Answer:
a) 2CH4(g) + S8(s) → 2CS2(l) + 4H2S(g)
b) <u>4.24 moles CS2</u>
<u>c) 8.48 moles H2S</u>
Explanation:
Step 1: The unbalanced equation
CH4(g) + S8(s) → CS2(l) + H2S(g)
(a) Balance the equation. (Use the lowest possible coefficients. Include states-of-matter under the given conditions in your answe.)
2CH4(g) + S8(s) → 2CS2(l) + 4H2S(g)
(b) Calculate the moles CS2 produced when 2.12 mol S8 is used.
For 2 moles CH4 we need 1 mol S8 to produce 2 moles CS2 and 4 moles H2S
For 2.12 moles S8 we'll have 2*2.12 = <u>4.24 moles CS2</u>
(c) How many moles H2S are produced?
For 2 moles CH4 we need 1 mol S8 to produce 2 moles CS2 and 4 moles H2S
For 2.12 moles S8 we'll have 4*2.12 = <u>8.48 moles H2S</u>
Answer:
1026.88 kilocalories are released by the combustion of 1.50 mol of glucose
Explanation:
First we have to calculate the amount in grams in 1.5 moles of glucose by using formula
Molecular mass of glucose is 180.156 g/mol
Mass in grams = Molarity x Molecular mass
=1.50 moles x 180.156 g/mol
= 270.23 g
Now we will calculate the amount of energy released
Energy released by 1 gram of glucose = 3.8 Kcal
Energy released by 270.23 gram of glucose = 3.8 x 270.23 Kcal
= 1026.88 Kcal
1026.88 kilocalories are released by the combustion of 1.50 mol of glucose
Answer:
Chromosomes help ensure that DNA is replicated and distributed appropriately during cell division.
Explanation: