12. What is the pH of a solution in which [OH-] = 0.000005 M7 1. 5.3 8.7 O 5 x10
Q: 4. A salt solution consisting of 10.0% sodium chloride (salt) consists of how many parts per million…
A: Parts per million (ppm) is expressed as mg/Litre where 1 ppm means 1mg/litre. Hence if we dissolve 1…
Q: What is the pH of a solution made by mixing 25.00mL of .1500M NaOH with 25.00mL of .2500M HClO2?
A: HClO2 is Chlorous acid which is a weak acid. Weak acid dissociate weakly in aqueous solutions.…
Q: 4. Draw the formula of Ala-Cys at pH = pl a) b) pH > pl c) pH < pl (Ala: pK.(COOH)= 2,34, pK.(NH3")…
A: Ala-Cys is a dipeptide. Alaninne has R= CH3 but cysteine has R= CH2-SH.
Q: 8) Define the following terms: a. Hydrophobic b. Hydrophillic
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Q: 7. What type of reaction forms a disaccharide from monosaccharides? acid-base B. condensation C.…
A: Carbohydrates are the hydrates of carbon that contain carbon, hydrogen, and oxygen in the ratio of…
Q: A solution with a pH of 6 has a ____ difference in H ion concentration than a solution with a pH of…
A: pH is chemical scale that specifies the acid or basic strength of a solution. Pure water has a pH of…
Q: 2. Describe how you would prepare the following solutions: d) 250 mL of 0.10 M NH3 from a 14.8 M…
A: To prepare 250ml of 0.10M solution we need to dilute the 14.8M stock solution. The dilution is…
Q: 1) A solution is made by combining 128 mL of ethanol and 0.452 L of water. In this solution, what is…
A: Hi! Thanks for your question. But as you have posted multiple questions, I am answering only the…
Q: 4) The result above occurred because the potassium permanganate crystals have a weight than the…
A: As per our company's guidelines we are supposed to answer a single at a time, please repost the rest…
Q: 1. How many molecules of NaCl are there in a 50.0 g sample of NaCl? The molecular weight of NaCI is…
A: Note: We are authorized to answer one question at a time since you have not mentioned which question…
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A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: _7. Which of the following FA has the lowest melting point? A. Stearic acid B. Palmitic acid C.…
A: A fatty acid is a molecule that is composed of a long hydrocarbon chain attached to the carboxylic…
Q: 2. Identify the following bonds as ionic or covalent. a) NaF b) MgCl2 c) C6H1206 d) NO2 e) CaF2 f)…
A: a )= Na+-F- b)= Mg2+ - Cl- = MgCl2 C)= d)= O - N -O = NO2 e)= F- - Ca2+ -F- f) =Li +- F-
Q: Soft drinks usually have a pH of approximately 3.1. What is the [H3O+] concentration in a soft…
A: Consumption of soft drinks is a very controversial issue for public health. Soft drinks contains…
Q: A solution has a pH of 5.4. What is its pOH O5.4 8.6
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Q: 2. The hydrogen ion concentration, [H*], of a solution, given its pH, can be calculated by taking…
A: Blood tissue is made of cell types like RBC, WBC, platelets and fluid component like plasma. Plasma…
Q: 1M = 1 mole/L. To determine how many grams of a substance is equal to one mole the molecular mass is…
A: C₁ = the original concentration of stock solution V1= the volume of stock solution needed to make…
Q: а. 1.3 b. 2.3 C. 3.3 d. 4.3 termine the pH of a 0.50 M NAH2PO4 and 0.10 M Na2HPO4 solution pka is…
A:
Q: A very weak acid has à Ka= 4.37 x M? (-) What is the [H+] of a solution of this acid that is 2.65
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Q: 8. What is the molarity of the solution prepared by diluting 75 mL of 1.50 M silver nitrate (AgNO3)…
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Q: 1. One liter of an aqueous solution contains 0.10 M Lys at pH=10.8, and 0.1 M HCl is subsequently…
A:
Q: 1. What caused the color changes in containers A, B, C, and D? 2. What is the effect of the sprite/…
A: Buffers are solutions that can maintain a steady pH despite the addition of modest amounts of acids…
Q: 10. Identify the following as either chemical change (C) or physical change (P) baking a pie melting…
A: A chemical change is a process during which one or more ingredient (reactant) chemically reacts to…
Q: 3. Why are we able to look at the melting temperature of a solution and use Kr values in our…
A: The atomic bonding strength of any substance is indicated by its melting point. on applying…
Q: The C-C bond angles for the ring in M2 is: 60º 109.5º 120º 180º
A: Asked : C-C bond angles for the ring in M2
Q: 4. What is the total charge of lysine in the strong acidic medium? A) +2 B) -2 C) +1 D) 0 E) -1
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Q: What is the [OH-} concentration of a solution that has a pH of 3? O 10e^-3 O 10e^-10 O 10e^-11 O…
A: pH is defined as the negative logarithm of hydrogen ion concentration.
