Part one: calculate the molarity of ba2+ in an aqueous solution that contains 1.7 g of ba(oh)2 in 0.75 l of solution.
answer in units of mol/l.
part two: what is the molarity of h3o+?
answer in units of mol/l.

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

To save time, you can approximate the initial mass of the solid to the nearest ±1 g. for example, if you are asked to add 14.3 g of copper, add between 13 g and 15 g. which of the following sets include two samples with an equal density? which all that apply below 15.4 g gold and 18.7 g silver 15.2 g copper and 50.0 g copper 20.2 g silver and 20.2 g copper 11.2 g gold and 14.9 g gold

When you perform this reaction, what could remain at the end of the reaction? check all that apply. excess reactant aqueous copper chloride excess reactant aluminum oxygen product solid copper carbon dioxide product aqueous aluminum chloride water