volume , V = 550.0 mL
= 0.55 L
we have below equation to be used:
number of mol,
n = Molarity * Volume
= 1.5*0.55
= 0.825 mol
Molar mass of KNO3 = 1*MM(K) + 1*MM(N) + 3*MM(O)
= 1*39.1 + 1*14.01 + 3*16.0
= 101.11 g/mol
we have below equation to be used:
mass of KNO3,
m = number of mol * molar mass
= 0.825 mol * 101.11 g/mol
= 83.42 g
Answer: 83 g
Feel free to comment below if you have any doubts or if this answer do not work. I will edit it if you let me know
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