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deff fn [24]
3 years ago
12

What is a zone of weak, variable winds located at 30 degrees north and 30 degrees south?

Chemistry
1 answer:
timurjin [86]3 years ago
4 0

Answer:

Horse latitude, trade winds

Explanation:

  • The area of the low pressure or the calm consists of the variable light winds that blow near the equator are known to the marines as the doldrums and they form a circuital pattern near the earth atmosphere.
  • Forms at a center of the near the higher pressure systems called as the horse latitudes where the  trade winds at the surface are weak and variable and this zone is found generally in latitudes of the 30° North and South of the equator and move in an east to west direction.

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At standard pressure, during which physical change does the potential energy decrease?
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3 years ago
What happens to the entropy of a piece of wood as it is burned?
s344n2d4d5 [400]

Answer:

It increases in value positively

Explanation:

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5 0
3 years ago
The formula for a buffer solution contains 1.24% w/v of boric acid. How many milliliters of a 5% w/v boric acid solution should
Yanka [14]

Answer:

248 mL of 5% w/v boric acid solution should be used to obtain the solution needed.

 

Explanation:

We can calculate the volume of the 5% w/v boric acid solution needed to prepare the buffer solution 1.24% w/v using the following equation:

C_{i}V_{i} = C_{f}V_{f}

Where:

C_{i}: is the concentration of the initial solution = 5% w/v

C_{f}: is the concentration of the final solution = 1.24% w/v

V_{i}: is the volume of the initial solution =?

V_{f}: is the volume of the final solution = 1 L

Hence, the volume of the 5% solution is:

V_{i} = \frac{C_{f}V_{f}}{C_{i}} = \frac{1.24 \%*1 L}{5 \%} = 0.248 L = 248 mL

Therefore, 248 mL of 5% w/v boric acid solution should be used to obtain the solution needed.

I hope it helps you!                  

6 0
3 years ago
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