Calculate the concentration: 2a) 45g of sodium hydroxide in 3dm3 of solution. 2b) 0.256g of sodium chloride in 500cm

Question

Calculate the concentration:

2a) 45g of sodium hydroxide in 3dm3 of solution.

2b) 0.256g of sodium chloride in 500cm3 of solution.

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Diễm Thu 5 years 2021-07-11T07:42:21+00:00 1 Answers 10 views 0

Answers ( )

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    2021-07-11T07:43:23+00:00

    Answer:

    2a) 15 g/dm3

    2b) 0.512 g/dm3

    Explanation:

    Use the concentration = mass/volume equation.

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