What is the molarity of a solution containing 20moles of NaCl dissolved in 10 liters of water? 10 mol/L 2 mol/L 5mol/L

Question

What is the molarity of a solution containing 20moles of NaCl dissolved in 10 liters of water?
10 mol/L
2 mol/L
5mol/L
0.5 mol/L

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RI SƠ 5 years 2021-08-30T07:27:47+00:00 1 Answers 11 views 0

Answers ( )

  1. phucdien
    0
    2021-08-30T07:28:57+00:00
    Reply

    m=20 moles
    V=10 liters
    M=?
    M=moles (solute) / volume(L)
    M= 20/10 = 2 mol/l

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )