Question 1 : Stoichiometric ratio of sodium dihydrogen orthophosphate and sodium hydrogen orthophosphate required for synthesis of <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea7fed1a3d2442ab82937d8"> is
Question 3 :
If $0.01$ mole of solute is present in $500\ ml $ of solution, its molarity is:
Question 4 :
A solution of known normality is diluted to two times. Which of the following changes during dilution?
Question 5 :
The number of moles of solute present in 2.0 litre of 0.5 M NaOH solution is:
Question 6 :
Concentrated sulphuric acid has density of 1.9 g/mL and $99\%$ $H_2SO_4$ by mass. Calculate the molarity of the acid.
Question 7 :
If 250 ml of 0.25 M NaCl solution is diluted with water to a volume of 500 ml, the new concentration of solution is:
Question 8 :
Calculate the value of $100\ x$ if $x$ mL is the volume of water required to make $1\ \text N$ solution from $2$ mL concentration $HNO_3$.<br/>
Question 10 :
$2.5$ litre of $1\ M\ NaOH$ solution mixed with another $3$ litre of $0.5\ M\ NaOH$ solution. Then find out molarity of resultant solution.
Question 11 :
A solution is prepared by dissolving 9.8 g of $H_2SO_4$ in 54 g of water. What is the mole fraction of $H_2SO_4$ ?
Question 12 :
$\displaystyle 2N$ $\displaystyle HCl$ solution will have same molar concentration as a:
Question 13 :
An aqueous solution of phosphoric acid, $H_3PO_4$ being titrated has molarity equal to 0.25 M. Which of the following could be normality of this solution ?
Question 14 :
If 98 grams of $\displaystyle { H }_{ 2 }{ SO }_{ 4 }$ is added in sufficient water to make 500 milliliters of solution, then what is the molarity of a solution?
Question 15 :
The molarity of a 350 ml solution is 0.5 M. Calculate the amount of solute present in it. (molecular mass of solute = 98)
Question 16 :
Assertion: Concentration of any solution is independent from the amount of solution, but it depends on the relative amount of solute and solvent.
Reason: Concentration of any solution has same magnitude in any unit to express concentration.
Question 17 :
Calculate the molarity of each ion in solution after 2.0 litre of 3.0 M $AgNO_3$ is mixed with 3.0 litre of 1.0 M $BaCl_2$.
Question 18 :
1.5 litre of solution of normality N and 2.5 litres of 2M HCl are mixed together. The resultant solution has a normality of 5. The value N is:
Question 19 :
A 5 molar solution of ${ H }_{ 2 }S{ O }_{ 4 }$ is diluted form $1 L$ to $10 L$. What is the normality of the solution?
Question 20 :
What is the mole fraction of the solute in a $1.00$ m aqueous solution?
Question 21 :
$5.5\ mg$ of nitrogen gas dissolves in $180\ g$ of water at $273\ K$ and one atm pressure due to nitrogen gas. The mole fraction of nitrogen in $180\ g$ of water at $5\ atm$ nitrogen pressure is approximately :
Question 22 :
100 ml of 10V $H_2O_2$ solution is heated. The evolved gas is completely reacted with Ca to form CaO. The aqueous solution of Cao is neutralised by 50 ml of $H_2SO_4$ solution. The molarity of $H_2SO4$ is:
Question 23 :
The molarity of solution and weight of sodium bromate necessary to prepare $85.5$ mL of $0.672\: N$ solution when the half-cell reaction is $BrO^{\circleddash}_3 + 6H^{\bigoplus}+ 6e^-\rightarrow Br^{\circleddash} + 3H_2O$, are respectively :
Question 24 : From the following data of $\Delta H$, of the following reactions,<div><br/>$C(s)+\dfrac{1}{2}O_2(g)\rightarrow CO(g)AH=-110$ kJ<br/>$C(s)+H_2O(g)\rightarrow CO(g)+H_2(g)\Delta H=132$ kJ</div><div><br/>What is the mole composition of the mixture of steam and oxygen on being passed over a coke at $1273$ K, keeping the temperature constant?<br/></div>
Question 25 :
In an ideal mixture of liquid A and B the mole fraction of A is 0.25 . If the ratio of $ P^0_A $ to $ P^0_B $ is 7/3. how many repeated distillations would be required as a minimum to obtain a small quantity of distillate which has a mole fraction of A , better than 0.80 ?
Question 27 :
A $5.0$ mL solution of $H_{2}O_{2}$ liberates $0.508$ g of iodine from an acidified $KI$ solution. The strength of $H_{2}O_{2}$ solution in terms of volume strength at $STP$ will be :
Question 28 :
A candle is burnt in a beaker until it extinguishes itself. A sample of gaseous mixture in the beaker contains $6.08\times 10^{20}$ molecules of $N_2, 0.76\times 10^{20}$ molecules of $O_2$, and $0.50\times 10^{20}$ molecules of $CO_2$. The total pressure is 734 mm of Hg. The partial pressure of $O_2$ would be:
Question 29 :
Molarity of $Ca_{3}(PO_{4})_{2}$ if the molarity of the calcium ions in the same solution is $3M$:
Question 30 :
Gaseous ${N}_{2}{O}_{4}$ dissociates into gaseous ${NO}_{2}$ according to the reaction ${N}_{2}{O}_{4}(g)\rightleftharpoons 2{NO}_{2}(g)$. At $300K$ and $1atm$ pressure, the degree of dissociation of ${N}_{2}{O}_{4}$ is $0.2$. If one mole of ${N}_{2}{O}_{4}$ gas is contained in a vessel, then the density of the equilibrium mixture is:
