Q2 of 35 Page 149

Mention the formula, name and physical state of the products of following reactions:

1. CO2(g) + H2O(l)


2. Li2O(s) + H2O(l)


3. H2SO4(aq) + 2KOH(aq)


4. 2HCL(aq) + Ca(s)


5 2HNO3(aq) + CaO(s)


6. 2HCL(aq) + Na2CO3(aq)


7. NaOH(aq) + HCl(aq)


8. BaCl2(aq) + H2SO4(aq)


9. Ca(OH)2(aq) + CO2(g)


10. HNO3(aq) + NH4OH(aq)


11. Na2SO4(aq) + Ba(OH)2(aq)


12. AgNO3(aq) + NaCl(aq)

1. CO2(g) + H2O(l) H2CO3 (aq)


(carbonic acid)


2. Li2O(s) + H2O(l) 2LiOH (aq)


(Lithium hydroxide)


3. H2SO4(aq) + 2KOH(aq) K2SO4 (aq) + 2H20(l)


(potassium (water) Sulphate)


4. 2HCL(aq) + Ca(s) CaCl2(aq) + H2(g)


(calcium chloride) (dihydrogen gas)


5 2HNO3(aq) + CaO(s) Ca(NO3)2 (aq) + H2O(l)


(calcium nitrate) (water)


6. 2HCL(aq) + Na2CO3(aq) 2NaCl(aq) + H2O(l) + CO2(g)


(sodium chloride) (water) (carbon Dioxide)


7. NaOH(aq) + HCl(aq) NaCl(aq) + H2O(l)


(sodium chloride) (water)


8. BaCl2(aq) + H2SO4(aq) BaSO4(s) + HCl(aq)


(barium sulphate) (hydrochloric acid)


9. Ca(OH)2(aq) + CO2(g) CaCO3(s) + H2O(l)


(calcium carbonate) (water)


10. HNO3(aq) + NH4OH(aq) NH4NO3(aq) + H2O(l)


(ammonium nitrate) (water)


11. Na2SO4(aq) + Ba(OH)2(aq) BaSO4 (s) + 2NaOH(aq)


(barium sulphate) (sodium Hydroxide)


12. AgNO3(aq) + NaCl(aq) AgCl(s) + NaNO3(aq)


(silver chloride) (sodium nitrate)


More from this chapter

All 35 →
2

Write names of two weak acids and two weak bases.

 2

Give definitions:

i. Arrhenius acid


ii. Arrhenius base


iii. Bronsted-Lowry acid


iv. Bronsted-Lowry base


v. Concentration of solution


vi. pH of solution


vii. pOH of solution


viii. Strong acid


ix. Weak acid


x. Strong base


xi. Weak base


xii. Neutralisation reaction


xiii. 1M concentration

 3

Answer the following questions:

1. Write two chemical properties of an acid.


2. Write two chemical properties of the base.


3. Write two chemical properties of salt.


4. Deduce pH + pOH = 14


5. Explain the importance of pH in the digestion of food.


6. Write chemical equations for four neutralisation reactions.

 3

Solve the following problems:

1. Calculate pH of an aqueous solution having H3O + concentration equal to 7.9 x 10-11 M. Which nature, acidic basic or neutral will be possessed by this aqueous solution.


2. Calculate pH of 0.00424 M aqueous solution of KOH.


3. How many times concentrated will be the aqueous solution having pH 11.9 as compared to aqueous solution having pH 8?


4. How will you prepare 500ml aqueous solution of 0.2 M H2SO4?


5. How will you prepare 125 ml 0.03 M aqueous solution of KOH.