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4 years ago

Cu(NO3)2 + Na2CO3 → CuCO3 + 2NaNO3

Chemistry

1 answer:

Salsk061 [2.6K]4 years ago

6 0

Explanation:

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Is the haber process for the industrial synthesis of ammonia spontaneous or nonspontaneous under standard conditions at 25 ∘c? n

Ostrovityanka [42]

The industrial synthesis of ammonia is spontaneous.

to to prove this one calculate the gibbs free energy(delta G)

= delta G = Delta H -T delta s

delta H = -92.2 kj in joules -92.2 x1000 =-92200j
delta s = -199j/k
T= 25+273= 298k

delta G is therefore= -92200-298(-199)=-32898j
since delta G is negative the reaction is therefore spontaneous

6 0

4 years ago

How do electrons of an element determine that element's reactivity?

Nezavi [6.7K]

Answer:

The number of electrons in the outermost shell of an atom determines its reactivity. Noble gases have low reactivity because they have full electron shells. Halogens are highly reactive because they readily gain an electron to fill their outermost shell.

Explanation:

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3 years ago

Calculate the pH of a C6H5OH phenol solution, whose hydronium ion concentration [H3O +] is 1.8 x 10e-5 M

Sidana [21]

Answer: The pH of phenol solution is 4.7

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydronium ion concentration.

$pH=-\log [H_3O^+]$

Given : $[H_3O^+]=1.8\times 10^{-5}M$

Putting in the values we get

$pH=-\log[1.8\times 10^{-5}M]$

$pH=4.7$

Thus pH of phenol solution is 4.7

5 0

4 years ago

Sulfonation of naphthalene, C10H8, results in two products. One product is kinetically favored and predominates in the beginning

Marrrta [24]

Explanation:

The sulfonation of the naphthalene yield 2 products under different conditions:

When the reaction is carried at 80 °C, 1-naphthalenesulfonic acid is the major product because it is kinetically favoured product as arenium ion formed in the transition state corresponding to 1-naphthalenesulfonic acid is more stable due to better resonance stabilization.

When the reaction is carried at 160 °C, 2-naphthalenesulfonic acid is the major product as it is more stable than 1-naphthalenesulfonic acid because of steric interaction of the sulfonic acid group in 1-position and the hydrogen in 8-position.

The products are shown in image below.

7 0

4 years ago

A gas sample has a volume of 178 mL at 0.00oC.The temperature is raised at constant pressure until the volume reaches 211 mL. Wh

stiks02 [169]

V₁ = 178 mL - initial volume
T₁ = 0 ⁰C = 273K - initial temperature
V₂ = 211 mL - final volume
T₂ =? - final temperature

According to Charles's law when pressure is constant the Kelvin temperature and the volume will be directly related:

V₁/T₁=V₂/T₂

178/273=211/T₂

0.65=211/T₂

T₂=324K= 51⁰C

4 0

4 years ago