(from the in class activity) - Suppose you dissolve three tablets of Sudafed (R), each containing 30.0 mg of pseudoephedrine hydrochloride, in 200.0 mL of water. What is the pH of the resulting solution reported to 2 significant figures (i.e., 2 decimal points)? The molar mass for pseudoephedrine hydrochloride is 201.7 g/mol and you previously solved for the Kb to be 2.8x104.

Q: What pH would expect if you mixed equal volumes of two solutions, one with a pH of 2.00 and one with…

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Q: Calculate the pH of a solution containing 0.00261 M hypochlorous acid (HCIO) and 0.00256 M sodium…

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Q: A chemist dissolves 642. mg of pure barium hydroxide in enough water to make up 100. mL of solution.…

A: Given, Mass of barium hydroxide = 642 mg                                                  = 0.642 g…

Q: A chemist dissolves 436. mg of pure barium hydroxide in enough water to make up 100. mL of solution.…

A: Given :  Mass of barium hydroxide = 436 mg  Volume of solution = 100. mL  To calculate :-  pH of…

Q: If we used H2C4H4O5 as the weak diprotic acid, which of the four species, H2C4H4O5, HC4H4O5^-,…

A: Given that, H2C4H4O5 is a weak diprotic acid & the four species are H2C4H4O5, HC4H4O5-,…

Q: A chemist dissolves 197. mg of pure sodium hydroxide in enough water to make up 170. mL of solution.…

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Q: 25.0 g sample of CH3COONa is completely dissolved in 500.0 mL of water and CH3COOH has an acid…

A: Given: Mass of CH3COONa = 25.0 g. And volume of solution = 500.0 mL = 0.500 L…

Q: you add 200 mL of 0. 100 M HCI to 1.00 L solution containing 0,150 M HEN and 0.300 M NaCN, what will…

A: Given-> Volume of HCl = 200 ml = 0.200 L (1L =1000ml) Molarity of HCl = 0.100 M Volume of initial…

Q: A chemist dissolves 656. mg of pure barium hydroxide in enough water to make up 90. mL of solution.…

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Q: Grams of Sodium Formate required to add to 400ml of 0.1M Formic acid to make the pH of solution by…

A: The reaction can be given as follows: HCOOH(aq)+NaOH(aq)→HCOO-Na+(aq)+H2O(l) Molarity of formic acid…

Q: For the following questions, wherever is necessary write the chemical equation(s) (pay attention to…

A: a) HCOOH dissociates as: HCOOH⇌HCOO-+H+ Construction of ICE table:                    HCOOH⇌HCOO-+…

Q: We have assumed [CO32-] << [HCO3] in our precedent calculation and accordingly ignored the [CO3²-]…

A: The common pH of rain water is 5.5 to 8.5 We need to explain that for most natural water, [CO32-]…

Q: Calculate the volume (ml)of concentrated ammonia and the weight (gm) of ammonium chloride…

A: Given data, pH = 10 The final concentration of the salt = 0.20 mol. The molar concentration of…

Q: 32.92 mL of 0.24 M NAOH is added to 23.71 mL of a 0.17 M HCI. What is the pH of the solution? Please…

A: Calculate the number of moles of NaOH and HCl. Number of moles = Concentration (M) × Volume…

Q: "HOUSEHOLD ACIDS AND BASES" Objective: Materials: To compare the pH values of various household…

A: Given : Table showing pH values To find : pOH, [H+ ] , [OH- ]  Solution : pH is defined as potenz of…

Q: Calculate the pH of a solution that contains 15.8 mL of 1.0 M NaCN, 26.3 mL of 1.0 M HCN and 5.9 mL…

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Q: A chemist dissolves 601. mg of pure barium hydroxide in enough water too make up 100. mL of…

A: Given : Mass of Ba(OH)2 = 601 mg = 0.601 g…

Q: advanced chemistry lab, a student prepared solutions of 0.1 citric acid (H3C6H507), 0.1 M lactic…

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Q: A 0.202 M solution of HX has a pH of 4.90 at 25°C. What is the value of Ka for HX? (the answer…

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Q: rder these chemical species by increasing pH of an 0.1 M aqueous solution of each. That is, imagine…

A: The question is based on the concept of acidity. we have to arrange the given molecules according to…

Q: In the lab you have 500 ml of a 0.45 M Na2HPO4 stock solution. If you take 10 ml of the solution and…

A: pH is used to determine the concentration of hydronium ion.

Q: The pKa of HOCl is 7.5. Calculate the pH of a 0.31 M solution of HOCl. How else can this concept be…

A: pKa: It is used to indicate strength of an acid. And it is obtained by negative log of acid…

Q: Upon clinical assessment, his blood result has a pH of 7.53, and the bicarbonate ion concentration…

A: pH of a solution is the concentration of hydronium ion in it. Mathematically, it is expressed as pH…

Q: Normally, the volume of gastric acid in the human stomach ranges from 20. mL to 100. mL and a pH…

A: Given:  Volume of the solution= 20 mL to 100 mL The given pH range =1.5 to 3.5  For the minimum…

Q: Determine the pH of 0.01 M solutions of Citric Acid, Sodium Dihydrogen Citrate, Sodium Hydrogen…

A: Dissociation of citric acid Being a triprotic acid, the dissociation of citric acid can be written…

