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
IRINA_888 [86]
3 years ago
5

When a mixture of 12.0 g of acetylene (c2h2 and 12.0 g of oxygen (o2 is ignited, the resultant combustion reaction produces co2

and h2o?
Chemistry
2 answers:
Sphinxa [80]3 years ago
5 0

Answer:

Number of moles of CO₂ formed = 0.375 moles

number of moles of water formed = 0.75 moles

Explanation:

Acetylene reacts with oxygen according to the following chemical reaction:

2C_{2}H_{2}  + 5O_{2} = 4CO_{2}  + 2H_{2} O

The molar ratios are :

C₂H₂ = 2

O₂     = 5

CO₂  = 4

H₂O  = 2

The basis is to find a limiting reagent which is given by the lowest number of moles.

The molar mass of acetylene is = 26.04

number of moles of acetylene   = \frac{mass}{molar mass} \\ = \frac{12}{26.04} \\= 0.461 moles

Number of moles of O₂ = \frac{12}{32} \\= 0.375 moles

Number of moles of CO₂ formed = 0.375 moles

number of moles of water formed (2 x 0.375) = 0.75 moles

valina [46]3 years ago
3 0
The product of the complete combustion of any fuel (in this case, acetylene) are indeed water and carbon dioxide. 
Balancing the combustion reaction,
                           C2H2 +(5/2) O2 --> 2CO2 + H2O
The number of moles of C2H2 will be,
                        (12 g) x (1 mole/26 g) = 6/13 mole
Then, the number of moles of O2 is,
                         (12 g) x (1 mole/32 g) = 3/8 mole
Therefore the limiting reaction is the O2. Getting the amount of CO2 and H2O produced from balancing,
             CO2 = (3/8 moles) x (2 moles CO2/ 5/2 mole O2)(44 g/ 1 mole) = 52.8 g
             H2O = (3/8 moles) x (1 mole / 5/2 mole O2)(18 g / 1 mole) = 2.7 g
You might be interested in
50.0 g of NaNO3 are dissolved into enough water to make 250 mL of solution. What is the molarity of this solution?
d1i1m1o1n [39]

Answer:

2.35 M

Explanation:

Molarity is mol/L of solution. We have to convert the g to mol and the mL to L. G to mol uses the molar mass of the compound. The molar mass of NaNO₃ is 85.00g/mol.

50.0gNaNO3*\frac{1molNaNO3}{85.00gNaNO3} = 0.588molNaNO3

Then you have to convert mL to L.

250mL*\frac{1L}{1000mL} = 0.250L

Now divide the mol by the L.

\frac{0.588mol NaNO3}{0.250L} = 2.352 M

Round to the smallest number of significant figures = 2.35M

7 0
3 years ago
What is density? A) mass divided by volume B) volume divided by mass
wolverine [178]

Answer:

A) mass divided by volume

Explanation:

7 0
3 years ago
Read 2 more answers
Special characteristics of metals, like being shiny, are called A Descriptions B Phrases C Qualities D Properties
slega [8]
Answer:
d properties
i took a test on this before
8 0
3 years ago
Read 2 more answers
What would be the formula for an alkane which contains 30 hydrogen atoms? C__H30 16 18 14 15
Sladkaya [172]
The formula would be C14H30.
6 0
3 years ago
Read 2 more answers
The mass percentage of hydrochloric acid within a solution is 28.00%28.00% . Given that the density of this solution is 1.1411.1
sashaice [31]

Answer:

8.76M

Explanation:

Given that

Mass from the density = 1141g

According to the given situation the computation of molarity of the solution is shown below:-

we will took HCL solution which is 1000mL

HCl = 28% by mass

So,

Mass of HCl in 1-litre solution is

= \frac{28}{100} \times 1141

Which gives the result of molar mass HCI is

= 319.48g /mol

Now,

Molarity is

= \frac{319.48}{36.45}

Which gives results of molarity is

= 8.76M

8 0
3 years ago
Other questions:
  • How many grams of glucose are in 11.5 moles?
    10·1 answer
  • Which statement best describes scientific laws? Scientific laws are facts that describe natural events. Scientific laws are theo
    12·2 answers
  • Pleaseeeeeee hlepThe half-life of cobalt-60 is 5.26 years. After 10.52 years, 5 grams of a 20-gram sample will remain.
    8·1 answer
  • What makes an element inert?
    12·1 answer
  • A cup of sugar has a volume of 237 ml. What is the mass of the сup of sugar if the density is 1.59 g/mL?
    7·1 answer
  • Compare the evaporation of a contained liquid with that of an uncontained liquid.
    12·1 answer
  • what is the molarity of an HCI solution if 25.0 ml of 0.185 M NaOH is required to neutralize 0.0200 L of HCI?​
    5·1 answer
  • Adiabatic process is a process in which _ is constant (a) temperature (b)volume (c)pressure (d) heat
    7·1 answer
  • Which element has a more protons in it Boron (B) or Neon (Ne)?
    5·2 answers
  • At Christmas time, I like to burn scented candles that smell like sugar cookies. How does the candle in one location change the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!