What mass of Li3PO4 is needed to prepare 500.0 mL of a solution having a lithium ion concentration of 0.175 M?    a. 19.3 g b. 3.38 g c. 10.1 g d. 6.75 g e. 30.4 g

Identify the solute in each of the following solutions. A. 2 g sugar and 100 mL water B. 60.0 mL of ethyl alcohol and 30.0 mL of methyl alcohol C. 55.0 mL water and 1.50 g NaCl D. Air: 200 mL O_and 800 mL N 2 2

Calculate the total concentration of ions after mixing Solution 1 and Solution 2 together; with the compositions described in the table below. Solution label Salt Concentration (M) Volume (mL) Solution 1 KF 0.500 1000 Solution 2 Fe2(SO4)3 0.750 350   a. 0.759 M   b. 0.954 M   c. 1.25 M   d. 1.71 M   e. 3.52 M

Please help

1a. How many moles of M9SO, are contained in 50. mL of a 3.0 M solution? 1b. How many grams of CaClą are dissolved in 80.0 mL of a 0.75 M solution? 1c. What is the molarity of 300 ml of a solution that contains 0.60 mol of dissolved ammonia?

Q 12 please

For each of the following solutions, how many milliliters of water should be added to yield a solution that has a concentration of 0.125 M?a. 25.0 mL of 1.00 M AgNO3   b. 5.00 mL of 10.0 M AgNO3   c. 2.50 L of 2.50 M AgNO3 d. 75.0 mL of 0.130 M AgNO3

Q 3 please

What molarity of 40.0 mL  HCl soln would be neutralized by exactly 18.5 mL of a 0.75 M NaOH soln?   A. 0.70 M B. 0.375 M C. 0.35 M D. 1. 02 M

How many grams of Na2SO4 are in 100.0 mL of a 0.2500 M solution ? The GFW is 142.07 g. А. 3.55 g В. 7.10 g C. 71.0 g D. 284 g