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Korolek [52]
3 years ago
9

The rms speed of the molecules of a gas at 145∘C is 187 m/s. Calculate the mass m of a single molecule in the gas.

Chemistry
1 answer:
kupik [55]3 years ago
8 0

Answer:

hello

may name is Beijamim

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Answer:

mass = 100 g

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T2 = 100 °C

C = 1 cal/g°C

Q = mC(T2 -T1)

Q = 100(1)(100 - 0)

Q = 100(100)

Q = 10000 cal

Explanation:

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How many grams of HNO3 are produced when 59.0 g of NO2 completely reacts?
Anettt [7]

Answer:

53.7 grams of HNO3 will be produced

Explanation:

Step 1: Data given

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Step 2: The balanced equation

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Step 3: Calculate moles NO2

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Moles NO2 = 1.28 moles

Step 4: Calculate moles HNO3

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For 1.28 moles NO2 we'll have 2/3 * 1.28 =0.853 moles HNO3

Step 7: Calculate mass HNO3

Mass HNO3 = 0.853 moles * 63.01 g/mol

Mass HNO3 = 53.7 grams

53.7 grams of HNO3 will be produced

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