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lys-0071 [83]
3 years ago
8

The chemistry teacher asked George to transfer an ideal gas from container A to container B. Container B is half the size of con

tainer A. If the temperature and moles of gas stay constant during transfer, the rate of collisions will _______________ and the pressure will __________
Chemistry
2 answers:
Rzqust [24]3 years ago
7 0
I think the answer is increase; increase

Allisa [31]3 years ago
6 0

Explanation:

According to the ideal gas equation, PV = nRT.

where,               P = pressure,                  V = volume

                         n = number of moles,     R = gas constant

                         T = temperature

Since, pressure is inversely proportional to volume. As container B is half in size as compared to container A. Therefore, pressure will increase when gas is added to container B.

Also, there will be more number of collisions between the molecules. Due to this there will be increase in rate of collisions.

Thus, we can conclude that for the given situation if the temperature and moles of gas stay constant during transfer, the rate of collisions will increase and the pressure will also increase.

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sesenic [268]
The number of mole of Ca reacted is:
4.86 g Ca/ (40.08 g/mol Ca)= 0.121 mol Ca

Because Ca reacted completely with oxygen and there is 2 mol Ca, there is 1 mol O2 reacted.

Total mass of oxygen that reacted is:
0.121 mol Ca* (1mol O2/ 2 mol Ca)* (32 g O2/ 1 mol O2)= 1.94 g O2 reacted.

Hope this would help~
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A chemist must dilute 34.3mL of 1.72mM aqueous calcium sulfate solution until the concentration falls to 1.00mM. He'll do this b
EastWind [94]

Answer:

58.9mL

Explanation:

Given parameters:

Initial volume  = 34.3mL    = 0.0343dm³

Initial concentration  = 1.72mM   = 1.72 x 10⁻³moldm⁻³

Final concentration  = 1.00mM = 1 x 10⁻³ moldm⁻³

Unknown:

Final volume  =?

Solution:

Often times, the concentration of a standard solution may have to be diluted to a lower one by adding distilled water. To find the find the final volume, we must recognize that the number of moles of the substance in initial and final solutions are the same.

   Therefore;

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where C and V are concentration and 1 and 2 are initial and final states.

        now input the variables;

                      1.72 x 10⁻³ x  0.0343 = 1 x 10⁻³  x V₂

                        V₂ = 0.0589dm³ = 58.9mL

         

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otez555 [7]
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sergiy2304 [10]

Answer:

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Symbol: p

Units: kg x m/s

Explanation:

......

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