Friday
April 18, 2014

Homework Help: Chemistry(Please Check)

Posted by cateye on Monday, April 23, 2012 at 11:56am.

You dissolve 6.55 g of potassium nitrate in enough water to make a 250. ML solution.

1.What is the molarity of this solution?answer:0.0262

2.If you took out 15.0 mL of this solution, how many moles of potassium nitrate would you have?answer:0.393

3. What is the percent (m/v) of this solution?answer:0.0262

4.If the resulting solution has a density of 1.45 g/mL, what is the percent (m/m) of the solution?answer:0.0181

5.How does the freezing point of this solution compare with that of pure water?answer:should be lower

6.How does the boiling point compare?answer:it should be higher than that for pure water

7.If you added 1.25 L of additional water to this solution, what would the molarity of this new solution be?answer:.0432

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry(Please Check) - You dissolve 6.55 g of potassium nitrate in enough ...
Chemistry - A saturated solution of potassium nitrate in water is prepared at 70...
chemistry - Potassium nitrate is made by adding potassium chloride to hydrogen ...
chemistry help! - Potassium nitrate has a lattice energy of -163.8 kcal/mol and ...
chemistry - Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat...
Chemistry - Lead(II) nitrate reacts with potassium iodine to produce lead(II) ...
Physical Science - Suppose you dissolve 40g of potassium nitrate in 100 cm3 of ...
chemistry - How many of potassium nitrate can dissolve in 100g of water at 50C?
chem - Potassium nitrate has a lattice energy of -163.8 kcal/ mol and a heat of ...
chemistry - Aqueous silver nitrate reacts with aqeous potassium iodide in a ...

Search
Members