What is the molarity and molality of a 13 solution
Asked by admin @ in Chemistry viewed by 296 People
calculate the molarity and molality of 13% solution by weight of sulphuric acid (density is equal to 1.020 gm)
Answered by admin @
Answer:
M=~10.20M, m=1.524m
Explanation:
Here,
weight of sulphuric acid=13g(13% out of 100g solution)
Molecular weight=Mw=98
volume=?
density= mass/volume
volume=mass/density
v=13/1.020
v=12.74ml~13
Now,
Molarity(M)= weight of solute×1000
Mw × V(ml)
=13×1000/98×13
=1000/98
=~10.20M
Now,
weight of solute=13g.
We know that,
weight of solution=weight of solute+weight of solvent.
100=13+weight of solvent.
100-13=weight of solvent
87g=weight of solvent.
Now, we know that,
Molality(m) = weight of solute ×1000
Mw × weight of solvent(in g)
= 13×1000/98×87
=13000/98×87
=13000/8526
=1.524m
Thank you.
Similar Questions
Molarity and molality of a solution of a liquid
Asked by admin @ in Chemistry viewed by 303 persons
Molarity and molality of a solution of a liquid (mol. wt 50) in aqueous solution is 8and 10 respectively. what is the density of the solution
Why molality is preferred over molarity of a solution
Asked by admin @ in Chemistry viewed by 275 persons
Why molality is preferred over molarity in expressing the concentration of a solution?
Which is a solution to (x − 2)(x + 10) = 13? x = 3 x = 8 x = 10 x = 11
Asked by maham237 @ in Mathematics viewed by 390 persons
Which is a solution to (x − 2)(x + 10) = 13?
x = 3
x = 8
x = 10
x = 11
What volume of a 0.540 m naoh solution contains 15.5 g of naoh?
Asked by maham237 @ in Chemistry viewed by 327 persons
What is the concentration of k+ ions in a 0.025 m k2co3 solution assuming complete dissociation?
Asked by maham237 @ in Chemistry viewed by 410 persons
What are the solutions of the equation x4 – 5x2 – 14 = 0? use factoring to solve.
Asked by maham237 @ in Mathematics viewed by 414 persons
A solution of benzoic acid (c6h5cooh) that is 0.20 m has a ph of 2.45. what is ka for benzoic acid?
Asked by maham237 @ in Chemistry viewed by 349 persons
Solve x2 – 8x = 3 by completing the square. which is the solution set of the equation?
Asked by maham237 @ in Mathematics viewed by 363 persons
Which system of linear inequalities has the point (3, –2) in its solution set
Asked by maham237 @ in Mathematics viewed by 339 persons
Which system of linear inequalities has the point (3, –2) in its solution set?
Solve x2 = 12x – 15 by completing the square. which is the solution set of the equation?
Asked by wiki @ in Mathematics viewed by 424 persons
What is the concentration of k+ ions in a 0.045 m k2co3 solution assuming complete dissociation?
Asked by wiki @ in Chemistry viewed by 317 persons
What is the concentration of k+ ions in a 0.045 m k2co3 solution assuming complete dissociation?express the concentration in molarity?
Which system of linear inequalities has the point (3, –2) in its solution set?
Asked by wiki @ in Mathematics viewed by 705 persons
A.y < -3
y ≤ 2/3x - 4
B.y > -3
y ≥ 2/3x - 4
C.y < -3
y ≥ 2/3x - 4
D.y > -2
y ≤ 2/3x - 4
What are the solutions of the equation x4 + 95x2 – 500 = 0? use factoring to solve.
Asked by wiki @ in Mathematics viewed by 451 persons
What are the solutions of the equation x4 + 95x2 – 500 = 0? Use factoring to solve.
x=+- sqrt 5 and x = ±10
x=+- sqrt i5 and x …
The specific heat of water is 4.18 j/(g⋅∘c). calculate the molar heat capacity of water.
Asked by wiki @ in Chemistry viewed by 353 persons
An aqueous solution is 1.00 molal in ki
Asked by admin @ in Chemistry viewed by 370 persons
21. An aqueous solution is 1.00 molal in KI. Which
change will cause the vapour pressure of thesolution to increase? TAIPMT (Prelims)-2010)(1) Addition of NaCl(2) Additon of …
Most viewed questions in Chemistry
Discuss sn2 mechanism of methyl bromide using aqueous koh
Asked by admin @ in Chemistry viewed by 2182 persons
Comparing lactose percentage between whole milk and powdered milk
Asked by admin @ in Chemistry viewed by 1920 persons
50 examples of unbalanced chemical equations with answers
Asked by admin @ in Chemistry viewed by 1386 persons
Chromium metal is immersed in an aqueous solution of cobalt(ii) chloride.
Asked by maham237 @ in Chemistry viewed by 1314 persons
Prepare a chart giving detailed information of carbon compounds
Asked by admin @ in Chemistry viewed by 1271 persons
If you are given the assignment to cut raw poultry
Asked by maham237 @ in Chemistry viewed by 1245 persons
Effect of succinic acid on cst of phenol water system
Asked by admin @ in Chemistry viewed by 1243 persons
The reaction between aluminium powder and anhydrous barium nitrate
Asked by maham237 @ in Chemistry viewed by 1215 persons
Select true statements about the pentose phosphate pathway
Asked by maham237 @ in Chemistry viewed by 1029 persons
Crossword puzzle on carbon and its compounds class 10
Asked by admin @ in Chemistry viewed by 1003 persons
Ionic bond calculator
Asked by maham237 @ in Chemistry viewed by 980 persons