2 moles of Ca and 4 moles of OH
In one mole of this solution, there are seven moles of H2O.
1 mole of mass of ca (OH) 2 = 40*1 + (16 + 1) 2 = 40 + 34 = 74g. So, mass of 24 moles = 24*74 = 1776g.
To convert mass to moles, you use the equation n= m/M n is moles, m is mass, M= Molar mass, which is the mass of the atoms in the formula or substance.
This formula is: moles = mass of the compound/molar mass of the componnd
to convert mass into moles you divide by the molar mass. You cannot convert molar mass directly to moles.
0.615 moles Because the 13 is Carbon's atomic mass so 13.0g/moles Moles=Mass/atomic mass Moles=8.00/13.0= 0.615 moles
Dis is King. 5.00 g CAOH^--First you want to balance this because its not balanced.CaOH2 x 1mol of CaOH2/Molar mass xGrams of Ca /1molCaOH=So itll be like this:CaOH2 x 1mil of CaOH2/74gCaOH x 40gofCA/1milCaOH= 2.70 G.
Grams/Molar mass = moles
Calculate:mass/molar mass = moles
By dividing the total mass of the number of moles that you are considering by number of moles; the result is the molar mass.
Number of moles = Total mass/Molar mass
Since molar mass of hydrogen is 1g , the no. of moles = mass of hydrogen given. or No. of moles= Given mass of substance/Molar mass of substance
moles=mass/Molar Mass 6.50=mass/98 mass=637g 6.5 moles of H2SO4 weighs 637g.
Atomic mass of Sulphur is 32 1 mole = Atomic mass of sulphur No. of moles = Given mass/ Atomic mass No.of moles= 5/32 0.15 moles
No of moles= given mass/molecular mass = 600/30= 20 moles
Moles = mass/molar mass = 1/197 = 0.005 moles
Divide the mass by the number of moles.
no. of moles = mass in g/mass of one mole no. of moles = 28.52/174.3 no. of moles = 0.16363 mol (rounded)
the number of moles is mass in grams divided by relative mass example how many moles are there in 42g of carbon? answer 42 / 12 = 3.5 moles mass in grams divided relative mass = number of moles
number of moles = mass/molecular mass. = 24/12 = ~2 moles