How many moles of NaOH would you have in a sample that weighed 10g?

Question

How many moles of NaOH
would you have in a
sample that weighed 10g?

in progress 0
Thiên Ân 3 years 2021-08-22T05:23:16+00:00 1 Answers 8 views 0

Answers ( )

    0
    2021-08-22T05:25:11+00:00

    Answer: There are 0.25 moles of NaOH  in a sample that weighed 10g.

    Explanation:

    Given: Mass of NaOH = 10 g

    Molar mass of NaOH is 40 g/mol.

    Number of moles is the mass of substance divided by its molar mass.

    Therefore, moles of NaOH are calculated as follows.

    No. of moles = \frac{mass}{molarmass}\\= \frac{10g}{40  g/mol}\\= 0.25 mol

    Thus, we can conclude that there are 0.25 moles of NaOH  in a sample that weighed 10g.

Leave an answer

Browse

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