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Elena L [17]
3 years ago
8

Carbon tetrachloride may be produced via the reaction between methane and chlorine gases: """CH4 (g) + 4 Cl2 (g) => CCl4 (l)

+ 4 HCl (g)"""
If this reaction generates 2.50 gallons of CCl4, how many pounds (lbs) of HCl were also generated? The
density of CCl4 is 1.5867 g/mL.

====
I do not know how to approach this question because it features 4 different types of units: gallons...pounds...grams...mililiters...

An explanation would be appreaciated
Chemistry
1 answer:
Leya [2.2K]3 years ago
8 0
I don’t know the answer but I think it would help you if you convert everything to one u n
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Fluorine is the element or atom of the greatest electronegativity. Electronegativity would increase as we move left to right of the periodic table. 

 
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3. How much energy is needed to raise 45 grams of water from 40°C to 115 °C?
Dafna1 [17]

Answer:

Q = 114349.5 J

Explanation:

Hello there!

In this case, since this a problem in which we need to calculate the total heat of the described process, it turns out convenient to calculate it in three steps; the first one, associated to the heating of the liquid water from 40 °C to 100 °C, next the vaporization of liquid water to steam at constant 100 °C and finally the heating of steam from 100 °C to 115 °C. In such a way, we calculate each heat as shown below:

Q_1=45g*4.18\frac{J}{g\°C}*(100\°C-40\°C)=11286J\\\\Q_2=45g* 2260 \frac{J}{g} =101700J\\\\Q_3=45*2.02\frac{J}{g\°C}*(115\°C-100\°C)=1363.5J

Thus, the total energy turns out to be:

Q_T=11286J+101700J+1363.5J\\\\Q_T=114349.5J

Best regards!

5 0
3 years ago
Use the scenario to answer the following question. Four scientists observed an area of land that had been cleared of all trees a
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b

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Answer:

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Explanation:

Molality -

Molarity of a substance , is the number of moles present in a Kg of solvent .

Hence , the formula for molality is given as follow -

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m = molality

s = mass of solvent in Kg ,

n = moles of solute ,

Hence , from the given information of the question,

The concentration unit which have Kg of solvent , is molality.

6 0
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