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Titration. Determine the average Volume of Solution S used. Calculate the number of Solution S used in the cnt. Calculate the Concentration of T (i) In g/Litros

Chemistry

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Answer

12.8 cm3\text{12.8 cm}^3

0.00064 mol\text{0.00064 mol}

Step-by-step solution

4 steps

Haya, hebu tukokotoe maswali haya hatua kwa hatua.

1. Kokotoa ujazo wa wastani wa Solution S iliyotumika.

  1. Jumlisha ujazo wote uliotumika.

    Jumla ya ujazo=12.7 cm3+12.8 cm3+12.9 cm3=38.4 cm3\text{Jumla ya ujazo} = 12.7 \text{ cm}^3 + 12.8 \text{ cm}^3 + 12.9 \text{ cm}^3 = 38.4 \text{ cm}^3
  2. Gawanya jumla ya ujazo kwa idadi ya majaribio (3) ili kupata wastani.

    Ujazo wa wastani=38.4 cm33=12.8 cm3\text{Ujazo wa wastani} = \frac{38.4 \text{ cm}^3}{3} = 12.8 \text{ cm}^3

    Ujazo wa wastani wa Solution S iliyotumika ni 12.8 cm3\boxed{\text{12.8 cm}^3}.

    2. Kokotoa idadi ya moli za Solution S iliyotumika katika jaribio.

    Tunatumia ujazo wa wastani uliokokotolewa hapo juu. Kutokana na hesabu yako, inaonekana mkusanyiko wa Solution S ni 0.05 mol/dm30.05 \text{ mol/dm}^3.

  3. Badilisha ujazo kutoka cm3\text{cm}^3 kwenda dm3\text{dm}^3 (lita).

    Ujazo wa S (katika dm3)=12.8 cm3×1 dm31000 cm3=0.0128 dm3\text{Ujazo wa S (katika dm}^3) = 12.8 \text{ cm}^3 \times \frac{1 \text{ dm}^3}{1000 \text{ cm}^3} = 0.0128 \text{ dm}^3
  4. Tumia formula ya moli

    moli=mkusanyiko×ujazo\text{moli} = \text{mkusanyiko} \times \text{ujazo}.

    Moli za S=0.05 mol/dm3×0.0128 dm3=0.00064 mol\text{Moli za S} = 0.05 \text{ mol/dm}^3 \times 0.0128 \text{ dm}^3 = 0.00064 \text{ mol}

    Idadi ya moli za Solution S iliyotumika ni 0.00064 mol\boxed{\text{0.00064 mol}}.

    3. Kokotoa Mkusanyiko wa T (i) katika g/Lita.

    Ili kukokotoa mkusanyiko wa T katika g/Lita, tunahitaji taarifa zifuatazo ambazo hazijatolewa kwenye picha:

    • Ujazo wa Solution T uliotumika katika titration (kwa kawaida huwekwa kwenye flaski ya conical).
    • Mlinganyo wa kemikali uliosawazishwa kati ya Solution S na Solution T ili kujua uwiano wa moli.
    • Molar mass ya Solution T ili kubadili moli kuwa gramu.

    Bila taarifa hizi, haiwezekani kukokotoa mkusanyiko wa T katika g/Lita.

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