# chemistry

If a saline solution has a concentration of 0.25 g per mL, calculate the following.
a) The concentration of this solution in %w/v.
b) The concentration of this solution in grams per litre (g/L).
c) The concentration of this solution in milligrams per mL (mg/mL).

1. 1
1. %w/v means g/100 mL soln.
0.25g/mL x 100 mL = 25g = 25/100 mL = 25%

I can't believe you can't do b and c. What exactly do you not understand about them.

posted by DrBob222

## Similar Questions

1. ### Chemistryyy

a) A standard solution of 0.243 M NaOH was used to determine the concentration of a hydrochloric acid solution. If 46.33 mL of NaOH is needed to neutralize 10.00 mL of the acid, what is the molar concentration of the acid? b) A
2. ### math

a pharmacist mixed some 10% saline solution with some 15% saline solution to obtain 100ml of a 12%saline solution.How much of 10% saline solution did the pharmist use in the mixture.dO NOT UNDERSTAND TO MUCH INFO.
3. ### chemistry

A saline solution was prepared by dissolving 5.45 g sodium chloride to 96.77 g water. What is the concentration in weight percent for this saline solution?
4. ### Algebra 1 college

How much of a 12% saline solution should be mixed with a 4% saline solution to obtain 40 milliliters of a 6% saline solution?. Use a system of equations and elimination method to solve. can someone please see if I am on the right
5. ### Chemistry

Normal saline solution is 0.91%w/v Calculate thge concentration of this solution in grams per litre????
6. ### Chemistry

Normal saline solution is 0.91%w/v. Calculate the concentration of this solution in milligrams per litre (mg/L)
7. ### Pre-Algebra Calculus

NEED HELP PLEASE Mixture Problems 1.Joe created a metal containing 40% platinum by combining two other metals. One of these other metals weighed 12 lb. and contained 45% platinum. If the other weighed 3 lb. then what percent of it
8. ### Algebra

A dehydrated patient needs a 3.82% saline IV. Unfortunately, the hospital only has bags of 4% and 3% saline solutions. How many liters of each of these solutions should be mixed together to yield 5 liters of the desired
9. ### math

you have an unlimited supply of 5% saline solution and 8% saline solution. How much of each type would you have to use to create 60 ounces of 7% saline solution? Write and solve a system of equations to model and solve this
10. ### Algebra

A saline solution was made by mixing 11 ml of a 36% saline solution and 6 ml of a 53 % saline solution. How do I find the consentration of the new mixture?

More Similar Questions