Calculate the molarity of each solution. 61.3 g of C2H6O in 3.2 L of solution         Express your answer using two significant figures.

A 195 mL sample of ocean water contains 7.0 gg of NaCl. What is the molarity of the solution with respect to  NaCl ?        Express your answer using two significant figures.

At a certain temperature, an aqueous solution is 16.5% K2CO3 by mass and has a density of 1.149 g/cm3. What is the molarity of the solution?Provide your answer with 3 significant figures.

If the CaCl₂ was available not as a solid, but rather as a 0.40 molar solution, how many mL of that solution should be used if you desire to make 1.0 grams of MgCl₂? Do not include units in your answer. Make sure your answer has at least 3 significant digits.

A chemist must prepare 300.mL of 2.00M aqueous silver perchlorate AgClO4 working solution. He'll do this by pouring out some 5.62molL aqueous silver perchlorate stock solution into a graduated cylinder and diluting it with distilled water. Calculate the volume in mL of the silver perchlorate stock solution that the chemist should pour out. Round your answer to 3 significant digits.

Suppose 0.925 g of barium nitrate is dissolved in 250. mL of a 56.0 m M aqueous solution of ammonium sulfate. Calculate the final molarity of barium cation in the solution. You can assume the volume of the solution doesn't change when the barium nitrate is dissolved in it. Round your answer to 3 significant digits. M x10

A chemist prepares a solution of silver perchlorate (AgC104) by measuring out 220. g of silver perchlorate into a 400. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's silver perchlorate solution. Round your answer to 3 significant digits.

Suppose 13.5 g of barium acetate is dissolved in 300. mL of a 0.20 M aqueous solution of ammonium sulfate. Calculate the final molarity of barium cation in the solution. You can assume the volume of the solution doesn't change when the barium acetate is dissolved in it. Round your answer to 3 significant digits. M x10 X 5

Calculate the molarity of each of the following solutions. Round each of your answers to 3 significant digits. Part 1 of 3 6.59 g of methanol (CH3OH) in 1.50 × 10² mL of solution. Part 2 of 3 M Part 3 of 3 M x10 8.37 g of calcium chloride (CaCl₂) in 2.20 × 10² mL of solution. X M x10 X 7.02 g of naphthalene (C₁0Hg) in 85.2 mL of benzene solution. ☐ Ś x10 X S Ś

A chemist prepares a solution of barium chlorate BaClO32 by measuring out 10.μmol of barium chlorate into a 150.mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in /molL of the chemist's barium chlorate solution. Round your answer to 2 significant digits.