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melisa1 [442]
3 years ago
7

Explain what environmental bias means. What are the categories that

Chemistry
1 answer:
rewona [7]3 years ago
5 0

Answer: Environmental bias can be defined as the idea that suggests a group of people being living in the environment which is harmful for them.

Explanation:

There are three categories that make up the environmental bias there are socio-cultural choice, occupational choice, and personal choice.

The environmental bias can be related to chemistry as chemical lab is an area prone to chemical (acid, alkali) and fire so produced in reactions thus prone to accidental hazards not safe for working of people. But people like to work in chemical lab due to their personal and occupational choice.

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Answer:

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3 0
3 years ago
Fe2O3 + H2 --> Fe + H2O
sveticcg [70]
A) 10.0g of Iron is \frac{10.0}{55.8}=179mmol of Iron.

One mole of dihydrogen is required to form one mole of iron, hence you'll need 0.179*1.00=0.179g of dihydrogen.

B) Likewise : 2.50g of Iron is \frac{2.50}{55.8}=44.8mmol of Iron, hence we'll need 44.8*(3*16+2*55.8)=7.15g of Fe2O3.
4 0
4 years ago
Calculate the pH of the solution formed when 45.0 mL of 0.100M NaOH solution is added to 50.0 mL of 0.100M CH3COOH (Ka for aceti
pav-90 [236]

Answer:

pH of soltion will be 5.69

Explanation:

The pH of the solution will be due to excessive acid left and the salt formed. Thus, it will form a buffer solution.

The pH of buffer solution is calculated from Henderson Hassalbalch's equation, which is:

pH=pKa+log(\frac{[salt]}{[acid]} )

pKa=-log(Ka)

pKa=-log(1.8X10^{-5})=4.74

The moles of acid taken :

moles=molarityXvolume=0.1X50=5mmol

The moles of base taken:

moles=molarityXvolume=0.1X45=4.5mmol

The moles of acid left after reaction :

5-4.5=05mmol

The moles of salt formed = 4.5mmol

Putting values in equation

pH=pKa+log(\frac{[salt]}{[acid]} )=4.74+log(\frac{4.5}{0.5})=5.69

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3 years ago
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Answer:

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6 0
3 years ago
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Define matter. Give 5 examples of matter.​
Vladimir79 [104]

Answer:

Matter is the term for any type of material. Matter is anything that has mass and takes up space. At a minimum, matter requires at least one subatomic particle, although most matter consists of atoms.

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3 0
3 years ago
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