A teacher wants to perform a classroom demonstration that illustrates both chemical and physical changes. Which would be the bes
1 answer:
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Hello!
<span>We have the following statement data:
</span>
Data:
<span>As the percentage is the mole fraction multiplied by 100:
</span>
<span>The mole fraction will be the percentage divided by 100, thus:
</span><span>What is the partial pressure of oxygen in this mixture?
</span>
<span>To calculate the partial pressure of the oxygen gas, it is enough to use the formula that involves the pressures (total and partial) and the fraction in quantity of matter:
</span>
In relation to
:
<span>
Answer:
</span><span>b. 320.0 mm hg </span>
<span>We have the following statement data:
</span>
Data:
<span>As the percentage is the mole fraction multiplied by 100:
</span>
<span>The mole fraction will be the percentage divided by 100, thus:
</span><span>What is the partial pressure of oxygen in this mixture?
</span>
<span>To calculate the partial pressure of the oxygen gas, it is enough to use the formula that involves the pressures (total and partial) and the fraction in quantity of matter:
</span>
In relation to
<span>
Answer:
</span><span>b. 320.0 mm hg </span>
Answer :
(a) 0.0152
(b) 0.0000000778
(c) 0.000001
(d) 1600.1
Explanation :
Scientific notation : It is the representation of expressing the numbers that are too big or too small and are represented in the decimal form with one digit before the decimal point times 10 raise to the power.
For example :
5000 is written as
889.9 is written as
In this examples, 5000 and 889.9 are written in the standard notation and and
are written in the scientific notation.
(a)
The standard notation is, 0.0152
(b)
The standard notation is, 0.0000000778
(c)
The standard notation is, 0.000001
(d)
The standard notation is, 1600.1