Which of the following is true regarding dilutions?
the number of moles of solute do not change
the number of moles of solute change
more solvent is added to a stock solution to increase the concentration
more solute is added to a stock solution to increase the concentration

How many grams of n2h4 will be consumed by 23 g of n2o4

Plzz a sample of table sugar (sucrose, c12h22o11) has a mass of 7.801 g. ● a) calculate the number of moles of c12h22o11 in the sample b) calculate the number of moles of each element in c12h22o11 (number of moles of c, number of moles of h & number of moles of o) in the sample. (use your answer from part a as your starting point.) show your work and highlight your final answer. calculate the number of atoms of each element in c12h22o11 (number of atoms of c, number of atoms of h & number of atoms of o) in the sample. (use your answers from part b as your starting for each element.) show your work and highlight your final answer.

Which method would be best to separate a mixture of sand and gravel