Answer:
The answer to your question is:
Explanation:
Law of constant composition states that a given compound always contains its component elements in a fixed ratio.
Data
Sample 1 32.4 g of C and 373 g of Cl
Sample 2 12.3 g of C and 112 g of Cl
Convert the grams to moles and compare the ratios
Sample 1 Sample 2
12 g of C --------------- 1 mol 12 g of C -------------- 1 mol
32.4 g ---------------- x 12.3 ------------- x
x = (32.4 x 1) / 12 x = (12.3 x 1) / 12
x = 2.7 moles of C x = 1.025 moles of C
35.5 g of Cl ---------- 1 mol 35.5 g of Cl ---------- 1 mol
373 g ------------------ x 112 g of Cl ----------- x
x = (373 x 1) / 35.5 x = (112 x 1) / 35.5
x = 10.5 moles of Cl x = 3.15 moles of Cl
Ratio
10.5 / 2.7 = 3.9 3.15/1.025 = 3.1
The ratio must be equal in both samples to say that the law is constant. So the answer is NO.
2.-
1) H3PO4 3 hydrogens
2) Na2HPO4 1 hydrogen
3) Ca(HCO3)2 2 hydrogens
4) Ba(C2H3O2)2 6 hydrogens
