How many molecules are in 165 grams of carbon dioxide?

Answer 1

pv=nrt. The volume, in litres is calculable by this formula: v=nrt/p, where v is in litres, n is your (1.5x10^25 molecules)/(Avrogadro's 6.022×1023 mol–1), r is a constant with a value of 8.31, t is temperature in Kelvin and p is pressure in Pascals.

Answer 2

Molecular molar mass is the sum of the atomic weights in grams of each element times its subscript.

Calculate molecular molar mass of carbon dioxide.

(1 C x 12.0107g/mol C) + (2 O x 15.9994g/mol O) = 44.095g/mole CO2

Convert mass CO2 to moles CO2.

165g CO2 x (1mol CO2/44.095g CO2) = 3.74moles CO2

1 mole of molecules = 6.022 x 1023 molecules

Convert moles CO2 to molecules CO2.

3.74 moles CO2 x (6.022 x 1023 molecules CO2/1mol CO2) = 2.25 x 1024 molecules CO2

Answer 3

A lot!!

1.5 X 1025 molecules CO2 (1 mole molecules CO2/6.022 X 1023)(44.01 grams/1 mole CO2)

= 1096 grams of carbon dioxide

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Answer 4

1.75 X 6.022 X 1023 [Avogadro's number] = 1.05 X 1024 molecules, to the justified number of significant digits.

Answer 5

1096.23g