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butalik [34]
1 year ago
12

Help a kid in need, easy points.

Chemistry
1 answer:
Ghella [55]1 year ago
6 0

The SI units to measure the mass of a boulder is a ton. The correct option is A.

<h3>What is SI unit?</h3>

The SI unit is the international system of unit. They are made to  accepted in the world. To avoid confusion is the measurement units of different measurement.  

Thus, the correct option is A, ton.

Learn more about SI unit

brainly.com/question/12750330

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What temperature would 3.54 moles of xenon gas need to reach to exert a pressure of 1.57 atm at a volume of 34.6 l
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Answer:

186.9Kelvin

Explanation:

The ideal gas law equation is PV = n R T

where

P   is the pressure of the gas

V   is the volume it occupies

n  is the number of moles of gas present in the sample

R  is the universal gas constant, equal to  0.0821 atm L /mol K

T  is the absolute temperature of the gas

Ensure units of the volume, pressure, and temperature of the gas correspond to R ( the universal gas constant, equal to  0.0821 atm L /mol K )

n = 3.54moles

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PV/nR = T

1.57 x 34.6/3.54 x 0.0821

54.322/0.290634= 186.908620464= T

186.9Kelvin ( approximately to 1 decimal place)

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