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Please show work How many moles would there be in 115 ml of a 0.652 M solution?
115*0.652/1000 = 0.0750 mol
How many grams are in moles of Li2O show work?
The molar mass of Li2O is 29,88 g (the sum of atomic weights of 2Li and 1O).
Formula for percent yield in chemistry?
Percentage yield is worked out as (amount you got/ amount you could have got) x 100 You should do the calculation in moles so weigh your compound, work out its molar mass and divide the mass by the molar mass to get number of moles. Then you have to work out your maximum theoretical yield - work out how many moles of reactant you started with and check the stoichiometric ratio from your balanced equation to find how many moles you expected to get. In organic reactions a yield of 60% or so is normal. The more steps you went through in your preparation, the lower you would expect your yield to be. Many reactions just do give a low yield anyway, because they are at equilibrium rather than going to completion, like the Haber process.
How many Na atoms are in 0.25 moles of Na Show work?
0.25 x 6.022 x 10^23=1.05055 x10^23
How does the bonding work between water molecules?
heat transfers to the water molecules
How many grams of O2 are in 15 moles of O2. with work shown?
15 moles O2 (32 grams/1 mole O2) = 480 grams
How many molecules are there in 60.0g of acetic acid C2H402?
Find the moles using the formula: moles= grams/molecular mass In this case, molecular mass = 24+4+32 = 60g/mol so 66/60 = 1.1 moles Then, using avogadro's constant, work out the number of molecules. n(molecules) = number of moles x 6.02x10^23 =1.1x 6.02x 10^23 =?
How do you work out the number of moles of unknown compound if you are only given the molar mass?
The molar mass of any compound contain a number of molecules equal to the number of Avogadro:6,022 140 857(74).10e+23.
How many moles grams are in 24.6 moles of Fe?
Find iron (Fe) on the periodic table the biggest number (at the bottom) is the mass number 1 mole is that number in grams. you can work it out from there.
Does wart cream work for moles?
no it dosent
What is the work shown for 8 divided by 712?
0.0112
What is 0.4divided by 25 work being shown?
0.4divided by 25 work being shown = 0.016
What is 4 divided 457 work shown?
4 divided 457 work shown = 0.0087527352297593
What is the work of protein?
Proteins are large, complex molecules that play many critical roles in the body.
Please show work How many moles would there be in 115 ml of a 0.652 M solution?
115*0.652/1000 = 0.0750 mol
How many grams are in moles of Li2O show work?
The molar mass of Li2O is 29,88 g (the sum of atomic weights of 2Li and 1O).
How many moles of AlCl3 are produced from 0.30 mole of Cl2 Show the work?
Balanced equation: 2Al + 3Cl2 -> 2AlCl3For every 3 moles of Cl2, 2 moles of AlCl3 is produced (Using the numbers in front of the compounds)Now set up a proportion: 3/2 = 0.30/?Cross Multiply: (2 X 0.30) / 3 = 0.20.2 moles of AlCl3 will be produced.
