In the world of chemisty, a 'mole is a number of something a very lary large number of something. just as a dozen is 12 of something, a mole is about 6.02 * 10^23 of something . in chemistry, we like to measure the number of atoms or molecules in moles. if one mole is equal to 6.02 * 10^23 atoms, and you have 8.00 * 10 ^23 atoms, then how many moles do you have ?

Compare and contrast physical changes with chemical changes.

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm

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.