Question 3 :
The molarity of a solution is 0.2 M when 18 g of glucose is dissolved in 500 ml of water.

Question 4 :
Approximate atomic weight of an element is 26.89 . If its equivalent weight is 8.9 , the exact atomic weight of element would be :- -

Question 5 :
A 1.50 g sample of an ore containing silver was dissolved,and all the $ Ag^{+} $ was converted to 0.125 g $ Ag_{2}S $. What was the percentage of silver in the ore?

Question 6 :
$\displaystyle 2N$ $\displaystyle HCl$ solution will have same molar concentration as a:

Question 7 :
<div>A solution is prepared by dissolving 5.64 g of glucose in 60 g of water.<br/></div>Calculate the molality of the solution.<br/>

Question 8 :
In an auto engine with no pollution controls, about 5% of the fuel $(C_{8}H_{18})$&#160;is unburned. Molar ratio of $CO$ and $(C_{8}H_{18})$, emitted in the exhaust gas is:

Question 9 :
<div>A solution is composed of&#160;&#160;$80.00\ g$ of sodium hydroxide dissolved in $2.0\ L$. Find out the molarity of the solution ?</div>

Question 10 :
$5$ ml of $1N$&#160;HCl, $20$ ml of $\dfrac{N}{2}$ $H_2SO_4$ and $30$ ml of $\dfrac{N}{3}$ $HNO_3$ are mixed together and the volume is made to $1$ L. The normality of the resulting solution is&#160;:

Question 11 :
What is the normality of 0.3 M $ H_3PO_4 $ when it undergoes the reaction?<div><br/><div>$ H_3PO_4 +20H^- \rightarrow HPO^{2-}_3 +2H_2O $</div></div>

Question 12 :
Sulphuric acid reacts with sodium hydroxide as follows&#160;<br/>$H_2SO_4$ + $2NaOH$ $\rightarrow$ $Na_2SO_4$+ $2H_2O $<br/>When 1 L of 0.1 M sulphuric acid solution is allowed to react with 1 L of 0.1 M sodium hydroxide solution, the amount of sodium sulphate formed and its molarity in the solution obtained is ?

Question 13 :
An aqueous solution of concentrated hydrobromic acid contains $48\%$ $HBr$ by mass. If the density of the solution is $1.50$ g/mL, what is its concentration?<br>

Question 14 :
Potassium permanganate acts as an oxidising agent in acidic, alkaline as well as neutral media. Which among the following statements is incorrect?

Question 15 :
What is the mole fraction of the solute in a $1.00$ m aqueous solution?