Chemistry, 12.10.2019 19:10 jdchacon117

A5.00 l air sample has a pressure of 107 kpa at a temperature of -50.0 c. if the temperature is raised to 102 c and the volume expands to 7.00 l, what will the new pressure be

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Answer from: dommalb

You have to use the combined gas law (P₁V₁/T₁=P₂V₂/T₂) and solve for P₂ to get P₂=P₁V₁T₂/T₁V₂.

You need to convert all of the temperature values into terms of Kelvin so -50°C turns into 223K and 102°C turns to 375K. After you make that conversion you can just plug in all of the values into the idea gas law and you should get P₂=228.5kpa.

I hope this helps. Let me know if anything is unclear.

Answer from: krlx

The new pressure would be 128.5 kPa

Explanation:

We need to use the combined gas law to solve this problem:

$\frac{P_{1}V_{1} }{T_{1}}=\frac{P_{2}V_{2} }{T_{2}}$

But before using this equation we must convert °C into K.

-50.0°C = 223.16 K102 °C = 375.16 K

Then we put the data in the equation and solve for P₂:

$\frac{107kPa*5.00L}{223.16K}= \frac{P_{2}*7.00L}{375.16K} \\$

$P_{2}=128.5kPa$

Answer from: Quest

what is the general relationship between a galaxy's distance from earth and its speed?

the answer is:

the farther away a galaxy is from us, the faster it is moving away from us.

Answer from: Quest

explanation:

metals have excess of electrons whereas non-metals have deficiency of electrons. thus, in order to gain stability metals easily donate their electrons to the non-metals.

for example, electronic configuration of sodium is $1s^{2}2s^{2}2p^{6}3s^{1}$ and electronic configuration of phosphorous is $1s^{2}2s^{2}2p^{6}3s^{2}3p^{3}$ .

when a phosphorous atom and sodium atom combine together then sodium will donate is extra one electron to the phosphorous atom. as a result there will be formation of ionic bond between sodium and phosphorous.

the reaction will be as follows.

$3na + p \rightarrow na_{3}p$

there, are three sodium sodium atoms and each of them will donate its one extra electron to phosphorous atom. thus, the sub-shell of phosphorous gets completely filled.

thus, we can conclude that electrons are transferred from atoms of sodium to atoms of phosphorous. this transfer makes the sodium atoms donate one electron and the phosphorous atoms to gain one electron. as a result, the sodium and phosphorus atoms strongly attract each other.

Electrons are transferred from atoms of to atoms of this transfer makes the sodium atoms and the

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A5.00 l air sample has a pressure of 107 kpa at a temperature of -50.0 c. if the temperature is rais...

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