4. Calculate the concentrations of Ca2 and C2O4 2- in the first well without a precipitate. Note: In the well without a precipitate, all the Ca(NO3 )2 and the Na2C2O4 dissolved and disassociated. 5. Use the concentrations of Ca2 and C2O4 2- that you determined above to calculate the solubility product constant of CaC2O4. 6. Molecular motion increases with temperature. How does temperature affect the observed value of the solubility product constant

Construct the hypothetical phase diagram for metals a and b between room temperature (20c) and 700c, given the following information: * the melting temperature of metal a is 480c. • the maximum solubility of b in a is 4 wt% b, which occurs at 420c. • the solubility of b in a at room temperature is 0 wt% b. • one eutectic occurs at 420c and 18 wt% b–82 wt% a. • a second eutectic occurs at 475c and 42 wt% b–58 wt% a. • the intermetallic compound ab exists at a composition of 30 wt% b–70 wt% a, and melts congruently at 525c.• the melting temperature of metal b is 600c. • the maximum solubility of a in b is 13 wt% a, which occurs at 475c. • the solubility of a in b at room temperature is 3 wt% a.

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.