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Step2247 [10]
10 months ago
9

why is it necessary to adjust the height of the graduated cylinder when measuring the volume of co2 (g) produced? group of answe

r choices to compress the gas as much as possible to make the meniscus easier to read to compress the gas as much as possible to equalize the pressure in the graduated cylinder with the atmospheric pressure
Chemistry
1 answer:
Elanso [62]10 months ago
5 0

3. The height of the graduated cylinder when measuring the volume of co2 (g) produced is adjusted to equalize the pressure in the graduated cylinder with the atmospheric pressure.

We discovered that when the water level within the graduated cylinder is higher than the water level outside, the gases inside the graduated cylinder have a lower pressure than the atmospheric pressure. It would then be possible to equalize pressure by changing the graduated cylinder's water level to match the water level outside.

Therefore last option or 3rd option is the correct choice.

For more questions like Cylinder click the link below:

brainly.com/question/14085192

#SPJ4

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at a given tempature gas with a pressure of 150 kpa has volume of 0.8 l if the pressure decreases to 75kpa and the temperature r
vova2212 [387]
  <span>P*V/T=constant 
so P*V= constant*T 
if T doesn't change then 
P*V= constant 
so 150kPa*0.8L=75kPa*xL 
xL=150kPa*0.8L/75kPa=1.6L 
hope it help</span>
8 0
3 years ago
What most likely led to a change in the widely accepted theory of evolution? new experiments involving genes and evolution exper
ss7ja [257]

Incomplete question. Full question reads;

Darwin developed the theory of evolution to explain why there are so many different kinds of living things. He could easily observe that offspring of any animals were slightly different from their parents and that this could allow for big changes over thousands of years. He did not know that genes caused the differences. Genes are now very important in the modern theory of evolution.

What most likely led to a change in the widely accepted theory of evolution?

Answer:

<u>new experiments involving genes and evolution </u>

<u>Explanation:</u>

Indeed, the original theory of evolution has experienced several changes in its acceptance because of its imperfect and wrong assumptions not based on generally acceptable scientific facts,

Hence, new experiments involving genes and evolution has led to a change (disagreements and few agreements) in the widely accepted theory of evolution.

3 0
2 years ago
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sukhopar [10]
To find the mass you divide multiply volume and density..

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(1.79 x 10^-4 )(6.3) =  <span>1.1 x 10^-3 g
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7 0
2 years ago
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4 0
3 years ago
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Korvikt [17]

Answer:

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