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love history [14]
3 years ago
13

Write these chemicals in order starting with the one that turns into gas the easiest. Naphtha, diesel, bitumen, petrol

Chemistry
1 answer:
leonid [27]3 years ago
7 0
Naptha! hope i helped
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Which is an advantage of biomass energy?
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Given that kb for c6h5nh2 is 1.7 × 10-9 at 25 °c, what is the value of ka for c6h5nh3 at 25 °c?
lina2011 [118]

Answer: k_a for C_6H_5NH_3^+ at 25°C is 0.588\times 10^{-4}

Explanation: We are given k_b of C_6H_5NH_2 at 25°C which is 1.7\times 10^{-9}

To calculate the k_a of C_6H_5NH_3^+, we use the formula:

k_w=k_a\times k_b

k_w\text{ at }25^o=1\times 10^{-14}

Putting values in above equation, we get:

1\times 10^{-14}=k_a\times (1.7\times 10^{-9})\\k_a=0.588\times 10^{-5}

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3 years ago
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3 years ago
Calculate the number of moles of a gas if it occupies a volume of 4dm at 10atm and _200°c.
Rina8888 [55]
 The number  of moles of a gas if it occupy a volume of 4dm  at 10 atm and - 200 c   is 6.67  moles

  calculation
by use of ideal gas equation
that is PV =nRT
where  P(pressure) =  10 atm
           V( volume) =  4dm^3 = 4L
            n(number of moles) =?
             R(gas constant) = 0.0821 L.atm/mol.K
              T = -200  +273 =  73 K

make n the  formula  of  the subject  n = PV/RT

n is therefore =  (10 atm x 4l)/(0.0821 L.atm/mol.K  x 73 K)  =  6.67 moles
5 0
2 years ago
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