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Tom [10]
3 years ago
15

Wally fluoride is an imaginary gaseous

Chemistry
1 answer:
mihalych1998 [28]3 years ago
7 0

Answer:

\rho =1.96\frac{g}{L}

Explanation:

Hello there!

In this case, since this imaginary gas can be modelled as an ideal gas, we can write:

PV=nRT

Which can be written in terms of density and molar mass as shown below:

\frac{P}{RT} =\frac{n}{V} \\\\\frac{P}{RT} =\frac{m}{MM*V}\\\\\frac{P*MM}{RT} =\frac{m}{V}=\rho

Thus, by computing the pressure in atmospheres, the resulting density would be:

\rho = \frac{165/760 atm * 314.2 g/mol}{0.08206\frac{atm*L}{mol*K}*425K} \\\\\rho =1.96\frac{g}{L}

Best regards!

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F. If 20.0 moles of CO2 is exhaled, how many particles of H2O is produced?
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Answer:

11 moles

Explanation:

1 mole of C12H22O11 molecules produces 12 moles of CO2 molecules and 11 moles of H2O molecules.

7 0
3 years ago
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What happens when a crystal potassium nitrate is added to a saturated solution as it cooled
coldgirl [10]
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3 0
3 years ago
A 312 g sample of a metal is heated to 277.845 °C and plunged into 200 g of water at a temperature of 11.945 °C. The final tempe
tigry1 [53]

Answer:

The specific heat capacity of the metal is 1.307 J/g °C

Explanation:

<u>Step 1:</u> Data given

mass of the metal = 312 grams

initial temperature of the metal ( before plunged in the water) = 277.845 °C

initial temperature water = 11.945 °C

Final temperature of water (and aslo the metal) = 99.062 °C

Specific heat capacity of wayer = 4.184 J/g °C

<u>Step 2:</u>  Calculate the specifi heat capacity of the metal

Loss of Heat of the Metal = Gain of Heat by the Water

Qmetal = -Qwater

m(metal) * C(metal) * ΔT(metal) = - m(water) * C(water) * ΔT(water)

with mass of metal = 312 grams

with C(metal) = TO BE DETERMINED

with ΔT (metal) = 99.062 - 277.845 = -178.783 °C

with mass of water = 200 grams

with C(water) = 4.184 J/°C * g

with ΔT (water) = 99.062 - 11.945 = 87.117 °C

312 * C(metal) * -178.783  = - 200* 4.184 * 87.117

C(metal) = -72899.51 / 55780.296 = 1.307

The specific heat capacity of the metal is 1.307 J/g °C

6 0
3 years ago
What is the density(in g/L) of a gas with a molar mass of 32.49g/mol at 2.569atm and 458K?
garri49 [273]

Answer:

2.22~g/L

Explanation:

According to the ideal gas law equation:

pV = nRT

Let's express the number of moles in terms of mass and molar mass:

pV = \frac{m}{M} RT

Let's divide both sides by volume:

p = \frac{m}{MV} RT

Notice that:

\frac{m}{V} = d

So the equation becomes:

p = \frac{dRT}{M}

Expressing density:

d = \frac{pM}{RT}

Substituting the given values:

d = \frac{2.569~atm\cdot 32.49~g/mol}{0.08206~\frac{L~atm}{mol~K}\cdot 458~K} = 2.22~g/L

7 0
4 years ago
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