A 0.25 M solution of magnesium nitrate is diluted to one half its original concentration. What is the total concentration of ions (magnesium ions AND nitrate ions) in the dilute solution? a) 0.125 M b) 0.25 M c) 0.375 M d) 0.50 M e) 0.75 M

Determine the volume (in mL) of water that needs to be added to 25.0 mL of a 0.250 M NaBrto produce a 0.0395 M solution. Assume the volumes are additive.

How much NaCl should be added to 0.35 L of a 0.15 M solution of AgNO3 so that it reacts completely with the silver to form AgCl(s)? A. 3.07 g OB. 0.0525 g C. 0.89 mg OD. 8.8 g

1. If 30.4 g of Nal (MM=149.89g/mol) are added to a 500.0 mL volumetric flask, and water is added to fill the flask, what is the concentration of Nal in the resulting solution? 2. What volume (in L) of 1.1 M FeCl3 would be required to obtain 0.59 moles of Cl- ions?

It required 20.1 mL of an aqueous HCl solution to react completely with 0.1060 g Na₂CO, (105.99 g/mol). The products are sodium chloride, carbon dioxide, and water. What is the concentration of HCI in the aqueous solution? Select one: O a. 0.0995 M O b. 0.0499 M Oc. 0.0249 M O d. 0.0745 M

Assume the given amount of RbF fully dissociates in water. Calculate the molarity of a solution if 145.20 g of RbF are dissolved into a solution of water that has a final volume of 2.00 L.

7) A sample of an unknown alkaline earth metal hydroxide is dissolved in 100.0 mL of water. The resulting solution is titrated to an indicator endpoint with 1.008 M aqueous All Sections b) If the sample amount is 1.042 g, what is the molar mass of the unknown metal hydrochloric acid. The indicator changes color after 17.00 mL of the acid has been added. a) Write the generic equation. hydroxide? hsoc) What is the identity of the metal?

85.31 g of sodium sulfate is placed in enough water to make 14.5mL of solution. Determine the molar concentrations of each ion in solution.

Calculate the concentration of all ions present in 0.156 g MgCl, in 100.0 mL of solution. MMg+ MCF

Calculate the molarity of 150.0 mL of sodium hydroxide solution needed to react with 65.7 mL of a 0.128 M solution of phosphoric acid. OA. 0.877 M Ов.0.168 м Oc. 0.0974 M OD. 0.0420 M OE. 0.0187 M OF. 0.0390 M OG. 0.0561 M OH.0.292 M QUESTION 2 What volume of 0.128 M solution of hydrochloric acid is needed to react with 200.0 mL of 0.128 M calcium hydroxide? O A. 0.0000410 mL Ов. 100. mL OC. 0.000164 mL OD. 24400 mL OE. 400. mL OF. 0.0000819 ml OG. 200. ml OH.6100 mL QUESTION 3 Given a density of 1.17 g/mL, what volume of a 50.5% solution of sulfuric acid is needed to react 350.0 mL of 0.138 M strontium hydroxide? OA. 95.6 mL Ов. 13100 mL OC. 5.15 mL OD.6.02 mL OE. 9.38 mL OF. 8.02 mL OG. 15300 mL OH.4.40 mL QUESTION 4 Given 200.0 mL of a 0.139 M solution of aluminum chloride, according to the following equation, how many mL of a 0.358 M solution of sodium carbonate are needed to react with the aluminum chloride? 3 NazcOg(aq) + 2 AICI3(aq) - Alg(coz)a(s) + 6 Naci(aq) OA. 77.7 ml OB.…