Answer:
0.0181 mol H
Explanation:
Step 1: Given data
Moles of water (H₂O) formed during the analysis: 0.00905 mol H₂O
Step 2: Calculate the amount (mol) H in 0.00905 mol H₂O
According to the chemical formula of water, the molar ratio of water to hydrogen is 1:2, that is, there are 2 moles of H per 1 mole of H₂O. We will use this conversion factor to calculate the moles of H in 0.00905 moles of H₂O.
0.00905 mol H₂O × (2 mol H/1 mol H₂O) = 0.0181 mol H
Answer:
the amount present 8 hours ago is Ao = 93.338 g
Explanation:
the radioactive decay is given by
A = Ao * 2^(- t/T)
where T = half-life of the substance , t= time , A= amount of substance at time t , Ao= amount of substance at time 0
therefore at t=8 hours , A=16.5 gr
Ao = A*2^(t/T) = 16.5 g * 2^(8 hours/3.20 hours) = 93.338 g
Ao = 93.338 g
Answer:
B
Explanation:
the branch of physical science that deals with the relations between heat and other forms of energy (such as mechanical, electrical, or chemical energy), and, by extension, of the relationships between all forms of energy.
Answer:
I believe it's 1,3,5-trifluoro-2,4-dimethyl-2-heptene
Explanation:
The longest chain has 7 carbons. You prioritize the alkene so you start counting from the far left and lastly, you list the substituents alphabetically.