Because they are very close gusses that people make that are mostly right , and they are right but not proven
Answer:
D.The space between the water particles becomes much larger.
Explanation:
Answer:
The answer to your question is:
a) 35211 g of CO2
b) Molarity = 0.03
Explanation:
a)
mass of CO2 = ?
Volume = 18.9 L
density = 0.621 g/ml
Reaction
C₃H₈ + 5O₂ ⇒ 3CO₂ + 4H₂O
Density = mass / volume
mass = density x volume
mass = 0.621 x 18900
mass = 11737 g
MW of C3H8 = 44 g
MW of 3CO2 = 132 g
44 g of C3H8 ------------------- 132 g of CO2
11737 g of C3H8 -------------------- x
x = (11737 x 132) / 44
x = 35211 g of CO2
b) H3PO4(aq) + 3NaOH(aq) ---> 3H2O(l) + Na3PO4(aq)
22 ml 18.6 ml
[?] 0.11 M
Calculate moles of NaOH
n = M x V
n = 0.11 x 0.0186
n = 0.0020 moles
From the balance reaction
1 mol of H3PO4 ------------------ 3 moles of NaOH
x ------------------ 0.0020 moles
x = (0.002 x 1) / 3
x = 0.0007 mol of H3PO4
Molarity = 0.0007 / 0.022
Molarity = 0.03
What you are doing is correct just continue counting each hydrogen atom
Answer:
1587.2 g
Explanation:
First of all, we need to calculate the number of moles of oxygen. We can do it by using the equation of state for an ideal gas:
where in this case:
is the pressure of the gas
V = 640 L is the volume
n is the number of moles
is the gas constant
is the absolute temperature of the gas
Solving for n, we find:
Now we can find the mass of the oxygen by using the formula:
where:
n = 49.6 mol is the number of moles
M = 32 g/mol is the molar mass of molecular oxygen
Therefore, substituting,
