Homework Answers
To calculate the pOH of a solution you need to know the concentration of the hydroxide ion in moles per liter (molarity). The pOH is then calculated using the expression:
pOH = - log [OH-]
We have molarity of NaOH is 0.062 so
pOH = -log[0.062]
= 1.2076
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WILL GIVE THUMBS UP
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3 attempts left Check my work Enter your answer in the provided box. Calculate the pH of an aqueous solution at 25°C that is 9.3 x 10 Min HI. pH-
3 attempts left Check my work Enter your answer in the provided box. Calculate the pH at 25°C of a 0.055 M solution of a weak acid that has K, -1.7 x 10.
3 attempts left Check my work Enter your answer in the provided box Calculate the pH at 25°C of a 0.0051 M solution of a weak base with a K of 6.8 x 10-9. pH = |
3 attempts left Check my work Enter your answer in the provided box. Calculate the concentration of HNO, in a solution at 25°C that has a pH of 2.79. (HNO3) -
Question 11 of 15) value 1.00 points 3 attempts left Check my work Enter your answer in the provided box. solution of NaOH. Calculate the pH of a 1.0 x 10M pH= Question 14 (of 15) value: 1.00 points 3 attempts left Check my work Enter your answer in the provided box. Calculate the pH of a solution with a H2O concentration of: 1.8 x 10-6 M
1 attempts left Check my work Enter your answer in the provided box. Determine the pH at 25°C of a solution prepared by dissolving 0.30 mole of ammonium chloride in 1.0 L of 0.41 M aqueous ammonia. 12.65
3 attempts left Check my work Enter your answer in the provided box. In a 0.731 M solution, a weak acid is 12.5% dissociated. Calculate K, of the acid.
WILL GIVE THUMBS UP
3 attempts left Check my work Enter your answer in the provided box. points A sample of 0.5760 g of an unknown compound containing barium ions (Ba) is dissolved in water and treated with an excess of Na,C0y. If the mass of the BaCO, precipitate formed is 0.5343 . what is the percent by mass of Ba in the original unknown compound? ebook Print References 3 attempts left Check my work Enter your answer in the...
3 attempts left Check my work Enter your answer in the provided box. Calculate the number of grams of solute in 137.1 mL of 0.258 M calcium acetate. g solute
3 attempts left Check my work Enter your answer in the provided box. Determine the pH at 25°C of a solution prepared by dissolving 0.0650 mole of sodium acetate in 1.00 L of 0.250 M acetic acid. (Assume that the addition of sodium acetate does not change the volume of the solution.)
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