According to the wave model of light what makes blue light different from green light
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The question is incomplete , complete question is:
A chemist dissolves 640.0 mg of pure hydroiodic acid in enough water to make up 280.0 mL of solution . Calculate the pH of the solution. Round your answer to significant decimal places.
Answer:
1.8 is the pH of the solution.
Explanation:
Mass of hydroiodic acid = 640.0 mg = 0.640 g
1 mg = 0.001 g
Moles of hydroiodic acid =
1 mole of hydroiodic acid gives 1 mole of hydrogen ions and 1 mole of iodide ions.
Then 0.005 moles of hydroiodic acid will give :
1 × 0.005 mol = 0.005 mol
Moles of hydrogen ions = 0.005 mol
Volume of the hydroiodic solution = 280.0 mL - 0.280 L ( 1 mL = 0.001 L)
The pH of the solution is given by :
1.8 is the pH of the solution.