A chemist dissolves 700. mg of pure sodium hydroxide in enough water to make up 60. mL of solution. Calculate the pH of the solution. (The temperature of the solution is 25 °C.) Be sure your answer has the correct number of significant digits. ☐ ×10
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- A chemist dissolves 423. mg of pure potassium hydroxide in enough water to make up 130. mL of solution. Calculate the pH of the solution. (The temperature of the solution is 25 °C.) Be sure your answer has the correct number of significant digits.A chemist dissolves 815. mg of pure barium hydroxide in enough water to make up 110. mL of solution. Calculate the pH of the solution. (The temperature of the solution is 25 °C.) Be sure your answer has the correct number of significant digits. 1 x10 XCalculating the pH of a strong base solution 1/5 A chemist dissolves 706. mg of pure potassium hydroxide in enough water to make up 50. mL of solution. Calculate the pH of the solution. (The temperature of the solution is 25 °C.) Round your answer to 2 significant decimal places. ப ☐ x10 ☑
- A chemist dissolves 378. mg of pure barium hydroxide in enough water to make up 170. mL of solution. Calculate the pH of the solution. (The temperature of the solution is 25 °C.) Be sure your answer has the correct number of significant digits.The pH scale was designed to make it convenient to express hydrogen ion concentrations that are small in aqueous solutions. The definiton of pH is in terms of base 10 logarithms. pH = - log[H*] where [H*] is the hydrogen ion concentration. a. If the hydrogen ion concentration in a solution is 7.26 x 10 mol L, the pH is b. If the pH of a solution is 3.607, the hydrogen ion concentration is mol L.A chemist dissolves 387. mg of pure sodium hydroxide in enough water to make up 140. mL of solution. Calculate the pH of the solution. (The temperature of the solution is 25 °C.) Be sure your answer has the correct number of significant digits.
- The pH scale was designed to make it convenient to express hydrogen ion concentrations that are small in aqueous solutions. The definiton of pH is in terms of base 10 logarithms. pH = - log [H*] where [H"] is the hydrogen ion concentration. a If the hydrogen ion concentration in a solution is 1.97 x 10 molL, the pH is b. If the pH of a solution is 3.146, the hydrogen ion concentration is mol/L.Negative ions, designated by the notation OH are always present in any acid or base. The concentration, OH, of these ions is related to [H*] by the equation [OH]• [H*] = 10-14 moles per liter. Find the concentrations of [OH ] and [H*] in moles per liter for the substances with the given pH value. pH = 7 The concentration of H* is moles per liter. (Type your answer using exponential notation.)A scientist is comparing two lakes. She finds that water samples from Lake X have a pH of 3.50 and water samples from Lake Y have a pH of 5.50. Therefore, it can be said that Lake X has a hydronium ion concentration that is times greater than Lake Y.
- The pH of a solution is 2.45. What is the molar concentration of hydronium ions in the solution? The answer should be to the proper number of significant digits.The pH scale was designed to make it convenient to express hydrogen ion concentrations that are small in aqueous solutions. The definiton of pH is in terms of base 10 logarithms. pH = -log[H¹] where [H] is the hydrogen ion concentration. a. If the hydrogen ion concentration in a solution is 5.98 x 10-3 mol/L, the pH is b. If the pH of a solution is 3.171, the hydrogen ion concentration is mol/L.The concentration of hydronium ion in a sample of a solution is 4.5 x 10-3 mol/L. What is the pH of this solution? The answer should be to the proper number of significant digits