In this picture the percentage is given as 0.9% mass/volume. This means there is 0.9g of sodium chloride for every 100mLs of solution. Assume you have 10.0mLs of the solution. How many grams of sodium chloride are present?

Rubbing alcohol is commonly used as an antiseptic for small cuts. It is sold as a 70% solution of isopropyl alcohol in water. What volume of isopropyl alcohol is used to make 500 mL of rubbing alcohol?

Draw th Include resonance Structure(s) of the Ö: missing formel Charges :Ö:0 I X I Ik de

A solution of atrazine (an herbicide) in water has a concentration of 0.050 µg/L. What is this concentration in units of ppb? Assume a solution density of 1.00 g/mL.

Suppose a semipermeable membrane separates compartments A and B.   Both compartments contain solutions.  The levels of the solutions are equal initially.  Answer the following questions based on this information.  Each question is a separate question.    a.  If compartment A contains a 10% sugar solution and compartment B contains a 5% sugar solution, in which compartment will the volume level rise? b.  If compartment A contains a 2% sugar solution and compartment B contains an 10% sugar solution, which solution (2% or 10%) will exert the lower osmotic pressure?

A solution is 8.25% by mass ammonium acetate. How many grams of ammonium acetate would be in 235 ml of solution that has a density of 1.18g/ml

A pool contains 4500 gallons of 1.4% chlorine solution, which means that 1 4% of the liquid in the pool is actially chlorine: the rest is water. The goal is to find how many gallons of chlorine would need to be added to increase the concentration in the pool to 3%. Round your answer to the nearest gallon. ___ gallons would need to be added to increase the concentration in the pool to 3%

Can you help me with question 1?

A & B

A solution contains 28% acetic acid by volume. This means that