Import Question JSON

Current Question (ID: 20851)

Question:

$\text{The volume in mL of } 0.125 \text{ M AgNO}_3 \text{ required to quantitatively}$ $\text{precipitate chloride ions in } 0.3 \text{ g of } [\text{Co(NH}_3\text{)}_6] \text{Cl}_3 \text{ is:}$ $\text{Molecular Mass of } [\text{Co(NH}_3\text{)}_6] \text{Cl}_3 = 267.46 \text{ g/mol}$ $\text{and } \text{AgNO}_3 = 169.87 \text{ g/mol}$

Options:

1. 12.36
2. 26.92
3. 8.973
4. 45.12

Solution:

$\text{Hint:}$ $3\text{AgNO}_3 + [\text{Co(NH}_3\text{)}_6] \text{Cl}_3 \rightarrow [\text{Co(NH}_3\text{)}_6](\text{NO}_3)_3 + 3\text{AgCl}$ $\frac{0.125 \times \text{vol.}}{1000 \times 3} = \frac{0.3}{267.46}$ $\text{vol.} = \frac{8 \times 1000 \times 0.3 \times 3}{267.46} = 8.973 \times 3 = 26.92$

Import JSON File

Upload a JSON file containing LaTeX/MathJax formatted question, options, and solution.

Expected JSON Format:

{
  "question": "The mass of carbon present in 0.5 mole of $\\mathrm{K}_4[\\mathrm{Fe(CN)}_6]$ is:",
  "options": [
    {
      "id": 1,
      "text": "1.8 g"
    },
    {
      "id": 2,
      "text": "18 g"
    },
    {
      "id": 3,
      "text": "3.6 g"
    },
    {
      "id": 4,
      "text": "36 g"
    }
  ],
  "solution": "\\begin{align}\n&\\text{Hint: Mole concept}\\\\\n&1 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\text{ moles of carbon atom}\\\\\n&0.5 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\times 0.5 \\text{ mol} = 3 \\text{ mol}\\\\\n&1 \\text{ mol of carbon} = 12 \\text{ g}\\\\\n&3 \\text{ mol carbon} = 12 \\times 3 = 36 \\text{ g}\\\\\n&\\text{Hence, 36 g mass of carbon present in 0.5 mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6].\n\\end{align}",
  "correct_answer": 4
}