April 19, 2014

Homework Help: Chemistry-Help Please!

Posted by Julie on Thursday, May 19, 2011 at 4:13pm.

@ 20 Celsius - 22g CuSO4 / 100g H2O
@ 40 Celsius- 42g CuSO4 / 100g H2O

Using this, answer whether these are saturated or unsaturated

@ 40 Celsius is 5g CuSO4 / 10g H2O

@ 40 Celsius is 99g CuSO4 / 250g H2)

I was told that the first one is unsaturated and the second one is saturated but...I come up the opposite of what I was told....Help please!

Also, I looking for someone to tell me if the answers are correct that I came up with to these questions.

Can anyone tell me if I am right on these?

Calculate the amount of solute needed to make each of the solutions

225g of 10% (m/m) K2CO3 solution
Answer: 22.5g K2CO3

0.50kg of 18% (m/m) KOH solution
Answer: 90g KOH

Answer this Question

First Name:
School Subject:

Related Questions

Chemistry - @ 20 Celsius - 22g CuSO4 / 100g H2O @ 40 Celsius- 42g CuSO4 / 100g ...
chemistry - @20*C solubility - 22g CuSO4 / 100g H2O @40*C solubility - 42g CuSO4...
Chem - 20degree C solubility-22g CuSO4/100g H2O @ 20 degree C is 30g CuSO4/150g ...
Chemistry - Given: solubility (g/100g H2O) temp degrees celcius KBR 20 65 40 80 ...
chemistry:(.... - what temperature would each of the following solubility be ...
chemistry - Here is a following practice question on my study guide. i have no ...
chemistry - A sample of a hydrate of CuSO4 with a mass of 250 grams was heated ...
chemistry - the solubility of Kl is 50g in 100g of H2O at 20 celcius, if 110g of...
Chemistry - @ 20 degrees C is 6g CuSO4 in 25g of H2O saturated or unsaturated? ...
Chem - @20 degree solubility-22g Cu SO4/100g H2O @ 20 degree C is 6g Cu SO4/25 g...