Answer:
there are 310.64 grams in 9.40×10²⁵ molecules of H₂.
Explanation:
Amount of moles of H₂= (9.6 × 10²⁵ atoms × 1 mole) ÷ 6.023 × 10²³ atoms
amount of moles of H₂ = 155.32 moles
On the other hand, molar mass is the amount of mass that a substance contains in one mole. In this case, the molar mass of H₂ is 2 .
Then the mass that 155.32 mole of compound contains is calculated as:
155.32 moles × 2 = 310.64 grams
Finally, there are 310.64 grams in 9.40×10²⁵ molecules of H₂.
Psychic experiences it the answer out of the 4
Here we have to get the amount of propane can be produced from the reaction of 1.7 moles of carbon (C).
1.7 moles of carbon will produce 0.425 moles of propane
In the reaction 8 moles of carbon is producing 2 moles of propane. Thus, mathematically,
8C → 2C₃H₈
Thus 8 moles of carbon produces 2 moles of propane
1.7 moles of carbon produces ×1.7 = 0.425 moles
Thus 1.7 moles of carbon will produce 0.425 moles of propane.
Thus the amount of propane will be prepared from the reaction of 1.7 moles of carbon is determined.
Explanation:
The question involves converting from one unit (Kilometres) to another unit (Astronomical unit)
The relationship between both units is given as;
1 Km = 6.68459e-9 Au
Kulper belt
6.5 billion km = 6.5e9 Km
1 Km = 6.68459e-9 Au
6.5e9 Km = x
Solving for x;
x = 43.45 Au
Alpha Centauri
44 trillion km = 4.4e13
1 Km = 6.68459e-9 Au
4.4e13 km = x
Solving for x;
x = 294121.83 Au
The interaction between the substances and stomata is a chemical reaction, light energy strikes at the chlorophyll molecules, whose electrons gets excited to a state of higher energy, and they come back to their state of lower energy by emission of energy, which is accepted by a chain of acceptors, and energy is generated.