0
Moles = Mass/Molar Mass.
Using this equation, we can take 25/(1.0 + 19) and find that it is equal to 1.25 moles.
Keep in mind that very few significant figures were used for this example (2), and that if accuracy is to be expected, as many as possible should be used.
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How many moles of chromate ions are present in a sample that contains 3.71 moles of iron-III- chromate Fe2-CrO4-3. Dashes are parentheses.?
Fe2(CrO4)3 3.71 moles Fe2(CrO4)3 (3 moles CrO4/1 mole Fe2(CrO4)3) = 11.1 moles of chromate
How many moles of nitrogen are there in 3 moles of ammonium nitrate?
The volume occupied by 3 moles of nitrogen gas will be different, depending on the temperature and pressure of the gas.
The mass of 3 moles of ammonia would be how many grams?
3 moles of ammonia is 51grams. One mole is 17 grams.
How many moles of ammonia can be produced from 18 moles of hydrogen?
2N + 3H2 -> 2NH3 18 moles H2 (2 moles NH3/3 moles H2) = 12 mole ammonia
How many moles of potassium chlorate must be used to produce 6 moles of oxygen gas?
2KClO3 --> 2KCl + 3O2For every 3 moles of oxygen gas produced, 2 moles of potassium chlorate are used.6 moles O2 * (2 moles KClO3 reacted / 3 moles O2 produced) = 4 moles KClO3
How many moles of HF will react completely with 12.5 mol of SiO2?
The answer is 50 moles SiO2.
How many moles of HF are needed to react with 0.220 mol of Na2SiO3?
The gram molecular mass of HF is 20.01. Therefore, 0.589 mole has a mass of 11.79 grams and is sufficient to form 0.589 mole of sodium fluoride* when sodium is present in excess. The gram molecular mass of sodium fluoride is 41.99, so that 0.589 grams of it has a mass of 24.7 grams, to the justified number of significant digits. __________________________ The formula unit of both hydrogen and sodium fluorides contains a single fluorine atom.
How many grams 3 of HF?
60
How many moles of HF Ka6.8104 must be present in 0.220dm3 to form a solution with a pH of 2.60?
An 0.010 M HF solution gives pH = 2.6, so 0.0022 molesare present in 0.22 L
How many grams are In 3 of HF?
60 g
How many grams are 4.5 moles of NH3?
Here is the solution,for 1mole NH3 or ammonia,N: 14.0067 g/mol x 1H: 1.00794 g/mol x 3So approximately it is--> 17.03052 g/mol)Now multiply this into 4.5 for 4.5 moles of ammonia, --> 4.5x17.03052 =76.64g
In the reaction sn plus 2hf -- snf2 plus h2 What is the maximum amount of snf2 that can be produced when 0.480 moles of sn are mixed with 0.720 moles of hf?
0.36 moles of SnF2
How many lone electrons does HF have in a Lewis structure?
3
How many moles of CuNO32 are produced when 3 moles of Cu react?
The answer is 3 moles of Cu)NO3)2..
How many moles of hydrogen atoms are contained in 3 moles of ammonia?
NH3 is balanced at 1:3, so in 3 moles NH3 there are 3*3 = 9 moles H atoms
How many moles of Cu(NO3)2 are produced when 3 moles Cu react?
When 3 moles Cu react 3 moles of copper nitrate are obtained.
How many moles are there in 54 gram of water?
The answer is 3 moles.
