MATH Connection Porosity is the fraction of material occupied by empty spaces. It can be expressed as a percent or a decimal. Assume
that the porosity of a sample of sand and a sample of gravel is the same:
30 percent (0.30). Determine the porosity of a mixture of the sand and
gravel, assuring that the sand fills the spaces between the gravel.

V1t2 = v2t1 is an expression of who’s law

Explain why pure hydrogen cyanide does not conduct electricity, but become a conductor when it is dissolved in water? (at room temp, pure hcn exists as a volatile liquid)

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.