Question

how many molecules are present in 12 L of liquid (CCl4 ? the density of the liquid is 1.59gm cm^-3​

Answer 1

Answer:

125.53 moles

Explanation:

Given the density and the volume of CCl4 we can get the mass of the compound.

1 liter = 1000 cm³

12 Liters = 12 × 1000 = 12000 cm³

Density = 1.59 g/cm³

Volume = 12000 cm³

Mass = volume × density

= 12000 × 1.59 = 19080 grams

Moles = mass/molar mass

We need to get the molar mass of CCL4.

= 12 + 35 × 4 = 152 grams/ mole

Moles = 19080/152 = 125.53 moles

Answer 2

Answer  0.744*10^26

Explanation: as no. of molecules=no. of moles *6.02*10^23