Statement 1: Equal weights of $^{14} C O_{2}$ and $N O_{2}$ have the same number of molecules.
Statement 2: $^{14} C O_{2}$ and $N O_{2}$ have the same molecular weight.
Statement 3: Equal volumes of $C O_{2}$ and $N O_{2}$ have the same weight.

TFF

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TTF

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Solution

The correct option is B TTF
The molecular weight of $^{14} C O_{2} = 14 + 16 + 16 = 46$
The molecular weight of $N O_{2} = 14 + 16 + 16 = 46$
Thus, the molecular weights of $^{14} C O_{2}$ and $N O_{2}$ are the same.
Equal weights of $^{14} C O_{2}$ and $N O_{2}$ will have the same number of molecules since they will have the same number of moles.
Equal volumes of $C O_{2}$ and $N O_{2}$ will not have the same weight as they will have different molecular weights.

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Similar questions

Read the given statements carefully.

(i) Equal volumes of gases contain equal number of molecules at the same temperature and pressure.
(ii) 273 K and $1.015 \times 10^{5}$ Pa are considered as standard temperature and pressure.
(iii) Equal volumes of gases contain unequal number of molecules at the same temperature and pressure.
(iv) At STP, one mole of any gas will have a volume of 22.4 L.

Which of the following statements are correct?

Choose the correct statements from the following:

Statement 1: All the parallelograms having the same base and lying between the same parallels have equal areas.

Statement 2: All the parallelograms having the same base and lying between the same parallels have same perimeters.

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112.0

mL of

{N O}_{2}

at STP was liquefied, the density of the liquid being

1.15

g {m L}^{- 1}

. Calculate the volume and the number of molecules in the liquid

{N O}_{2}

(Atomic weight of

N = 14

amu)

Q. Statement 1: At the same temperature and pressure, 1 L of hydrogen gas and 1 L of neon gas have the same mass.
Statement 2: Equal volumes of ideal gases at the same temperature and pressure contain the same number of moles.

Statement 1: Isobars have same chemical and physical properties.
Statement 2: Isobars are the atoms with equal number of nucleons.

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Statement 1: Equal weights of 14CO2 and NO2 have the same number of molecules. Statement 2: 14CO2 and NO2 have the same molecular weight. Statement 3: Equal volumes of CO2 and NO2 have the same weight.

Statement 1: Equal weights of $^{14} C O_{2}$ and $N O_{2}$ have the same number of molecules.
Statement 2: $^{14} C O_{2}$ and $N O_{2}$ have the same molecular weight.
Statement 3: Equal volumes of $C O_{2}$ and $N O_{2}$ have the same weight.