equations for chemistry

Question 1

using mass and mr how do you find moles(n)

Answer 1

Moles(n)=mass/mr

Question 2

using moles and mr how do you find the mass

Answer 2

mass=moles x mr

Question 3

using moles and mass how do you find mr

Answer 3

mr=mass/moles

Question 4

what is the equation for atom economy

Answer 4

atom economy= mr of the desired product/mr of all reactants x100

Question 5

how do you find the concentration using moles(n) and volume

Answer 5

Concentration=Moles(n)/Volume

Question 6

how do you find the concentration using only mass and volume

Answer 6

concentration=mass/volume

Question 7

what is the equation of relative atomic mass (RAM)

Answer 7

RAM = (mass number of isotope 1 x percent abundance of isotope 1) + (mass number of isotope 2 x percentage abundance of isotope 2)/100