Lithium has two naturally occurring isotopes, 6Li and 7 Li, with masses of6.015 amu and 7.016 amu, respectively. What is the relative abundance of each isotope

Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?