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3 years ago

The Molar mass(M.w) in g/mol of 6.3 grams of an ideal gas that placed in 5.0 L tank at ST

Chemistry

1 answer:

BigorU [14]3 years ago

7 0

Answer:

28 g/mol, N2

Explanation:

Given data:

Volume of gas = 5.0 L

Mass of gas = 6.3 g

Pressure = 1 atm

Temperature = 273 K

Molar mass of gas = ?

Solution:

We will calculate the density first.

d = mass/ volume

d = 6.3 g/ 5.0 L

d = 1.26 g/L

Molar mass:

d = PM/RT

M = dRT/P

M = 1.26 g/L× 0.0821 atm.L/mol.K × 273 K/ 1 atm

M = 28 g/mol

Molar mass of N₂ is 28 g/mol thus given gas is N₂.

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the compound contains C, H, and some other element of unknownidentity, so we can’t calculate the empirical formula

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3 years ago

Which of the following are physical characteristics of blood? 1. it is more viscous than water 2. its temperature is about 38ºC

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Explanation:

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Sometimes, the change in color of a substance can also occur due to a chemical change.

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3 years ago