If an impure sample of soda ash is known to contain 40.00% of na2co3, calculate the sample size in mg which will react with exactly 40.00 ml of 0.1100 m hcl. what is the % purity of a soda ash sample if it took 42.15ml of 0.1100 m hcl to titrate 0.5017 g of the sample?

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.