Answer:
84.27 g
Explanation:
<em>How many grams of hydrogen are in 10.45 moles of C₃H₈?</em>
Step 1: Calculate the moles of atoms of hydrogen
The molar ratio of C₃H₈ to H is 1:8.
10.45 mol C₃H₈ × 8 mol H/ 1mol C₃H₈ = 83.60 mol H
Step 2: Calculate the mass corresponding to 83.60 moles of hydrogen
The molar mass of hydrogen is 1.008 g/mol.
83.60 mol × 1.008 g/mol = 84.27 g
Answer:
You have to apply the base to an acid burn and vice versa.
Explanation:
Answer:
scientists are uncertain of how long the resources will last.
Explanation:
It is hard to estimate how long certain natural resources will last because they are dependent upon the rate of consumption and other factors. There are many fields of studies going into alternative energy. Since the technology needed for some of these ideas will take time to be developed, alternative sources of energy must be found before the resources we already have run out.
Answer:
The ΔH° for the following reaction is -794 kJ, hence exothermic reaction,
Explanation:
ΔH° = ?
We are given with:
ΔH° =
(Energies required to break bonds on reactant side) - (Energies released on formation of bonds on product side)
endothermic reaction
exothermic reaction
The ΔH° for the following reaction is -794 kJ, hence exothermic reaction,
