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Soloha48 [4]
4 years ago
15

Fill in the coefficients that will balance the following reaction: C3H7OH + O2 → CO2 + H2O

Chemistry
1 answer:
shtirl [24]4 years ago
7 0

Answer:

the correct way to do this would be

Explanation:

2 C3H7OH + 9 O2 -> 6 CO2 + 8 H2O

6 C -> 6 C

now heres where it got tricky becasue theres two H's

H 7 * 2 + 7 H = 21 H -> 21 H

20 O -> 20 O

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From this list, select the element that forms π bonds most readily. from this list, select the element that forms bonds most rea
Finger [1]

Nonmetals which are located in the second row form pi bonds more easily than the elements situated in the third row and below. Actually there are no compounds or molecules known that forms covalent bonds to the noble gas Ne and Ar. Hence the other second row element which is Carbon, is the element that forms pi bonds most readily.

 

Answer:

<span>C</span>

3 0
3 years ago
A sample of gas has a mass of 827 mg . Its volume is 0.270 L at a temperature of 88 ∘ C and a pressure of 975 mmHg . Find its mo
avanturin [10]

Steps:

Mw = w * R * T / p * V

T = 88 + 273 => 361 K

p = 975 mmHg in atm :

1 atm  = 760 mmHg

975 mmg / 760 mmHg =>  1.28 atm

Therefore:

= 0.827 * 0.0821 * 361 /  1.28 * 0.270

=  24.51 / 0.3456

molar mass =  70.92 g/mol



7 0
3 years ago
Lridium-192 is an isotope of iridium and has a half-life of 73.83 days. if a laboratory experiment begins with 100 grams of irid
fiasKO [112]
Radioactive material undergoes first order dissociation kinetics.

For 1st order system,
k = 0.693 / t1/2
where, t 1/2 = half-life of the radioactive disintegration process.

Given that, t 1/2  = <span>73.83 days
Therefore, k = 0.009386 day-1

Also, for 1st order reaction,
k = </span>\frac{2.303}{t} log \frac{Co}{Ct}

Given that, Co = initial concentration of <span>Iridium-192 = 100 g

Therefore, </span>0.009386 = \frac{2.303}{t} log \frac{100}{Ct}

On rearranging we get, Ct = 100 (0.990656)^{t}

Answer: Ct = 100 (0.990656)^{t} equation approximates the amount of Iridium-192 present after t days
8 0
3 years ago
Which of the following is the best name for NO3?
ANTONII [103]
The best name for NO3 is Nitrogen Trioxide, it is very aggressive and corrosive. Hope this helped! Brainliest is always appreciated!
3 0
4 years ago
A 64.0 ml volume of 0.25 m hbr is titrated with 0.50 m koh. calculate the ph after addition of 32.0 ml of koh at 25 ∘c.
aleksley [76]
Hello!

The reaction between HBr and KOH is the following:

HBr+KOH→H₂O + KBr

To calculate the amount of HBr left after addition of KOH, you'll use the following equations:

HBr_f=HBr_i-KOH=([HBr]*vHBr)-([KOH]*vKOH) \\  \\ HBr_f=(0,25M*0,64L)-(0,5M*0,32L)=0 mol HBr

That means that after the addition of 32 mL of KOH, there is no HBr left in the solution and the pH should be neutral, close to 7. 

Have a nice day!
3 0
3 years ago
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