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notsponge [240]
4 years ago
7

What is the reaction rate at 1000 K K when the concentration of NO N O is increased to 0.12 M M , while the concentration of H2

H 2 is 2.00×10−2 M M ?
Chemistry
1 answer:
marissa [1.9K]4 years ago
4 0

Answer:

the reaction rate of 1,000 k is 17.28 m/s

Explanation:

The computation of the reaction rate in case when NO is increased to 0.12 M is shown below:

According to the question, data provided is as follows

NO = 0.12M

H_2 = 2.00\times 10^{-2} M

Based on the above information

Reaction rate is

= (6.0\times10^4)\times(0.12)^2\times(2\times10^{-2})

= 17.28 M/s

Hence, the reaction rate of 1,000 k is 17.28 m/s and the same is to be considered

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The scientific method is defined as a method of research in which a problem is identified, relevant data is gathered, a hypothesis is formulated from this data, and the hypothesis is empirically tested.

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4 years ago
In the early 1900's many scientists thought that an atom consisted of a positive substance with negative charges scattered throu
andreyandreev [35.5K]

The question is incomplete; the complete question is;

In the early 1900s many scientists thought that an atom consisted of a positive substance with negative charges scattered throughout the substance. Then Ernest Rutherford completed an experiment that changed the concept of an atom. His discovery led to the understanding that an atom consists mostly of empty with space with-

Protons orbiting a dense nucleus made of electrons and neutrons

Electrons orbiting a dense nucleus made of protons and neutrons

Neutrons and protons orbiting a cloud of electrons

Electrons and protons orbiting a cloud of neutrons

Answer:

Electrons orbiting a dense nucleus made of protons and neutrons

Explanation:

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4 0
3 years ago
Which of these is a physical property? boiling point ,flamability, reactivity , toxicit
Mice21 [21]

Answer:

Boiling point.

Explanation:

Flammability, reactivity and toxicity are all chemical properties!

3 0
3 years ago
Which of the answer choices best describes how electrons move, according to modern atomic theory?
ivanzaharov [21]
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7 0
3 years ago
There are three stable isotopes of magnesium. Their masses are 23.9850, 24.9858, and 25.9826 u. If the average atomic mass of ma
olganol [36]

Answer:

²⁵ Mg = 10.00%

²⁶ Mg = 11.0%

Explanation:

Given that:

Magnesium ²⁴Mg has an abundance of 78.99%

Hence, (100 - 78.99)% = 21.01%

21.01% is the abundance of ²⁵ Mg and ²⁶ Mg

Suppose,

²⁵ Mg = x

²⁶ Mg = (21.01 - x)%

Then;

avg. atomic mass = \dfrac{78.99}{100 }(23.9850)+\dfrac{x}{100}(24.9858) +\dfrac{21.01-x}{100}(25.9826)

where the avg. atomic mass = 24.3050

∴

24.3050 \times 100 = {78.99}(23.9850)+\dfrac{x}{100}(24.9858) +\dfrac{21.01-x}{100}(25.9826)

2430.5 = 2440.46915 -0.9968 x

0.9968x = 2440.46915 - 2430.5

0.9968x = 9.96915

x  =  9.96915/0.9968

x  =  10.00%

∴ Recall that:

²⁵ Mg = x

²⁶ Mg = (21.01 - x)%

²⁵ Mg = 10.00%

²⁶ Mg = (21.01 - 10.00)%

²⁶ Mg = 11.0%

3 0
3 years ago
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