Adrinking water at ph 7.2 contains 8 x 10^-4 m tot ca and has an alkalinity of 80 mg/l as caco3, provided entirely by species of the carbonate group. it is desired to adjust the ph of this water to cause calcite to be slightly supersaturated for the purposes of corrosion control. how much lime must be added to achieve a saturation index of 0.2? what would the ph of the water be?

Need ! asap will mark 10 pts using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers

Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt