What mass of ca(oh)2 is needed to make 1250ml of a .75m solution?

Ineed with a, b, c, d, and e on the long answer

For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with ph. if the solubility does change, pick the ph at which you'd expect the highest solubility. you'll find ksp data in the aleks data tab. compounds does solubility change with ph

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions