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olganol [36]
3 years ago
14

Which is an indicator of poor air quality? salt bacteria fertilizer smog

Chemistry
1 answer:
nlexa [21]3 years ago
3 0
Smog

formed by mixture of smoke and fog
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What is the molarity if 16. 0 grams of NaOH is dissolved in 855 mL of solution?
DiKsa [7]

Answer:

734.0 grams

Explanation:

Because 16.0 and 855 mL it is 734.0 grams :) hope it helps

4 0
2 years ago
To what temperature does a 250.0-ml cylinder containing 0.1000 mol he need to be cooled in order for the pressure to be 253.25 k
Elza [17]
76.19 K according to Gradpoint (my hw). 

7 0
3 years ago
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Evan watches the weather report on the news. The announcer states that an air mass formed over a tropical ocean is moving into t
Nezavi [6.7K]
Evan can expect windy and rainy weather
5 0
3 years ago
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How many atoms are found in 12.0 grams of Helium?
Allisa [31]
<span>Each mole contains Avagodro's number of atoms i.e. 6.023x10^23, so

3 moles x 6.023x10^23 atoms/mole = 18.069x10^23 atoms = 1.8x19^24 atoms </span>
3 0
3 years ago
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g Tom's roommate Bob spilled crystal violet solution on his lab coat, and Tom offers to use some lye (sodium hydroxide solution)
irina [24]

Answer:

Tom is correct. The rate of reaction of Crystal violet and NaOH is first order with respect to NaOH, hence, a higher concentration of NaOH corresponds to a higher rate of reaction; a faster reaction.

This means the speed of cleaning depends on the concentration of the lye used.

Explanation:

The reaction between Crystal violet and NaOH, represented as

CV⁺ + OH⁻ → CVOH

It is a reaction that is know to turn the violet colour of the crystal violet colourless.

The rate of the reaction is also known to be second order; first order with respect to Crystal violet and first order with respect to NaOH.

This means that the rate of reaction is directly proportional to the concentration of NaOH provided all other parameters such as the rate constant and the concentration of Crystal violet are constant.

Hence, the reaction becomes faster with an increased concentration of NaOH.

So, Tom is right, concentrated lye solution would remove the stain faster.

Bob is wrong.

Hope this Helps!!!

4 0
3 years ago
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