(b) What volume, in liters, of a 0.8 M H3PO4 solution can be prepared by diluting 50 mL of a 3.5 M H3PO4 solution? Show your work. (5 points
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moles in 1.2 L =?
= 1.2L/1L * 0.8 MOLES = 0.96 moles
mass in grams = moles * molar mass
=0.96 moles * 97.994 g/ mole = 94.07424 g
moles in 50 ml = ?
= 50/1000 * 3.5 = 0.175 moles
0.175 moles will be in what volume of 0.8 M H3PO4
= 0.175 mole/0.8 * 1000
= 218.75 ml
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