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Virty [35]
4 years ago
13

How could using ethanol as a fuel affect the carbon dioxide level in the atmosphere is this good or bad for the environment PLEA

SE HELP ME, IT'S FOR MY NATIONAL 5 ASSIGNMENT
Chemistry
1 answer:
d1i1m1o1n [39]4 years ago
8 0
Hey there you see ethonol i beliive is a corn based fuel and scientists are saying that it is more healthy for are invirment  but not 100% green.however this fuel is not a renewable resource it is still widely abundent because we have corn felids. but i think it is not the smartest investment because if we have a big storm or cropos wont grow anymor than we would not have cars therfore limiting transportationn  which setting a huge deppresion. gkad you asked i hads something simmilar to this on my ssvec  assignment

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How many grams of barium sulfate are produced if 25.34 mL of 0.113 M BaCl2 completely react given the reaction: BaCl2 (aq) + Na2
jeyben [28]

<u>Answer:</u> The amount of barium sulfate produced in the given reaction is 0.667 grams.

<u>Explanation:</u>

To calculate the number of moles from molarity, we use the equation:

\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}

Molarity of barium chloride = 0.113 M

Volume of barium chloride = 25.34 mL = 0.02534 L   (Conversion factor: 1 L = 1000 mL)

Putting values in above equation, we get:

0.113mol/L=\frac{\text{Moles of barium chloride}}{0.02534L}\\\\\text{Moles of barium chloride}=0.00286mol

For the given chemical reaction:

BaCl_2(aq.)+Na_2SO_4(aq.)\rightarrow BaSO_4(s)+2NaCl(aq.)

By Stoichiometry of the reaction:

1 mole of barium chloride is producing 1 mole of barium sulfate.

So, 0.00286 moles of barium chloride will produce = \frac{1}{1}\times 0.00286mol=0.00286mol of barium sulfate.

Now, to calculate the mass of barium sulfate, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Molar mass of barium sulfate = 233.38 g/mol

Moles of barium sulfate = 0.00286 moles

Putting values in above equation, we get:

0.00286mol=\frac{\text{Mass of barium sulfate}}{233.38g/mol}\\\\\text{Mass of barium sulfate}=0.667g

Hence, the amount of barium sulfate produced in the given reaction is 0.667 grams

4 0
4 years ago
You need 1.50 moles of ammonia (nh3) for a reaction at stp. what volume of ammonia must you measure? also,how many molecules of
professor190 [17]
<span>what volume of ammonia must you measure? 

1.50 moles NH3 ( 22.4 L / 1 mole ) = 33.6 L NH3 should be measured

</span><span>how many molecules of nacl are in 23.40 grams nacl

23.40 g NaCl ( 1 mol / 58.44 g) (6.022 x 10^23 molecules / 1 mol ) = 2.4113 x 10^23 molecules

Hope these answer the questions. Have a nice day.</span>
4 0
4 years ago
Carbon exists in nature as three isotopes. Given the atomic masses and relative abundance of the isotopes, what is the average a
Ivan

The most abundant carbon isotope is carbon-12.

The relative atomic mass of carbon is 12.011, which is extremely close to 12.0. This means that the masses C-13, and C-14 are practically negligible when contributing to the relative atomic mass of carbon.

the C-12 isotope makes up 98.9% of carbon atoms, C-13 makes up 1.1% of carbon atoms, and C-14 makes up just a trace of carbon atoms as they are found in nature.

6 0
3 years ago
A 15.0 mL sample of a liquid has a mass of 12.3 g. What is the density of the liquid? A. 0.820g/mL B. 1.22g/mL C. 185g/mL D. 12.
MariettaO [177]

Answer: Option A. 0.820g/mL

Explanation:

Mass = 12.3 g

Volume = 15mL

Density = Mass /volume

Density = 12.3/15 = 0.82g/mL

4 0
3 years ago
A pogo stick bounces 30 M in 10 secs what is the bouncers average speed?
DiKsa [7]
I would love to help but it is 3 or is it 3 million?
7 0
4 years ago
Read 2 more answers
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