1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
soldier1979 [14.2K]
1 year ago
7

A sample of 5.72 g of liquid 1-propanol, C, H, O, is combustod with 43.4 g of oxygen gas, Carbon dioxide and water are

Chemistry
1 answer:
bekas [8.4K]1 year ago
6 0

Answer:

2C3H8O + 9O2 ==> 6CO2 + 8H2O ... balanced equation

moles propanol = 5.26 g x 1 mol/60.1 g = 0.0875 moles

moles O2 = 31.8 g x 1 mol/31.9 g = 0.997 moles O2

Propanol is limiting based on the mol ratio in balance equation of 2 : 9

To find mass of O2 (excess reagent) left over, we will first find moles O2 used up.

moles O2 used = 0.0875 mol propanol x 9 mol O2/2 mol propanol = 0.394 moles O2 used

moles O2 left over = 0.997 mol - 0.394 mol = 0.603 mol O2 left

mass O2 left = 0.603 mol O2 x 32 g/mol = 19.3 g O2 left over

You might be interested in
From the periodic table, the number of valence electrons for most of the main group elements may be determined directly from the
11111nata11111 [884]

What is the question?


4 0
3 years ago
A cube has a height of 8 cm and a mass of 457 g. What is its density?
ZanzabumX [31]

Answer:

the answer is b,  0.89

Explanation:

A cube has a height of 8 cm and a mass of 457 g. What is its density?

a. 233,984 g/cm

b.  0.89g/cm3

c. 1.12 g/cm3

Density = mass/volume

the volume of the cube is 8X8X8=512cm3

the mass is 457 gm

the density is 457/512 = 0.889 gm/cm3

the answer is b, 0.89

3 0
2 years ago
Mendeleev arranged the known chemical elements in a table according to increasing
vesna_86 [32]
Atomic mass. Which is the number of protons and neutrons combined.
8 0
3 years ago
How many liters of hydrogen are needed to produce 34 grams NH3
polet [3.4K]
You would need 1000 liters
8 0
2 years ago
A solution is classified as a weak base. Which of these could be the pH of the solution?
Pepsi [2]

Explanation:

The pH of a weak base falls somewhere between 7 and 10.

3 0
2 years ago
Other questions:
  • What will a bowling ball that is standing still on a table do?
    12·1 answer
  • Calculate the [ OH − ] and the pH of a solution with an [ H + ] = 0.090 M at 25 °C . [ OH − ] = M pH = Calculate the [ H + ] and
    15·1 answer
  • Which of th following is true for a parallel circuit
    8·1 answer
  • With a 0.5 M solution: How many moles of NaCl would there be in 1,000 ml?
    10·2 answers
  • Saturn has spectacular rings of ____ and ____ that surrounded the planet.
    7·2 answers
  • What is the concentration of chloride ion in a 2.0 M solution of calcium chloride
    6·2 answers
  • The center part of an atom is called the
    10·1 answer
  • What is the molar mass of Al(NO3)3 · 3H2O?
    7·1 answer
  • the ph of a naoh solution is 12.05. what is the concentration of [oh-] of the naoh solution? express your answer in standard not
    8·2 answers
  • Which energy source has been developed and improved by chemists?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!