Question

element X reacts with water to form the compound X205 if 0.35 gram of element forms 0.55 gram of the compound what is the approximate atomic mass of the element

Answer 1

mass of O in the compound = .55 - 0.035 = 0.515 g = 0.515 / 16 moles of O = 0.0322 moles molar ratio of X :O = 2 5

mass data ... 49.2% by weight of your compound is fluorine. ... 5: 7.8 g of an element X reacts with oxygen to form 9.4 g of an oxide ...

sebanyak 0,7 gram BaF2 (Mr=175) melarut dalam air murni membentuk 2L ...

Diketahui : m BaF2 = 0,7 gram. Mr = 175 gram