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Fifty (50)cm 3 of Sulphur IV oxide gas (SO2) diffuse through a porous plug in 80 seconds. What volume of nitrogen IV oxide gas (NO2) will diffuse through the same plug in 10 seconds?

Chemistry

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Haya, nitakusaidia kutatua swali hili la kemia kwa kutumia Sheria ya Graham ya Usambazaji.

Swali:
Hamsini (50) cm³ ya gesi ya salfa IV oksidi (SO2SO_2) husambaa kupitia plagi yenye vinyweleo kwa sekunde 80. Ni kiasi gani cha gesi ya nitrojeni IV oksidi (NO2NO_2) kitasambaa kupitia plagi hiyo hiyo kwa sekunde 10?

Tunatumia Sheria ya Graham ya Usambazaji, ambayo inasema kwamba kiwango cha usambazaji wa gesi kinapingana na mzizi wa mraba wa uzito wake wa molekuli.

Rate1Rate2=M2M1\frac{Rate_1}{Rate_2} = \sqrt{\frac{M_2}{M_1}}

Ambapo Rate=VolumeTimeRate = \frac{Volume}{Time}.

  1. Kokotoa uzito wa molekuli wa gesi zote mbili.

    Uzito wa molekuli wa salfa IV oksidi (SO2SO_2): MSO2=32+(2×16)=32+32=64 g/molM_{SO_2} = 32 + (2 \times 16) = 32 + 32 = 64\, \text{g/mol}.
    Uzito wa molekuli wa nitrojeni IV oksidi (NO2NO_2): MNO2=14+(2×16)=14+32=46 g/molM_{NO_2} = 14 + (2 \times 16) = 14 + 32 = 46\, \text{g/mol}.

  2. Kokotoa kiwango cha usambazaji wa SO2SO_2.

    RateSO2=50 cm380 s=0.625 cm3/sRate_{SO_2} = \frac{50\, \text{cm}^3}{80\, \text{s}} = 0.625\, \text{cm}^3/\text{s}
  3. Tumia Sheria ya Graham kuhesabu kiwango cha usambazaji wa NO2NO_2.

    RateSO2RateNO2=MNO2MSO2\frac{Rate_{SO_2}}{Rate_{NO_2}} = \sqrt{\frac{M_{NO_2}}{M_{SO_2}}} 0.625 cm3/sRateNO2=46 g/mol64 g/mol\frac{0.625\, \text{cm}^3/\text{s}}{Rate_{NO_2}} = \sqrt{\frac{46\, \text{g/mol}}{64\, \text{g/mol}}} 0.625RateNO2=0.71875\frac{0.625}{Rate_{NO_2}} = \sqrt{0.71875} 0.625RateNO2≈0.84779\frac{0.625}{Rate_{NO_2}} \approx 0.84779 RateNO2=0.6250.84779≈0.73720 cm3/sRate_{NO_2} = \frac{0.625}{0.84779} \approx 0.73720\, \text{cm}^3/\text{s}
  4. Kokotoa kiasi cha NO2NO_2 kitakachosambaa kwa sekunde 10.

    KiasiNO2=RateNO2×Time\text{Kiasi}_{NO_2} = Rate_{NO_2} \times Time KiasiNO2=0.73720 cm3/s×10 s\text{Kiasi}_{NO_2} = 0.73720\, \text{cm}^3/\text{s} \times 10\, \text{s} KiasiNO2≈7.372 cm3\text{Kiasi}_{NO_2} \approx 7.372\, \text{cm}^3

    Kiasi cha NO2NO_2 kitakachosambaa ni takriban 7.4  cm3\boxed{\text{7.4\, cm}^3}.

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