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A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: 39. A salt solution of 50.0% sodium chloride (salt) consists of how many parts per million (measured…
A: INTRODUCTION Answer of question 39 is explained below.
Q: 1. Calculate the pH of an acetate buffer prepared by dissolving sodium acetate (5.21 g) and acetic…
A: Given Values: Weight of sodium acetate = 5.21 g Weight of acetic acid = 2.19 g The volume of the…
Q: 4. Which of the following would be considered a basic solution? A. Solution with [OH-] = 3.8 x 10 M…
A: We can find out this using formula pH + pOH = 14 pOH = -log[OH-] and pH = -log [H+]
Q: 3. What are the effects of the following solvents when mixed with lipids? What type of hydrolysis is…
A: The lipids are the chemical substances or macromolecules that are usually insoluble in water but…
Q: How many mL of distilled water must be added to make the Benzalkonium chloride preparation isotonic
A: Calculate in next step
Q: What is the concentration in % (w/w), of a solution prepared by mixing 50.0 g NaCl and 150.0 g…
A: The weight by weight percentage of 50.0 g of NaCl in 150.0 g of water = (weight of NaCl/ weight of…
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A: Carbon tetrachloride (CCl4) binds to triacylglycerols and phospholipids throughout subcellular…
Q: 4. Hydrogen bonding occurs between: O Water and water. O Water and polar molecule. O Between two…
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Q: 1. Which of the following is correct when comparing a solution at pH 11 to a solution at pH 7. A…
A: A solution with high H+ ions indicate an acid solution A solution with high OH- ions indicate a…
Q: 7. Which of the following is a valid buffer? A. 0.30 M HNO, and 0.30M NANO, B. 0.20 M HF and 0.10 M…
A: Buffers are solutions that do not alter pH when diluted or when tiny volumes of acids or alkalis are…
Q: 1. The K, of acid HX is 2.0 x 10 NaX is a salt that produces its conjugate base X What is the pH of…
A: Given Values: Ka value of [HA] = 2.0 × 10-6 pKa = - log Ka = - log 2 × 10-6 = 6 - log 2 = 6 -0.30 =…
Q: what is the pH of a solution with a H+ concentration of 1.44 x 10-3 M
A: pH is the potential of hydrogen.pH is a way of measurement of acidity or alkalinity.It measures the…
Q: The pOH of a solution of NaOH is 11.30. What is the [H+] for this solution? O 2.0 x 10-3 O 2.5 x…
A: pH is the measure of the concentration of hydrogen ions in a given solution. It is measured on a log…
Q: If the pH is 2, what is the %HA at of a molecule has a pKa = 6? Report the answer to one decimal…
A:
Q: 25. What would be the new pH of a 1L buffer solution (pH=7.8) upon the addition of 3mL O.0001 M HCI.…
A: A buffer solution is an aqueous mixture of a weak acid and its conjugate base, or vice versa, known…
Q: A buffer solution consisting of citric acid and citrate in a ratio of 5:1 maintains the pH at 7.4.…
A: The buffer solution is any solution that contains mixture of weak acid and its conjugate base or…
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- The pH of black coffee is 5, and that of milk of magnesia is 10. Is the coffee twice as acidic as milk of magnesia?What mass of sodium glycolate (NaC2H3O3) should be added to 400.0 mL of 1.00 M glycolic acid to produce a buffer solution with a pH of 4.00? Ka = 1.47 x 10-4Describe how you would prepare a 500 ml of 0.35M Glycine pH2.2 from a 5M Glycine solution of pH 7. Show your calculations.
- What mass of sodium glycolate (NaC2H3O3) should be added to 400.0 mL of 1.00 M glycolic acid to produce a buffer solution with a pH of 4.00? Ka = 1.47 x 10-4. Please indicate the full solutions.What is the approximate pH of a solution labeled 6 x 10-5 M HBr? * 4.2 4.5 5.8 9.8 8.2What is the pH of an aqueous solution with {H3O+} = 6x10-12
- A 0.200 M solution of a weak monoprotic acid (HA) has a pH of 2.35. What is the value of K of this acid? a K =2.011e-4 a What is the percent ionization of this acid? Percent Ionization = .10 %A solution with a density of 0.876 g>mL contains 5.0 g of toluene 1C7H82 and 225 g of benzene. Calculate the molarity of the solution.Calculate the normality of a solution that contains 4.5 g of (COOH)2 in 3000 mL of solution? (Assume the (COOH)2 is to be completely neutralized in an acid-base * reaction.) 0.033 N O 0.33 N O 0.166 N O 0.0166 N 0.45 N O 0.045 N 000.0 OO