If an aqueous solution is 2.79 % (w/v) in manganese(II) iodide , , how many grams of manganese(II) iodide are there in a liter of solution?

If an aqueous solution is 2.79% (w/v) in manganese(II) iodide, , how many grams of manganese(II) iodide are there in a liter of solution?

_______ g

How many grams of ammonium phosphate, , are required to make a 4.33 %(w/v) aqueous solution in a 250. mL volumetric flask?

_____g

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