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
kvasek [131]
3 years ago
6

I know how to solve it with D=M/V and M1V1 however the answer isn’t correct. Help me please

Chemistry
1 answer:
lara31 [8.8K]3 years ago
8 0

Answer:

23.28 g of O2.

Explanation:

We'll begin by calculating the mass of hexane. This can obtain as follow:

Volume of hexane = 10 mL

Density of hexane = 0.66 g/mL

Mass of hexane =?

Density = mass /volume

0.66 = mass of hexane /10

Cross multiply

Mass of hexane = 0.66 x 10

Mass of hexane = 6.6 g

Next, we shall write the balanced equation for the reaction. This is given below:

2C6H14 + 19O2 —> 12CO2 + 14H2O

Next, we shall determine the masses of C6H14 and O2 that reacted from the balanced equation. This can be obtained as follow:

Molar mass of C6H14 = (12.01x6) + (1.008 x 14)

= 72.06 + 14.112

= 86.172 g/mol

Mass of C6H14 from the balanced equation = 2 x 86.172 = 172.344 g

Molar mass of O2 = 16x2 = 32 g/mol

Mass of O2 from the balanced equation = 19 x 32 = 608 g

From the balanced equation above,

172.344 g of C6H14 reacted with 608 g of O2.

Finally, we shall determine the mass of O2 needed to react with 10 mL (i.e 6.6 g) of hexane, C6H14. This can be obtained as follow:

From the balanced equation above,

172.344 g of C6H14 reacted with 608 g of O2.

Therefore, 6.6 g of C6H14 will react with = (6.6 x 608)/172.344 = 23.28 g of O2.

Therefore, 23.28 g of O2 is needed for the reaction.

You might be interested in
Which layer of soil in the diagram contains clay and other particles of rock but little humus ?
Ahat [919]
Im thinking a horizon 
4 0
3 years ago
Read 2 more answers
A liquid-fueled rocket engine has two liquids, usually called the fuel and the oxidizer. Which two liquids are most commonly use
hammer [34]

Answer:

A liquid-fueled rocket has two liquids (liquids are good because of the density, they need less space than a gas to be stored), such that these liquids are called the fuel and the oxidizer.

These liquids are injected into a system that leads to a combustion chamber, where the liquids are mixed (we need to mix the fuel with the oxidizer to enable the combustion of the fuel) and burned to produce thrust.

Some common examples of oxidizers are liquid oxygen, which may be combined with fuels like liquid hydrogen, liquid methane, kerosene and hydrazine.

Other oxidizers are liquid fluorine (which also can be combined with the fuels liquid hydrogen and hydrazine), nitrogen tetroxide (which can be combined whit kerosene, hydrazine and other fuels) and FLOX-70, which can only be combined with kerosene.

The "most commonly used" may depend on the country and the type of liquid propellant ( petroleum, cryogens, and hypergols)

Such that the most common oxidizer may be liquid oxygen, and the most common fuel the kerosene.

8 0
3 years ago
True or false a solid has a constant shape and volume
dusya [7]
The answer you are looking for is True
8 0
2 years ago
A student places a beaker on a hot plate. To the beaker, he adds a clear liquid and a white powder. The mixture instantly begins
Elenna [48]
True, because if it wasn't a chemical reaction it would have proceeded to stay the same. but it begins to bubble.
sorry if this isn't the best answer I'm trying my best.
7 0
3 years ago
Read 2 more answers
What is 1 item that is a compound?<br><br>Give an example of how the 1 item is a compound :D
spayn [35]

Water

Water is a compound because it is made from more than one kind of element (oxygen and hydrogen).

3 0
3 years ago
Other questions:
  • Which of the following shows the correct sequence of what happens to the water molecules in an ice cube when it is removed from
    15·2 answers
  • Calculate the ph of a solution resulting from the titration of 30.00 ml of 0.055 m hno3 with 40.00 ml of 0.026 m naoh
    8·1 answer
  • How many atoms are in 36 mol Na?
    14·1 answer
  • Methionine, ch3sch2ch2ch(nh2)co2h, is an amino acid found in proteins. what is the hybridization type of each carbon, oxygen, th
    7·1 answer
  • Does anyone have any information about "trititanium pentoxide" or "titanium oxide"? ​
    13·1 answer
  • In the lab you react 2.0 g of Na2CO3 with enough CaCl2. According to the reaction Na2CO3 + CaCl2 -&gt; CaCO3 + 2NaCl How much Ca
    6·1 answer
  • Which conditions suggest that a bond will be ionic
    9·2 answers
  • HELLLPP QUICK WILL MARK BRAINLIEST
    5·2 answers
  • Periodic table the first row of elements fits in the period blank after the element blank the second row of elements fits in per
    13·1 answer
  • n-Butane fuel (C4H10) is burned with the stoichiometric amount of air. Determine the mass fraction of each product. Also, calcul
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!