A #17.2*g# mass of ethylene glycol was dissolved in a #500*g# mass of water to give a solution of #515*mL# volume. What are....?

#"(i) Molarity..."#
#"(ii) Molality..."#
#"(iii) Percentage by mass..."#
#"(iv) Moles fractions of each component..."#

Answer 1

#"Moles of solute"# #=# #(17.2*g)/(62.07*g*mol^-1)=0.277*mol#

#"Molarity"="Moles of solute"/"Volume of solution"=(0.277*mol)/(0.515*L)#
#~=0.50*mol*L^-1#
#"Molality"="Moles of solute"/"Kilograms of solvent"=(0.277*mol)/(0.500*kg)#
#~=0.50*mol*kg^-1#
#"Percentage by mass"# #=# #"Mass of solute"/"Mass of solution"xx100%#
#=(17.2*g)/(17.2*g+500*g)xx100%=3.33%(m/m)#
#"Mole fraction, "chi_"diol"# #=# #"Moles of diol"/"Moles of diol + moles of solvent"#
#=(0.277*mol)/(0.277*mol+(500*g)/(18.01*g*mol^-1))~=0.001#
What is #chi_"water"#?
Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email
Answer 2

What are the molality and molarity of the ethylene glycol solution?

Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email
Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

Not the question you need?

Drag image here or click to upload

Or press Ctrl + V to paste
Answer Background
HIX Tutor
Solve ANY homework problem with a smart AI
  • 98% accuracy study help
  • Covers math, physics, chemistry, biology, and more
  • Step-by-step, in-depth guides
  • Readily available 24/7