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4 years ago

A gas occupies a volume of 4.50 L at 44 kPa. What would be the new volume at 50 kPa?

Chemistry

1 answer:

oksano4ka [1.4K]4 years ago

5 0

Explanation:

P1= 44 kpa

P2= 50 kpa

V1= 4.50 L

V2= ?

P1 V1= P2 V2

44 × 4.50 = 50 × V2

198= 50 × V2

V2 = 198/ 50

V2= 3.96 L "the new volume"

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Hydrogen sulfide gas reacts with oxygen to produce sulfur dioxide gas and water according to the balance equation:

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2 mol of H2S react with 3 mol of O2

5.6 mol of H2S react with =5.6×3/2=8.4 mol of O2

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3 years ago

In an ELISA, the compound 4-chloro-1-naphthol is used because:_______

Gennadij [26K]

Answer:

a. It turns color in the presence of an enzyme that us bound to the secondary antibody.

Explanation:

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3 years ago

when a substance donates a proton during a chemical reaction, that substance can be classified as a(an) ___ ?

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Answer:

An acid

Explanation:

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4 years ago

How can you tell if a molecule is polar or nonpolar?.

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$\huge \underline\frak \red{Answer}$

1) If the arrangement is symmetrical and the arrows are of equal length the molecule is nonpolar

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3) If the arrangement is asymmetrical the molecule is polar

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2 years ago

Consider the molecules: scl2, f2, cs2, cf4, and brcl. select the choice where the bonds of the molecules are arranged in order o

elena-s [515]

The polarity of a bond depends on the difference in electronegativities of the atoms involved in bonding. Greater this difference, greater is the polarity

1) In SCl2 we have the S-Cl bond

Electronegativity values: S = 2.5, Cl = 3

Difference = 3.0 -2.5 = 0.5

2) In F2 we have the F-F bond

Electronegativity value: F = 4.0

Difference = 4.0-4.0 = 0

3) In CS2 we have the C-S bond

Electronegativity value: C = 2.5, S = 2.5

Difference = 2.5 -2.5 = 0

4) In CF4 we have the C-F bond

Electronegativity values: C = 2.5, F = 4.0

Difference = 4.0 -2.5 = 1.5

5) In BrCl we have the Br-Cl bond

Electronegativity values: Br = 2.8, Cl = 3

Difference = 3.0 -2.8 = 0.2

Therefore, the increasing order of polarity is

F2 = CS2 < BrCl < SCl2 < CF4

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3 years ago