# 4. A student added 25.00 grams of sodium nitrate to a 2.00 Litre volumetric flask. Whatis the molarity (M) of the resulting solution?5. A student mixed 20.00 grams of calcium nitrate, 10.00 grams of sodium nitrate, and50.00 grams of aluminum nitrate in a 5.00 Litre volumetric flask. What is the molarity(M) of the resulting solution relative to the nitrate ion, NO31-?6. How many grams of phosphoric acid are required to react with 50.00 mL of a 0.800M calcium nitrate solution?

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Question 4

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Step 1

Solution stoichiometry involves the calculation of concentration of solutions in the given conditions of volumes, moles etc.

Step 2

Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are used to calculate the molarity of solution. The relation between moles, volume and molarity is as given below;

Step 3

Mass of sodium nitrate = 25.00 g

Molar mass of sodium nitrate = ...

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