PLEASE HELPPP ILL GIVE BRAINLIEST!!!!!!!!!!!!!
2 answers:
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Answer:
Explanation:
Attached is the solution
Answer: Mass of the condensed vapor is 21.35 grams.
Explanation: As a gas, the Ideal Gas Law can be used to determine how many mols there are in the flask on the conditions described in question.
Temperature in K: 273 + 99.3 = 372.4K
Pressure in mmHg: P = 760.5 mmHg
Volume in L: V = 496.3. = 0.5 L
Universal Constant of Gases in mmHg: R = 62.36 L.mmHg.K⁻¹.mol⁻¹
PV = nRT
n =
n =
n = 0.1625
To determine the mass in grams:
n =
m = nM
m = 0.1625.131.4
m = 21.35
On the conditions cited above, there are <u>21.35 grams</u> of the unknown condensed vapor
Answer:
7.0625
Explanation:
The trapezoidal rule ( this is an approximation ) tells you that the average of the left and right endpoints should be as follows,
where ... at this point we can apply the Riemann Formula, in order to divide the interval 0 ≤ x ≤ 2 into n = 4 subintervals of length
.
,
= - Let's calculate the sub intervals for each, substituting to receive our solution.
( this is as 0⁴ is 0 )
( this is as
)
( 2
1⁴ is 2 )
( this is as
)
And finally , as 2⁴ is 16. Therefore, let us plug in our solutions for each into the primary expression, and solve,
= 7.0625 - this is our solution. The correct answer is option c, and i hope this clarifies why.