How do you calculate the number of moles from volume?
Jan 8, 2014 · where ρ is the density, m is the mass, and V is the volume of the sample. We can rearrange the formula to get. m = V ×ρ. mass = 10.00mL × 1.080 g 1mL = 10.80 g. n = 10.80g × 1 mol 102.1g = 0.1058 mol. MOLES FROM VOLUME OF SOLUTION. Molarity is the number of moles of a substance in one litre of solution ...
Refractive index = sin i/sin r or sin r/sin i. what does it ... - Socratic
Jun 28, 2016 · The equations are equivalent - the angle through which the light will bend will depend on the relative speeds in the two media. The more the light slows down the greater the angle it turns through i.e the greater the difference between sin i and sin r and therefore the greater the refractive index. Think of a car going from a motorway into a level field at an angle. The wheel that enters the ...
What is the partial pressure of "O"_2 in air at "1 atm ... - Socratic
Mar 30, 2018 · For starters, you know that the partial pressure of a gas that's part of a gaseous mixture can be calculated using the following equation--think Dalton's Law of Partial Pressures here!