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2. If the hydroxide concentration of a HNOz/NO, buffer system is 0.00000025 M, what is the...
4.If the hydroxide concentration of a HNO3/NO3- buffer system is 0.00000025 M, what is the nitrate concentration if the nitric acid concentration is 0.84 and the dissociation constant, Ka, of HNO3 is 6 x 10-9 ?
1. An unlimited amount of bromine reacts with 19.3 grams of 4-iodo-5-isopropyl-2-nonene. How many grams of organic compound product can be made? 2. If the hydroxide concentration of a HNO3/NO, buffer system is 0.00000025 M, what is the nitrate concentration if the nitric acid concentration is 0.84 and the dissociation constant, Ka, of HNO, is 1.6 x 10°?
6. If the pH of a CH3COOH/CH3COO- buffer system is 4.5, what is the acetate concentration if the acetic acid concentration is 0.44 and the dissociation constant, Ka, of CH3COOH is 1.6 x 10-8 ?
If the hydroxide concentration of a CH3COOH/CH3COO- buffer system is 0.000045 M, what is the acetate concentration if the acetic acid concentration is 0.74 and the dissociation constant, Ka, of CH3COOH is 6 x 10-9 ? A hot piece of metal at 450K is placed in pure water that has a volume of 55.0 mL which has an initial temperature of 25.3°C. After five minutes, equilibrium is established and a final temperature of 44.4°C is reached . What is the...
6. If the pH of a CH3COOH/CH3COO buffer system is 4.5, what is the acetate concentration if the acetic acid concentration is 0.44 and the dissociation constant, Ka, of CH3COOH is 1.6 x 10-%? 7. A 23.3 g hot piece of metal at 350K is placed in pure water that has a volume of 55.0. The metal is placed in the water and after five minutes, equilibrium is established where the final temperature of the metal reaches 99.8°C. What is...
1. Calculate the hydronium ion concentration and the hydroxide ion concentration in lime juice with a pH of 2.0. Report answers in scientific notation and 2 significant figures Hydronium ion concentration = Hydroxide ion concentration = 2. What are the hydronium and hydroxide ion concentrations in a solution whose pH is 6.52? Report answers in scientific notation and 2 significant figures Hydronium ion concentration = Hydroxide ion concentration = 3. Which is the stronger acid, NH4+ or HBrO? Hint: Compare...
Which of the following aqueous solutions are good buffer systems? a. 0.14 M barium hydroxide + 0.24 M barium bromide b. 0.27 M nitric acid +0.22 M potassium nitrate c. 0.27 M ammonium nitrate + 0.37 M ammonia d. 0.20 M acetic acid + 0.16 M sodium acetate e. 0.34 M hypochlorous acid + 0.21 M sodium hypochlorite Submit Answer 2 question attempts remaining Use the References to access important values if needed for this question. The pH of an...
A buffer is made having a weak acid concentration of 0.50 M and a conjugate base concentration of 0.67 M. If the weak acid has a Ka of 4.5 x 10-6, what is the pH of the buffer? Answer with 3 sig figs.
PI1. (Sec. 15.3) What is the hydroxide ion concentration, JOr'l, in a solution where the plH equals 10.51: pH 10.51? (pHlog [H:0"]) a) 0.00318 M b) 3.24 x 10 M c) 8.91 x 109 M d) 9.25 x 10-10 M e) 1.45 x 102 M P1 equals 3.51: pH-3.51? (pHlog IHs0') 2. (Sec. 15.3) What is the hydroxide ion concentration, (oH], in a solution where the pH a) 0.442 M b) 2.29 x 103 M c) 4.77 x 10-3 M...
A buffer solution with a volume of 0.0250 L consists of 0.61 M iodous acid (HIO2), a weak acid, plus 0.61 M lithium iodite (LiIO2). The acid dissociation constant of iodous acid, Ka, is 3.2 ✕ 10−5. Determine the pH of the buffer solution after the addition of 0.0034 mol sodium hydroxide (NaOH), a strong base. (Assume no change in solution volume.) can u solve with an ice table? thank you.