Answer: 103.7 kPa
Explanation:
Given that:
initial volume of gas V1 = 445ml
initial pressure of gas P1 = 120 kPa.
new Volume V2 = 515ml
new pressure P2 = ?
Since, only pressure and volume are involved, apply the formula for Boyle's law
P1V1 = P2V2
120 kPa x 445ml = P2 x 515 kPa
53400 = P2 x 515 kPa
P2 = 53400/515
P2 = 103.7 kPa
Thus, the final pressure of the gas is 103.7 kPa
A neutralization reaction is in essence a reaction between an acid an a base which usually results in pH neutral compounds being formed (a salt and water). Therefor the answer would be OPTION A (<span>base + acid → salt + water)</span>
The answer would be the third option. (the angle at which the light hits the surface.)<span>
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Answer: It is approximately 24.985837
Answer:
The number of carbon atoms in the container is 1.806 × 10²⁴ or the container contains 1.806 × 10²⁴ atoms of carbon
Explanation:
By Avogadro's number, 1 mole of a substance contains 6.02 × 10²³ particles of the substance
Here we have 0.45 mole of CO₂ contains
0.45 × 6.02 × 10²³ particles of CO₂ that is 2.709 × 10²³ particles of CO₂ or equivalent to 2.709 × 10²³ atoms of Carbon
Similarly, 2.55 moles of CaC₂ contains 2.55 × 6.02 × 10²³ particles of CaC₂ or 1.5351 × 10²⁴ atoms of Carbon
The total number of carbon atoms is therefore;
2.709 × 10²³ + 1.5351 × 10²⁴ = 1.806 × 10²⁴ atoms of carbon.
