Answer:
there is 55.44 gr of silver ion in the pool
Explanation:
assuming that the pool has an rectangular area , the volume covered by the pool is
volume of pool = area*depth = 15m* 12m * 2.2 m = 396 m³
assuming that all the pool is covered with the solution that has the silver ion , then
mass = concentration in ppm * density of solution * volume of pool = 0.14*10⁻⁶ gr of silver/gr of solution * 1 gr of solution/1 ml * 396 m³ * 10⁶L/m³ = 0.14*396 gr = 55.44 gr
therefore there is 55.44 gr of silver ion in the pool
Answer:
C is the false one atoms contain chemical bonds
Answer:
The answer is C. a diol and a dicarboxylic acid
Explanation:
Because Esterification (formation of an ester) is a process that requires an alcohol to react with a carboxylic acid.
Polyester means many ester units.
one alcohol + one carboxylic acid make one ester
thus more than one of each functional groups will make more than on ester unit.
That is why diol (2OH functional groups) + dicarboxylic acid (2 Carboxyl groups) will make polyesters.
The equation for density is P=M/V, P being density. So 8/25 is 0.32. I'm not sure what the units are for density, but don't forget to add them