Chemistry, 12.02.2021 02:40 kellypechacekoyc1b3

_NaF + _Br2 →_NaBr + _F2

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Answer from: conyabrew82

2NaF + 1Br2 -> 2NaBr + 1F2

Explanation:

2NaF + 1Br2 -> 2NaBr + 1F2

I simply looked at both the left side and right side and saw there was only 1 F on the left side while there were 2 on the right side.

This means we have to make the left side have 2 F by multiplying NaF by 2.

However, this means there are now 2 Na as well. Going back to the right side, I multiplied NaBr by 2 so that there are 2 Na on both sides.

Now there are 2 Br on the right side. Checking back to the left side, there are also 2 Br, meaning this equation is now balanced.

Answer from: Quest

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

Answer from: Quest

answer : (a) volume of the gas = 8.67 × $10^{-3}$ l

(b) second virial coefficient b = -1.21226 l/mole

solution : given, t = 300k

p = 20atm

z = 0.86

n = 8.2 mmoles = 8.2 × $10^{-3}$ moles

r = 0.082 l atm/k/mol

find, (a) volume of gas and (b) second virial coefficient b at 300k.

formula used : $z=\frac{pv}{nrt}$

and $z=1+\frac{b}{v}$

(a) $z=\frac{pv}{nrt}$

$v=\frac{znrt}{p}$

= $\frac{0.86\times 8.2\times[tex]10^{-3}$ \times 0.082\times 300}{20}[/tex]

= 8.67 × $10^{-3}$ l

(b) $z=1+\frac{b}{v}$

$b=(z-1)v$

= (0.00867-1) × 8.659

= - 8.5839 l/mole

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_NaF + _Br2 →_NaBr + _F2...

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