Question

Solution

Correct option is HCl is neutralized by Al(OH)3 according to the equation

Al(OH)3   + 3 HCl  → AlCl3 + 3 H2O  = 78 g       = 109.5 g

HCl produced from 2.5 lire of gastric juice 109.5 g HCl is neutralized by Al(OH)3 = 78 g = 5.342 g

= 5342 mg SIMILAR QUESTIONS

Q1

The percentage of an element M is 53 in its oxide of molecular formula M2O3. Its atomic mass is about

Q2

80 g of oxygen contain as many atoms as in

Q3

A black dot used as a full stop at the end of a sentence has a mass of about one attogram. Assuming that the dot is made up of carbon, calculate the approximate number of carbon atoms presents in the dot?

Q4

Insulin contains 3.4% sulphur. Calculate the minimum molecular mass of insulin.

Q5 atoms of iron weigh as much as 1cc of H2 at S.T.P. What is the atomic mass of iron?

Q6

4 g carbon were heated with 8 g of sulphur. How much carbon disulphide (CS2) will be formed when the reaction is completed? What will be its percentage purity?

Q7

How many years would it take to spend Avogadro’s number of rupees at the rate of 10 lakh rupees per second?

Q8

What volume at N.T.P of ammonia gas will be required to be passed into 30mL of N H2SO4 solution to bring down the acid normality to 0.2 N?

Q9

The vapour density of a mixture of NO2 and N2O4 is 38.3 at 26.7oC. Calculate the number of moles of NO2 in 100 g of the mixture.

Q10

The mass of one litre sample of ozonised oxygen at N.T.P was found to be 1.5 g. when 100mL of this mixture at N.T.P were treated with turpentine oil, the volume was reduced to 90mL

Calculated the molecular mass of ozone.