How many TOTAL ions (barium cations + acetate anions) would be produced as aqueous species in the water solvent if four molecules of barium acetate dissolved? The answer is _____ total ions (Please enter your answer as a whole number.)

If 0.500 mL of an 0.219 M NaCl solution is added to 100.0 mL of pure water.  what is the concentration of the new solution? Your answer should have 3 sig figs

If 0.500 mL of an 0.208 M NaCl solution is added to 100.0 mL of pure water.  what is the concentration of the new solution? Your answer should have 3 sig figs

A student weighs out a 2.76 g sample of NaOH , transfers it to a 500. mL volumetric flask, adds enough water to dissolve it and then adds water to the 500. mL tick mark. What is the molarity of sodium hydroxide in the resulting solution? Molarity =  _____M

If 26.8 g of KBr (MM = 119.00 g/ mol) are added to a 500.0 mL volumetric flask, and water is added to fill the flask, what is the concentration of KBr in the resulting solution?

If 40.7 g of CH₃OH (MM = 32.04 g/mol) are added to a 500.0 mL volumetric flask, and water is added to fill the flask, what is the concentration of CH₃OH in the resulting solution?

HCI

A barium hydroxide solution is prepared by dissolving 2.69 g of Ba(OH), in water to make 54.3 mL of solution. What is the concentration of the solution in units of molarity? concentration: The barium hydroxide solution is used to titrate a perchloric acid solution of unknown concentration. Write a balanced chemical equation to represent the reaction between barium hydroxide and perchloric acid. chemical equation: M If 23.4 mL of the barium hydroxide solution was needed to neutralize a 4.66 ml aliquot of the perchloric acid solution, what is the concentration of the acid? concentration: M

Chemistry Can someone answer this please.