[" A "3.0" g sample of "Na_(2)CO_(3).10.H_(2)O" is heated to constant mass.How much "],[" anhydrous salt remains? "]

A 3.0 g sample of Na_(2)CO_(3).H_(2)O is heated to a constant mass. How much anhydrous salt remains ?

A 5.0 g sample of Cu (NO_(3))_(2).n(H_(2)O) is heated, and 3.9 g of the anhydrous salt remains. What is the value of 'n' ?

A 5.0 g sample of Cu (NO_(3))_(2).n (H_(2)O) is heated, and 3.9 g of anhydrous salt remains. What is the value of 'n' ? Cu(NO_(3))_(2),n(H_(2)O)overset(Delta)toCu(NO_(3))_(2)+nH_(2)O

A 2.5 g sample of hydrate of Ca (NO_(3))_(2) was heated and only 1. 7 g of anhydrous salt remained. What percentage of water was in the hydrate ?

Calculate formula unit mass of Na_(2)CO_(3).10H_(2)O

The crystalline salt Na_(2)CO_(3)*xH_(2)O on heating loses "63%" of its mass and becomes anhydrous.The formula of the compound is "

The hydrated salt Na_(2)CO_(3).xH_(2)O undergoes 63% loss in mass on heating and becomes anhydrous . The value x is :