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Marina CMI [18]
3 years ago
6

At standard temperature, a gas has a volume of 275 mL. The temperature is then increased to

Chemistry
1 answer:
ratelena [41]3 years ago
5 0

Explanation:

So if V œ T, then V = <em>kT</em><em> </em><em>;</em><em> </em><em>if</em><em> </em><em> </em><em>we</em><em> </em><em>solve</em><em> </em><em>for</em><em> </em><em>k</em><em> </em><em>under</em><em> </em><em>different</em><em> </em><em>conditions</em><em> </em><em>of</em><em> </em><em>volume</em><em> </em><em>and</em><em> </em><em>temperature</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

<em>\frac{v1}{t1}  =  \frac{v2}{t2}</em>

<em>temperature</em><em> </em><em>is</em><em> </em><em>measured</em><em> </em><em>in</em><em> </em><em>degrees</em><em> </em><em>Kelvin</em><em>.</em>

<em>And</em>

<em>v2  =  \frac{v1}{t1}  \times t2 =  \frac{275 . ml}{298 \:  . \: k } \times 403 \: . \: k  = ?</em>

<em>?</em><em>mL</em>

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2 The substance has a mass of 0.50 kg.
katen-ka-za [31]

Answer:

68000J/kg

Explanation:

Given parameters:

 Mass of the substance  = 0.5kg

 Quantity of heat transferred to the body  = 34000J

 

Unknown:

Specific latent heat of fusion = ?

Solution:

The specific latent heat is usually involve in phase changes;

  H  = mL

H is the quantity of heat supplied

m is the mass

L is the specific latent heat

 Insert the parameters and solve;

     34000 = 0.5 x L

         L  = \frac{34000}{0.5}   = 68000J/kg

5 0
3 years ago
Dehydration of 2-methyl-2-pentanol forms one major and one minor organic product. Draw the structures of the two organic product
Korvikt [17]

Answer:

The major product is 2-methyl-2-pentene [ CH₃-CH₂-CH=C(CH₃)₂ ] and a minor product 2-methyl-1-pentene [ CH₃-CH₂-CH₂-C(CH₃)=CH₂ ].

Explanation:

Dehydration reaction is a reaction in which a molecule loses a water molecule in the presence of a dehydrating agent like sulfuric acid (H₂SO₄).

<u>Dehydration reaction of 2-methyl-2-pentanol</u> gives a major product 2-methyl-2-pentene and a minor product 2-methyl-1-pentene.

CH₃-CH₂-CH₂-C(CH₃)₂-OH (2-methyl-2-pentanol)→ CH₃-CH₂-CH=C(CH₃)₂ (2-methyl-2-pentene, major) + CH₃-CH₂-CH₂-C(CH₃)=CH₂ (2-methyl-1-pentene, minor)

<u>Since more substituted alkene is more stable than the less substituted alkene. So, the trisubstituted alkene, 2-methyl-2-pentene is more stable than the disubstituted alkene, 2-methyl-1-pentene.</u>

<u>Therefore, the trisubstituted alkene, 2-methyl-2-pentene is the major product and the disubstituted alkene, 2-methyl-1-pentene is the minor product.</u>

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3 years ago
How many moles is 2.80 x 10^24 atoms of silicon
neonofarm [45]
The answer that i found is 4.650
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4 years ago
If the density of water is 1g/cm3 what is its specific gravity
MakcuM [25]

Answer:

Specific gravity is the density of asubstance divided by the density of water. Since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density(but without any units).

8 0
3 years ago
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How many mole of H2 will be produced if 0.500 grams of magnesium is reacted with 10.00mL of 2.0 M HCl?
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Yes, you're right the answer is 0,02 moles.
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