Question

A sample of grape juice has a hydroxide ion concentration of 1.4 × 10-10 M. Is the grape juice more or less acidic than a sample of orange juice that has a hydronium ion concentration of 1.8 × 10-4 M? Calculate the pH of the orange juice from its hydronium ion concentration.

Answer 1

Answer:

For the grape juice we get that the hydroxyl ion concentrations is  1.4 ×10-10M.

Hence, pOH will be = -log[1.4*10⁻¹⁰] which is approximately 9.6.

Now the value of pH will be = 14-pOH = 14 - 9.6 = 4.4.

For the orange juice we know that the H+ or hydronium  ion concentration is  1.8 × 10-4 M.

Then, the value of the pH will be= -log[1.8*10⁻⁴]=3.7 .

Thus from the above result it is clear that the range juice has lower pH, hence it will be more acidic. While the grape juice will be less acidic.  

Answer 2

Answer: 7.1

Explanation:

On edgenuity!