hydrogen:-

\\ \sf\longmapsto \dfrac{15}{135}\times 100

\\ \sf\longmapsto \dfrac{1}{9}\times 100

\\ \sf\longmapsto 11.1\%

Mass % of Oxygen:-

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\\ \sf\longmapsto \dfrac{8}{9}\times 100

\\ \sf\longmapsto 88.9\%

8 0
3 years ago
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