Calculate the solubility of magnesium carbonate, MgCO3, at 25oC in distilled water? Assume the solution acts as an ideal-fluid.
The solubility product constant is 
What will be an ideal response?
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Your small company is considering whether to buy a new automobile or to lease it. You have determined that to purchase a new vehicle it will cost $21 000. After eight years of use, the vehicle can be sold for $4 500. The cost to lease the same vehicle is found to be $3 000 per year for a four-year lease after a delivery payment of $2 000. It is expected that the annual operating and maintenance will cost about $1 800 whether the vehicle is purchased or leased. Should you buy or lease? Use present worth analysis to justify your answer. Assume the interest rate is 4 percent compounded annually.
What will be an ideal response?
Pastures never need to be fertilized
Indicate whether the statement is true or false.
When measuring resistance, a reading of OL on the DMM indicates ________
A) An open circuit B) A defective meter probe C) Continuity of the circuit D) None of these
When running passes (other than the root) on open-root V-groove pipe welds in the 2G position, use stringer
beads and a slight circular or side-to-side motion to ensure fusion at the _____. a. face of the weld bead b. toes of the weld bead c. root of the weld bead d. leg of the weld bead