How many moles are in 20g of NH3?
Dimensional analysis: (20g NH3) * (1 mole NH3 / 17.0g NH3) = 1.18 ≅ 1.2 mole NH3 (2 sig figs). (1.18 mole) * (6.022 x 1023 molecules/ 1 mole) = 7.1 x 1023 molecules.
How many molecules are in 25.5 g of ammonia?
molecules NH3 = 1.47 moles x 6.02×1023 molecules/mole = 8.9×1023 molecules of NH3 (to 2 sig.)
How many moles are in 50g of NH3?
We have 50 g of nitrogen gas here, so we need to find the number of moles of nitrogen. From here, we would produce 1.79⋅2=3.58 moles of ammonia.
How many moles are in 17g of NH3?
This means that 17g of ammonia is one mole of ammonia.
How many grams are in 2 moles of NH3?
The molecular weight of NH3 is 17. (14+1+1+1). So 1 mole of ammonia weighs 17 grams. Therefore 2 moles will weigh 34 gram.
How many moles of NH3 are in 34g of NH3?
of moles on 34 g of ammonia is 2 moles.
How many moles are in 30g of NH3?
30 g of nitrogen is 2.14 moles of N atoms, while 10 g of hydrogen is 10 moles of hydrogen atoms. Since ammonia has molecular formula NH3, we need 3X as many moles of H as N atoms, or 3 X 2.14 moles = 6.42 moles.
How many moles of ammonia are present in 51grams of ammonia?
Ammonia is NH3, nitrogen has atomic mass 14 and hydrogen has atomic mass 1, so each mole of ammonia weighs 17g. Therefore, 51g is 3 moles.
How do I calculate moles?
How to find moles?
- Measure the weight of your substance.
- Use a periodic table to find its atomic or molecular mass.
- Divide the weight by the atomic or molecular mass.
- Check your results with Omni Calculator.
How many molecules are in 32g of NH3?
molecules NH3 = 1.47 moles x 6.02×1023 molecules/mole = 8.9×1023 molecules of NH3 (to 2 sig. figs.)
How many grams are in ammonia?
1mol of nitrogen has a mass of 28.02g, while 3mol of hydrogen has a mass of 6.06g, and 2mol of ammonia has a mass of 34.08g.