Which of the following choices represents a solution with pH 11.7? a) 50mL of 0.005 M KOH solution
b) 100mL of 0.01 M KOH solution
c) 200mL of 0.01 M KOH solution
d) 400mL of 0.005 M Ca(OH)2 solution

Anitrogen atom and an oxygen atom combine chemically to form nitric oxide. what is nitric oxide?

In a laboratory determination of the atomic weight of tin, a sample of tin is weighed in a crucible. nitric acid is added, and the reaction proceeds to give a hydrated tin(iv)oxide plus no2and h2o. the hydrated tin(iv)oxide is then heated strongly and reacts as follows: sno2.xh2o(s)sno2(s)+ xh2o(g)the sno2is finally cooled and weighed in the crucible. explain the effect on the calculated atomic weight of tin that would result from each of the following experimental errors: (a)considerable spattering occurs when the nitric acid is added to the tin.(b)the hydrated tin(iv)oxide is not heated sufficiently to change it completely to tin oxide.

Weight is a measure of: inertia force matter mass