1. tentukan mol jika diketahui : a. 1,6 gr NaOH b. 1,12 L gas nitrogen (STP) c. 3,01 × 10²² atom Cu d. 100 ml larutan HCl 0,01 M
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Pertanyaan
1. tentukan mol jika diketahui :
a. 1,6 gr NaOH
b. 1,12 L gas nitrogen (STP)
c. 3,01 × 10²² atom Cu
d. 100 ml larutan HCl 0,01 M
a. 1,6 gr NaOH
b. 1,12 L gas nitrogen (STP)
c. 3,01 × 10²² atom Cu
d. 100 ml larutan HCl 0,01 M
1 Jawaban
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1. Jawaban cutestprof
BE NaOH = Ar Na+ Ar O + Ar H
= 23+16+1 = 40
a. n = gram / BE
n = 1.6 / 40
n = 0.04 mol
b. n = v/ 22.4
= 1.12/22.4
= 0.05 mol
c. n = 3.01 x 10^22 / 6.02 x 10^23
= 0.05 mol
d. 100 ml = 0.1 L
n = M/V
= 0.01/0.1
= 0.1 mol