A 1.0 g sample of the hydrate CoSO4 x ?H2O gave on heating, 0.55 g of the anhydrous salt, cobalt (II) sulfate. What is the formula of the hydrate?

Fill in the blanks for the following statements: the rms speed of the molecules in a sample of h2 gas at 300 k will be times larger than the rms speed of o2 molecules at the same temperature, and the ratio µrms (h2) / µrms (o2) with increasing temperature. a not enough information is given to answer this question b sixteen, will not change c four, will not change d four, will increase e sixteen, will decrease