We can find out how acidic or basic a substance is by using the pH scale. The greater the pH number is, the more basic the substance is. In order to convert from pOH to pH, we can use the equation pH = 14 - pOH. Our new pH values are then solution A = 12.5, solution B = 7.0, and solution C = 0.5. The answer is then solution A, because it has the greatest pH value.
Hope this helps!
Step 1
The osmotic pressure is calculated as follows:
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Step 2
<em>Information provided:</em>
The mass of solute = 13.6 g
Volume of solution = 251 mL
Absolute temperature = T = 298 K
The molar mass of solute = M = 354.5 g/mol
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Step 3
Procedure:
1 L = 1000 mL => Volume = 251 mL x (1 L/1000 mL) = 0.251 L
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C = moles of solute/volume of solution (L)
C = mass of solute/(molar mass x Volume (L))
C = 13.6 g/(354.5 g/mol x 0.251 L)
C = 0.153 mol/L
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π = C x R x T
π = 0.153 mol/L x 0.082 atm L/mol K x 298 K
π = 3.74 atm
Answer: π = 3.74 atm
Because as you get older you will use more fancier words.
The answer is C, it’s a pattern that we can see and use on all right triangles.