(i)what mass of carbon dioxide (in kg) is produced upon the complete combustion of
18.9 l of propane (approximate contents of one 5-gallon tank)? assume that the
density of the liquid propane in the tank is 0.621 g/ml . (hint: begin by writing
a balanced equation for the combustion reaction.)
m=? kg
(ii) a 22.0 - ml sample of an unknown h3po4 solution is titrated with a 0.110 m naoh
solution. the equivalence point is reached when 18.60 ml of naoh solution is added.
what is the concentration of the unknown h3po4 solution? the neutralization reaction is as
follows:
h3po4(aq) + 3naoh(aq) > 3h2o(l) + na3po4(aq)
m=?
Solved
Show answers
More tips
- O Other Discovering the Funniest Joke Ever Told...
- F Food and Cooking How to Make Napoleon Cake: A Step-by-Step Guide...
- F Food and Cooking From Latte to Espresso: Which Coffee Drink is the Most Popular on Earth?...
- C Computers and Internet How to Set Up Internet on iPhone? Detailed Guide with Step-by-Step Instructions...
- F Family and Home How to Teach Your Child to Speak: Tips and Recommendations...
- P Philosophy Agnosticism: Opinion or Belief?...
- S Style and Beauty How to choose the best mascara for your eyelashes...
- F Food and Cooking Discover Delicious Recipes You Can Make with Ground Meat...
- C Computers and Internet Google Search Tips and Tricks: Everything You Need to Know...
- S Science and Technology Why is there no gravity on other planets?...
Answers on questions: Chemistry
- S Social Studies Under u.s. criminal law, the victim is considered to be...
- M Mathematics Which inequality describes all the solutions to 5(3-X) -2+ 6...
- M Mathematics −3√27−2√2−3√45−√18 simplify...
- C Chemistry Chemistry Grade 11: Hi, I don t know what this is, please help? CALCULATING % YIELD STEPS: 1. 2. 3. 4....
- E English 1) In three sentences, explain three features that distinguish critical listening from informational listening,...
Ответ:
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
Ответ:
A. charged particles