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Slav-nsk [51]
3 years ago
6

Hydrogen chloride gas is shipped in a container under 5,100 mmHg of pressure that occupies 20.1 liters at 29°C. How many liters

of gas would be produced at STP? A. 1.7 x 10-5 L B.8.3 x 10-3 L C. 120 L D. 150 L
Chemistry
1 answer:
stira [4]3 years ago
5 0
The number  of  liters  of  gas  that  would  be  produced  at  stp  is  calculated  as  follows
by  use  of ideal gas  equation  calculate the number of moles used

that  is  Pv=nRT  where  n  is number of  moles
n= Pv/RT
P=5100 mm hg
R=62.36  mm  hg
T = 29+273= 302  K
V=20.1  L

n=(5100  x  20.1)/( 62.36  x 302)  =  5.4  moles

at  STP  1 mole  = 22.4 L,   what  about   5.4  moles

= 5.44  mole/1mole  x  22.4  L  =  120 L(answer  C)


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The answer to your question is 245 grams

Explanation:

Data

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Process

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molar mass = (1 x 40) + (2 x 35.5)

                   = 40 + 71

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2.- Convert the grams to moles

                       111 g of CaCl₂ -------------- 1 mol

                         x                   ---------------0.34 mol

                         x = (0.34 x 111) / 1

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3.- Calculate the total mass

                        37.74 g ------------------ 1 L

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3 0
3 years ago
1. In the investigation of an unknown alcohol, there was a positive Jones test and a negative Lucas test. What deductions may be
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Answer:

1. When observing a positive test for the jones reagent and negative for the Lucas test, it indicates that it is in the presence of a primary alcohol.

Jones reagent behaves like a strong oxidant, where it transforms the primary alcohols into carboxylic acids and the secondary alcohols into ketones. Tertiary alcohols do not react.

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Which choice has prokaryotic cells?
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In a combustion of a hydrocarbon compound, 2 reactions are happening per element:

C + O₂ → CO₂
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Thus, we can determine the amount of C and H from the masses of CO₂ and H₂O produced, respectively.

1.) Compute for the amount of C in the compound. The data you need to know are the following:
Molar mass of C = 12 g/mol
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Solution:
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Compute for the amount of H in the compound. The data you need to know are the following:
Molar mass of H = 1 g/mol
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The percent composition of pure hydrocarbon would be:
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The ratio should be a whole number. So, you multiple 4 to each of the ratios:
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106 g/mol / 53 g/mol = 2
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hi girl i also wrote this in my test today so maube i hope it is correct.

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