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Kitty [74]
3 years ago
6

An alkane group has a formula of CxH6, determine the value of x​

Chemistry
2 answers:
kolezko [41]3 years ago
6 0

Answer:

x=2

Explanation:

Because alkanes have a general formula of CnH(2n+2).

We known that 2n+2=6, so we solve for n.

2n+2=6

2n=4

n=2

Thus, there are 2 carbon atoms.

deff fn [24]3 years ago
3 0

Answer:

x = 2

Explanation:

General formula for alkanes

C _{n}H _{2n + 2}

since H = 6

2n + 2 = 6 \\ 2n = 4 \\ n = 2 \\ since \: x = n\\   \therefore \: x = 2

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\\ \tt\hookrightarrow 2C_4H_10+13O_2\longrightarrow 8CO_2+10H_2O

  • 13mol of O_2 reacts with 2mols of C_4H_10.
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No of moles:-

\\ \tt\hookrightarrow \dfrac{Given\:mass}{Molar\:mass}

\\ \tt\hookrightarrow \dfrac{400}{58}

\\ \tt\hookrightarrow 6.89mol

Now

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\\ \tt\hookrightarrow 7.5(6.89)=51.6mol

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If a laser light is compose of photons each with an energy of 4.58 × 10−19 J, what is the photon energy of this light in units o
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Formula used :

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Now put all the given values in the above formula, we get:

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