Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

Define the following terms: (i) Mole fraction (ii) Molality (iii) Molarity (iv) Mass percentage.

Define the following terms: (i) Mole fraction (ii) Molality (iii) Molarity (iv) Mass percentage.

Grade:11

1 Answers

Anjali Ahuja
askIITians Faculty 240 Points
6 years ago
Hello student
a) Mole fraction-Mole fraction is the ratio of number of moles of one component to the total number of moles present in solution. It is represented by x. If a solution contains the components solute and solvent, then the mole fraction is given by
Mole fraction of solute, Xsolute- nsolute / nsolute+ nsolvent
Mole fraction of solute, Xsolvent- nsolvent / nsolute+ n
solvent
where Xsolute+ Xsolvent = 1

b) Molality- The molality of a solution is calculated by taking the moles of solute and dividing by the kilograms of solvent.
Molality (m)- Moles of solute
Kilograms of solvent


c) Molarity- Molarity is the number of moles of a solute dissolved in a liter of solution.
Molarity (M) = moles solute
liters solution


d) Mass percentage- Mass percentage is one way of representing the concentration of an element in a compound or a component in a mixture. Mass percentage is calculated as the mass of a component divided by the total mass of the mixture, multiplied by 100%.
Also written As: mass percent, (w/w)%

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free