Other Chemistry Answers

a mole of bowling balls would cover the surface of the earth to a depth of how much?

1.Ammonia difuses 1.41times as fast as gas xH3 . determine the relative atomic mass of element x

2.A sealed gas tube containing air at stp was immersed in water at 100c . assuming there was no increase in the volume of the glass tube due to expansion of gas, calculate the pressure of the air inside the tube

1.Calculate the rfm of gasA given that the time taken for equal volumes of oxygen and gas A to diffuse through a hole is 20sec and 24 sec respectively

2.A given volume of ozone O3 ,diffused from a certain apparatus in 96 sec.calculte the time taken by an equal volume of carbon (iv)oxide to diffuse under the same condition

3.given that the time taken for equal volume of gas A and gas B to diffuse through the same hole is 20 and 24 , calculate the molecular mass of gas B if the molecular mass of A is 32

List the lab equipment you would use and state the procedure you would use to find the heat or enthalpy of solution for the reaction between excess powdered zinc and copper (II) sulphate.

in an experiment,50.0 cm 3 of magnesium chloride were titrated with 1.00 mol/dm3 sodium hydroxide. calculate the concentration of magnesium chloride

Atom Z, whose atomic mass is 3.49 x 10-22g and the number of its neutrons exceeds the

number of its protons by 41

What is the molarity of a solution in which 23 grams of NaCl is dissolved in 1.08 L solution , with work shown.

How many grams are needed of ammonium hydroxide if it is reacted with bismuth(III) sulfate to give you 16 grams of bismuth hydroxide, the other product is ammonium sulfate. Also how many grams of bismuth(III) sulfate are needed?

How many molecules are in 3 mole of the compound C6H12O6

234 91 Pa produces ___ + 4 2He