Answer:
2 moles of N₂ will produce 4 moles of NH₃
Step-by-step explanation:
Equation of reaction
N₂ + 3H₂ → 2NH₃
The process above is the Born-Harber method of producing ammonia NH₃ industrially.
From the equation of reaction,
1 moles of N₂ will produce 2 moles of NH₃
1 moles N₂ = 2 moles NH₃
2 moles of N₂ = x moles of NH₃
x = (2*2) / 1 = 4moles of NH₃
2 moles of N₂ will produce 4 moles of NH₃
60%. You count how many total (15) and then how many got below a 90 (9) and then divide 9 by 15.
The equation to be solved is: 3 [ 2 ^ (2t - 5) ] - 4 = 10
The steps are:
1) transpose - 4=> 3 [ 2^ (2t - 5) ] = 10 + 4
2) Combine like terms => 3 [2^ (2t - 5) ] = 14
3) Divide both terms by 3 => 2^ (2t - 5) = 14 / 3
4) Take logarithms of both sides => (2t - 5) log (2) = log (14/3)
5) Divide both sides by log (2) =>
log (14/3)
2t - 5 = -------------------
log (2)
6) transpose - 5+>
log (14/3)
2t = ------------------- + 5 = 2.22 + 5
log (2)
2t = 7.22
7) divide both sides by 2 => t = 7.22 / 2 = 3.61
Answer:
Okay so all you need to know is the percentage of the hydrogen peroxide.
We know that the total solution is 400 ml and the hydrogen peroxide solution is 8ml.
8/400
Percent means out of a hundred, this can go multiple ways.
<u>Way #1, benchmarking.</u>
So 8/400 simplified is 1/50 or 2/100.
1/50 is basically 2/100.
And percent means out of a hundred so 2/100 is basically 2percent.
<u>Way #2, proportions</u>
We want to know the percentage of hydrogen/ fabric dye
If you put it in numbers int he same fraction and put “x” as the unknown 8ml hydrogen peroxide solution you’d get.
8/400 = x/100
X/100 because percent means out of a hundred.
Now solve3
Cross multiply,
800 = 400x
divide 400 on both sides
2=x
Now plug it back in the proportion.
8/400 = 2/100
If you simplify to check if they are equal then it’s correct
5x / 2 - 8 = 22
multipy through by 2:-
5x - 16 = 44
5x = 44 + 16 = 60
x = 12 Answer
