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Fiesta28 [93]
3 years ago
7

A. 24.5 g of ammonia NH3 = how many moles of ammonia?

Chemistry
1 answer:
Art [367]3 years ago
4 0
23.9 11.00 would be the wrong answer because I guessed
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What is the ph of H2?
nekit [7.7K]

Answer:

Hydrogen ion concentration is more conveniently expressed as pH, which is the logarithm of the reciprocal of the hydrogen ion concentration in gram moles per liter. Thus, in a neutral solution the hydrogen ion (H+) and the hydroxyl ion (OH−) concentrations are equal, and each is equal to 10−7. A pH of 7 is neutral

4 0
3 years ago
14 billion years (roughly the age of the universe) to seconds. (Assume there are 365 days in a year.)
fenix001 [56]

Answer:

                     4.41 × 10¹⁷ Seconds

Explanation:

                   For this problem we will first find out the number of days in 14 billion years.

Remember that 1 billion is equal to 1,000,000,000 or 10⁹. So, 14 billion years will be written as 14,000,000,000 or 1.4 × 10¹⁰ years.

Therefore, In

                           1 year there are  =  365 years

So, In

                  1.4 × 10¹⁰ years  there will be  =  X years,

Solving for X,

                     X =  1.4 × 10¹⁰ years × 365 days / 1 year

                      X =  5.11 × 10¹² days

Secondly, as there are 24 hours per day and each hour has 60 minutes and each minute has 60 seconds, therefore, the number of seconds per day are calculated as,

Number of Sec/day = 24 × 60 × 60

Number of Sec/day = 86400 sec/day

Hence, If,

                               1 day has  =  86400 seconds

then,

                    5.11 × 10¹² days will contain  = X seconds

Solving for X,

                      X =  5.11 × 10¹² days × 86400 sec / 1 day

                     X  =  4.41 × 10¹⁷ Seconds

6 0
3 years ago
Question 1 of 10
Alina [70]

D. The total number of gas molecules will decrease.

Explanation:

According to Le Chatelier's principle, an increase in pressure in a system involving gases will cause the total number of gas molecules to decrease.

Le Chatelier's principle states that "if any conditions of a system in equilibrium is changed, the system will adjust itself in order to annul the effect of the change".

In a reaction involving gases, a change in pressure affects only reactions in a gaseous phase.

An increase in pressure on an equilibrium system will shift the position of the equilibrium to the side having smaller volume and vice versa.

learn more:

Equilibrium brainly.com/question/10838453

#learnwithBrainly

6 0
3 years ago
Plsss guys hurry up it would mean a lot!!​
Mnenie [13.5K]
Fossil fuels is the answer
8 0
3 years ago
If electrons were used in the two slit experiment instead of light, what change would need to be made to the slit spacing in ord
irina [24]
The change that would need to be made to the slit spacing in order to see a diffraction pattern is bending, because in understanding why light behaves like a wave, it is the interference and diffraction were the phenomena distinguish waves from particles but waves are the only one can interfere and diffract while particles do not. The light bends around obstacles or cylinder like waves do, then it is bending which cause and resulted in the single slit diffraction pattern. 
5 0
3 years ago
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