False. Eyeglasses do not cover all around the eye however safety goggles do
Answer:
Yes
Explanation:
It is frequently quoted that upwards of 80% of our taste is made up by smell. So if you plug your nose and cover your eyes, the taste between an apple and onion should be indistinguishable. The logic makes sense. ... All potato chip flavors taste the same.
You can determine the limiting reactant and the percentaje yield as follow.
1) State the equation that represents the chemical reaction
N2 (g) + 3H2 (g) → 2NH3 (g)
molar ratios: 1 mol N2 : 3 mol H2 : 2 mol NH3
2) Convert the two masses to moles by dividing each by its molar mass
14.0 g N2 / 28 g/mol = 0.5 mol
3.15 g H2 / 2g/mol = 1.575 mol
Proportion = 0.5 mol N2 / 1.575 mol H2 = 0.317 mol N2 / mol H2
3) Given that the theoretical ratio 1 / 3 > actual proportion 0.317 , the H2 is the limiting reactant (it will be consumed and yet some moles of N2 will remain without reacting).
4) Percentage yield = actual yield * 100 / theoretical yield
Theoretical yield = [ 2 mole NH3 * 1 mole N2 ] * 0.5 mol N2 = 1 mole NH3
actual yield = 14.5 g NH3 / molar mass NH3 = 14.5 g / 17 g/mol = 0.853 mol
Percentage yield = actual yield * 100 / theoretical yield = 0.853 mol * 100 / 1 mol = 85.3%
Answer: 85.3%