Answer:
1-C
2-A
3-F
4-B
5-D
6-E
Explanation:
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<span>An acetate buffer solution
Volume of Acetic Acid = 50 ml
Concentration of Acetic Acid = 0.20 M
Volume of Sodium Acetate = 50 ml
Concentration of Sodium Acetate = 0.20 M
Volume of NaOH = 5 mL of 0.10 M
The correct pairing is B) Acetic acid with pH > 4.7</span>
There are 118 known elements
Answer:
221 °C
Explanation:
From the question given above, the following data were obtained:
Initial volume (V₁) = 4.1 L
Initial temperature (T₁) = 25 °C
= 25 °C + 273
= 298 K
Final volume (V₂) = 6.8 L
Final temperature (T₂) =?
The final temperature of the gas can be obtained as follow:
V₁ / T₁ = V₂ / T₂
4.1 / 298 = 6.8 / T₂
Cross multiply
4.1 × T₂ = 298 × 6.8
4.1 × T₂ = 2026.4
Divide both side by 4.1
T₂ = 2026.4 / 4.1
T₂ ≈ 494 K
Finally, we shall convert 494 K to celcius temperature. This can be obtained as follow:
°C = K – 273
K = 494
°C = 494 – 273
°C = 221 °C
Thus the final temperature of the gas is 221 °C
