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
balu736 [363]
3 years ago
10

QUICK PLEASE HELP!!!during a combustion reaction, 5.00 grams of oxygen reacted with 5.00 grams of CH4.

Chemistry
1 answer:
stealth61 [152]3 years ago
6 0
The balanced chemical reaction is:

CH4 + 2O2 —> CO2 + 2H2O

You need to convert mass to moles (divide by molar mass):

CH4 moles = 5 / 16 = 0.31 mol
O2 moles = 5 / 32 = 0.16 mol

To figure out which reactant is limiting, divide the actual moles by the corresponding coefficient in the reaction:

CH4: 0.31 / 1 = 0.31
O2: 0.16 / 2 = 0.08

O2 is the lower number, so it is the limiting reactant. From the reaction we know it takes 2 moles of O2 to react with each mole of CH4. Therefore, for however many moles of O2 we actually have, half as many moles of CH4 will react. Since we have 0.16 mol of O2, only 0.08 mol of CH4 will react, leaving behind 0.31 - 0.08 = 0.23 mol of CH4.

Now convert back to mass (multiply by molar mass) to find the mass of CH4 remaining:

0.23 x 16 = 3.68g

The closest answer is B.
You might be interested in
How do you explode stuff
Svetradugi [14.3K]
Well. Depends. 
You plan on doing a school project? 
You should try baking soda and vinegar, almost everyone knows about this.
Orr you can use mentos and soda. 
Or for fun, just get a watermelon or any fruit and use rubber bands all around it until it goes BOOM! 

Hope this helps :D
8 0
3 years ago
Read 2 more answers
How many grams of iki would it take to obtain a 100 ml solution of 0.300 m iki? how many grams of iki would it take to create a
GalinKa [24]

0.300 M IKI represents the concentration which is in molarity of a potassium iodide solution. This means that for every liter of solution there are 0.300 moles of potassium iodide. Knowing that molarity is a ratio of solute to solution.

By using a conversion factor:

100 ml x (1L / 1000 mL) x (0.300 mol Kl / 1 L) x (166.0g / 1 mol Kl) = 4.98 g

Therefore, in the first conversion by simply converting the unit of volume to liter, Molarity is in L where the volume is in liters. The next step is converted in moles from volume by using molarity as a conversion factor which is similar to how density can be used to convert between volume and mass. After converting to moles it is simply used as molar mass of Kl which is obtained from periodic table to convert from mole to grams.

In order to get the grams of IKI to create a 100 mL solution of 0.600 M IKI, use the same formula as above:

100 ml x (1L / 1000 mL) x (0.600 mol Kl / 1 L) x (166.0g / 1 mol Kl) = 9.96 g

3 0
3 years ago
Deuterium is an isotope of hydrogen (H) that has:
Ghella [55]

Answer:

D2 has 1 neutron

and 1 proton

8 0
3 years ago
It is easier to determine the electron configurations for the p-block elements in periods 1, 2, and 3 than to determine the elec
andreyandreev [35.5K]

Answer:

See Explanation

Explanation:

Because you have to get through the d-block electron configurations for the rest of the p-block elements which is a hassle to do. You need to know how to account for electron stability, from which subshell to remove electrons, etc. because it is all weird for d-block.

8 0
2 years ago
Is the element Na a metal or non metal
Bond [772]

Answer:

Metal

Explanation:

Na or sodium though soft... it is a metal...

8 0
3 years ago
Other questions:
  • How do you answer this chem equation: <br><br> 836.8J=14.5g*Cm*64
    13·1 answer
  • What two elements in the sun mostly made of
    13·1 answer
  • Select the correct answer.
    10·1 answer
  • *pls hurry, will give brainlyest or whatever!!*
    7·1 answer
  • Air bags are activated when a severe impact causes a steel ball to compress a spring and electrically ignite a detonator cap. Th
    5·1 answer
  • A farmer is breeding his best livestock is and example of?
    5·1 answer
  • The phrases or terms describe different fundamental processes of nucleic acids. Classify each phrase or term as relating to repl
    5·2 answers
  • PLS HELP *10 POINTS* I WILL GIVE BRAINLIEST
    15·1 answer
  • 14. What volume (mL) of water do I need to add to 425
    7·1 answer
  • 1. Is the reaction between magnesium and oxygen in the air spontaneous?<br>​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!