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Grab yourself a Periodic Table and look up the atomic masses of nitrogen and hydrogen, which are the constituent elements of NH3 (which is ammonia.) Nitrogen is 14, and hydrogen is 1. Now look at the formula. It says you have 1 nitrogen and 3 hydrogens. Add it up: 14+1+1+1=17, for a total "molar mass" of 17 grams per mole. Now use the concept of percent (part divided by total) to get your percent composition by mass. 14/17=0.82, 82% nitrogen. 3/17=0.18, so 18% hydrogen. You can do that now for any compound!
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What is the molecular mass of ammonia NH3?
17 g/mol is the molecular mass of ammonia NH3.
Calculate mass in grams of 2.110 moles of NH3?
You can find the mass of one mole of each of the individual elements by looking at the mass numbers.So, 1 mole of:N=14gH=1gsince there are 3 H's the total mass of 1 mole NH3 is 14+3=17gYou then multiply the actual number of moles by the g's per mole:=> 17x2.11=35.87g
What is the mass of 1.75 1024 molecules of NH3?
74.168 u NH3Determine relative mass of NH3 molecule: (1 x 14.007 u N) + (3 x 1.008 u H) = 42.357 uMultiply the number of molecules of NH3 by its relative molecular mass.1.751024 molecules NH3 x (42.357 u NH3)/(1 molecule NH3) = 74.168 u NH3
What is mass of ammonia?
The molecular mass of ammonia (NH3) is 18.03 grams/mole
What is the molar mass of amonia gas?
Molar mass of NH3 = 17.03052g/mol
The percent by mass of hydrogen in NH3 is equal to?
3/17x100
What is the equation used to calculate percent by mass?
Percent by mass = (100) times (mass of the ingredient of interest) divided by (mass of the whole mixture)
What is the molecular mass of ammonia NH3?
17 g/mol is the molecular mass of ammonia NH3.
How do you calculate the mass in grams of 4.2 x 1025 NH3?
Molecules of ammonia? Will assume so. 4.2 X 1025 molecules NH3 (1 mole NH3/6.022 X 1023)(17.034 grams/1 mole NH3) = 1188 grams of ammonia ===================( could call it 1200 grams NH3 for significant figure correctness )
How many moles of NH3 is in 23g of NH3?
Atomic mass of NH3 is 17.So there are 1.353mol.
Calculate mass in grams of 2.110 moles of NH3?
You can find the mass of one mole of each of the individual elements by looking at the mass numbers.So, 1 mole of:N=14gH=1gsince there are 3 H's the total mass of 1 mole NH3 is 14+3=17gYou then multiply the actual number of moles by the g's per mole:=> 17x2.11=35.87g
Calculate the maximum mass of ammonia that could be made from 1000g of nitrogen?
moles of N2 = 1000/28= 35.7 moles moles of NH3 = 2 x 35.7= 71.4 moles mass of NH3 = 71.4 x 17 (14+1+1+1) = 1214g
How do you calculate the percent chloride with the volhard method?
(mass /volume)x100
What is the mass of 1.75 1024 molecules of NH3?
74.168 u NH3Determine relative mass of NH3 molecule: (1 x 14.007 u N) + (3 x 1.008 u H) = 42.357 uMultiply the number of molecules of NH3 by its relative molecular mass.1.751024 molecules NH3 x (42.357 u NH3)/(1 molecule NH3) = 74.168 u NH3
What is the molecular mass of NH3 when The atomic mass of N is 1401 gmole and the atomic mass of H is 1008 gmole?
Molecular mass = sum of all atoms masses = 1(molN/mol NH3)*14.01(g/mol N) + 3(molH/mol NH3)*1.008(g/mol H) = 17.03 g/mol NH3
The 1st isotope occurs 75.47 percent of the time and has a mass of 248.7 amu the 2nd isotope occurs 24.53 percent of the time and has a mass of 249.4 amu calculate the average atomic mass?
248.90
What is mass of ammonia?
The molecular mass of ammonia (NH3) is 18.03 grams/mole