Q: (from the in class activity) - Suppose you dissolve three tablets of Sudafed (R), each containing…

A: It is a salt made from weak base and strong acid.  So, pH = 0.5pKw - 0.5pKb - 0.5logC ...(1) Total…

Q: Assuming that the concentration of concentrated HCI is 10 M, estimate approximately how much…

A: The amount of acid and base, in terms of molarity, is calculated as shown below.…

Q: What mass (in g) of potassium fluoride should be added to 0.50 Lof 0.255-M HF(aq) at 25 °C to give a…

A: Given: Concentration of HF = 0.255 M Volume of solution = 0.50 L pH of buffer solution = 3.85  And…

Q: Given that B has pKb of 4.00, calculate the pH of 1.0 M BHCI. Express your answer with 2 places past…

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Q: My Questions b X VCU SONA FAFSA: Apply f X + X edugen/Iti/main.uni Return to Blackboard S Kime,…

A: Given that the pH of snow or rain is 4.0 . If the pH value is less than 7, then it will be acidic.…

Q: Would an aqueous solution of 0.25M sodium formate be acidic, basic or neutral? Write the equation…

A: Given,  An aqueous solution of 0.25M sodium formate is:

Q: A 30.0 mL aliquot of a solution is 0.25 M HCl . If 0.1 M NaOH is to be added to this solution,…

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Q: Calculate the volume (ml)of concentrated ammonia and the weight (gm) of ammonium chloride…

A: Calculating the pOH of the buffer by using the Henderson-Hasselbalch equation: pOH=pKb + log…

Q: For the following questions, wherever is necessary write the chemical equation(s) (pay tention to…

A: Buffer solution:  It is a special type of mixture of a weak acid or a weak base and its conjugate…

Q: Salts Ion/s that Acidic, Hydrolysis reaction will basic, or hydrolize neutral NaClO2 CH;CH,NH;F…

A: Hydrolysis is basically a chemical reaction where the water molecules were added to a compound.  All…

Q: 5.) Ripley, a flight officer for the Weyland-Yutani corporation, in the year 2312, landed on the…

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Q: 1. What mass, in g, of LICN (mM = 32.959 g/mol) needs to be added to 278.9 ml of 0.0415 M HCN to…

A: Given: Concentration of HCN = 0.0415 M Volume of HCN solution = 278.9 mL = 0.2789 L…

Q: Show, using equations for each, how according to the Bronsted-Lowry theory, the hydrogen sulfate…

A: Given,  Amphiprotic substance = HSO4- (aq)  Other ion = Cl-  Label equations as what are the acid…

Q: I'm not sure what this question wants me to solve for

A: Note: Assuming that question is to calculate the diluted HCl concentration.

Q: Hypochlorous acid (HOC) is an effective disinfectant and a weak acid that dissociates into…

A: HOCl ia a weak acid thus it can dissociate a little amount   Given, HOCl concentration is the 77% of…

Q: pH of the blood was found to have a pH of −21. Is the acid strong, what is the [H+]? In other words,…

A: We can determine the hydrogen ion concentration from pH as below : pH = - log [H+] Or,  -pH = log…

Q: A1 liter solution is made by adding 0.5983 moles NaH2PO4 and 0.5456 moles NazHPO4. What will be the…

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Q: how much grams of NaNo2 we needed to add into the 100 ml HNO2 solution has a concentration = 0.1…

A: We have to calculate the mass of NaNO2 required.

Q: Suppose you have 50.0 mL of 0.150 M HCIO. What will the pH of the solution be? The Ka of HCIO is 3.0…

A: The pH of the solution is calculated below.  Given Concentration of HClO = 0.150 M Ka = 3*10-8

Q: Clorazepate (abbreviated CZH, chemical formula C16H11CIN epilepsy. It is also a street drug known as…

A: As given in the question the pHof the sweet tea where CZH is added is solely contributed by the pHof…

Q: D. Behavior of Salts in Solution Table 12.7 (data) Salt Solution pH Sodium acetate Ammonium chloride…

A: Bronsted acid is proton donor and Bronsted base is proton accceptor.

Q: O o.IMNCI pH.- log Co-1) )o O0I MHCL pH. - log Co.0or] PH. 14.2.873 a) oIM CH CODH 1-8K10-. o le…

A: pH is a scale used to specify the acidity or basicity of an aqueous solution. The range goes from 0…

Q: A 0.492 Msolution of a weak base has a pH of 10.46. What is the base hydrolysis constant, ?bKb, for…

A: Given Concentration = 0.492 M pH = 10.46

Q: At a particular temperature and pressure, the dissociation constant for water (Kw) is 5.0×10-13.…

A: Given :- Dissociation constant of water i.e. Kw = 5.0 × 10-13  To be calculated :-  pH of pure water…

Q: Calculate the volume (ml)of concentrated ammonia and the weight (gm) of ammonium chloride…

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Q: An analytical chemist is titrating 139.2 mL of a 0.2600M solution of ammonia (NH3) with a 0.5900M…

A: we have to calculate the pH of the solution

Q: A chemist dissolves 461. mg of pure barium hydroxide in enough water to make up 180. mL of solution.…

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Q: A typical vitamin C tablet (containing pure ascorbic acid, H2CgHgOg) weighs 500 mg. One vitamin C…

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