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coldgirl [10]
2 years ago
8

Rose reviews the EPA website and finds a recommendation to use cold tap water for cooking instead of starting with warm water fr

om the tap. Why does the EPA site suggest using cold tap water for cooking instead of starting with warm tap water?
Chemistry
1 answer:
Nezavi [6.7K]2 years ago
4 0

The Environmental Protection Agency suggests using cold tap water for cooking instead of starting with warm tap water is because our drinking water is made out lead pipes, which is a serious risk to health.

Explanation:

  • Lead is found throughout  the environment in lead found in paint, air, soil,   food and water.
  • Lead can pose  a significant risk to your health  if too much of it enters your body.  
  • Lead enters drinking water primarily  as a result of the corrosion.
  • It also contains in materials containing lead like in the water distribution system and   household plumbing.
  • Lead in drinking rarely cause of lead poisoning can significantly increase a person’s total lead exposure.
  • In particular the exposure of infants who drink baby formulas  and concentrated juices that are  mixed with water.
  • EPA estimates  that drinking water can make up  to 20% or more of a person’s  total exposure to lead which is dangerous.
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Answer : The molecular weight of a gas is, 128.9 g/mole

Explanation : Given,

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First we have to calculate the moles of gas.

At STP,

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So, 1 liter volume of gas present in \frac{1}{22.4}=0.0446 mole of gas

Now we have to calculate the molecular weight of a gas.

Formula used :

\text{Moles of gas}=\frac{\text{Mass of a gas}}{\text{Molecular weight of a gas}}

Now put all the given values in this formula, we get the molecular weight of a gas.

0.0446mole=\frac{5.75g}{\text{Molecular weight of a gas}}

\text{Molecular weight of a gas}=128.9g/mole

Therefore, the molecular weight of a gas is, 128.9 g/mole

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