Other Chemistry Answers

what is the percent composition of PbCl2?

A body of density 9.0 grams per centimeter cube(g/cm3) appears to have a mass of 27.0 grams in a liquid of density 1.2 grams per centimeter cube(g/cm3), what is the volume of the solid?

A substance of density 4 grams per centimeter cube(g/cm3) causes 60g of turpentine (density 0.80 grams per centimeter cube(g/cm3)) to overflow from a displacement vessel. What is the mass of the substance?

why are some element are more dangerous than elements

Determine the chemical formula of the following compound from the valencies of the individual atoms
Sodium chloride(Na=+1, Cl=-1)
Aluminium tetraoxosulphte (VI) (AL=-3, SO4=-2)

What does photometric titration entail?

You may expect _____ bonds between two atoms which each have a valence of 1 or 2

What will be the titration curve and pH for titrating 0.2 M acetic acid with 25 ml 0.2 M of NaOH.

For calibration of 10 ml at 23 degree centigrade a 10 ml liquor of water is weighted by analytical balance which is 9.9367 g. Calculate the actual transferred volume. If the density of water at 23 degree centigrade is 0.99754 g/ ml.

A compound containing only carbon, hydrogen and oxygen was analyzed by combustion analysis. Combustion of a 10.68 g sample of the compound in excess oxygen gives 16.01 g CO2 and 4.37 g H¬2O. The molar mass of the compound is between 170 and 180 g/mol. What is the molecular formula of this compound?