Import Question JSON

Current Question (ID: 20804)

Question:

$\text{Consider the following reaction:}$ $4\text{HNO}_3(l) + 3\text{KCl}(s) \rightarrow$ $\text{Cl}_2(g) + \text{NOCl}(g) + 2\text{H}_2\text{O}(g) + 3\text{KNO}_3(s)$ $\text{How much HNO}_3 \text{ (in grams) is required to produce 110.0 g of KNO}_3?$ $\text{(Given: Atomic masses of H, O, N, and K are 1, 16, 14, and 39, respectively.)}$

Options:

1. $32.2\text{g}$
2. $69.4\text{g}$
3. $91.5\text{g}$
4. $162.5\text{g}$

Solution:

$3\text{KCl}(s) + 4\text{HNO}_3(l) \rightarrow \text{Cl}_2(g) + 3\text{KNO}_3(s) + \text{NOCl}(g)$ $\frac{4}{3} \left[ \frac{110}{101} \right] \text{ mole}$ $\text{Mass of HNO}_3 \text{ used} = \left[ \frac{4}{3} \times \frac{110}{101} \right] \times 63\text{g}$ $= 91.485\text{g}$

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
}