Question

A. kalsium tersisa 5 gram
b. kalsium tersisa 10 gram
c. asam klorida tersisa 8 gram
d. asam klorida tersisa 6,25 gram
e. kedua pereaksi tepat habis bereaksi

Answer 1

Verified answer

Materi : Stoikiometri

Ca + 2 HCl ----> CaCl2 + H2

Ca: 20/40 = 0.5 mol
HCl: 18.25/36.5 = 0.5 mol

Pembatas reaksi HCl sebesar 0.5 mol

Ca yg bereaksi: 1/2 × 0.5 = 0.25 mol

Sisa Ca: 0.25 mol = 10 gram

a. ❌
b. ✔
c. ❌
d. ❌
e. ❌

Jawaban B.


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