If the density of chloroform is 1.5 g/cm³, what is the mass of 50.0 cm³ of chloroform?

The mass of chloroform will be 75 g.

Explanation:-

Density is defined as the mass contained per unit volume.

Given : Mass of chloroform = ?

Volume of chloroform =

Density of chloroform =

Putting in the values we get:

Thus mass of chloroform is 75 g.

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2