12.HF is used to dissolve silicate rocks, HNO3 is used to dissolve plants and HCl will dissolve neither. Which is considered a weak acid?  HNO3  None of these; all are strong acids.  HCl  HF

Q: A.) In the laboratory, a general chemistry student measured the pH of a 0.589 M aqueous solution of…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A solution has [OH- ] = 4.0 x 10-8. What is the value of[H+] for the solution?(a) 2.5x 10 -8 M (b)…

A: Concentration of OH- ion is 4.0×10-8 M. Product of [H+] and [OH-] is equal to the ionic product of…

Q: 1. Calculate the mass of solid NaOH required to make 1.0L of a 0.50M NaOH solution. 2. Calculate the…

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Q: ) What is the [H+] of a solution that has a pH of 12?     a)  1 x 10-13 M   b)  12 x 101 M   c)…

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Q: An aqueous solution contains 0.050 M of methylamine. The concentration of H+ in this solution is…

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Q: A solution is contaminated with traces of copper, nickel, and zinc. Which option would be the safest…

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Q: 25.00 cm3 of 0.300 mol/dm3 sodium hydroxide solution is exactly neutralized by 0.100 mol/dm3…

A: Given  Volume of NaOH ( V1 )   = 25 cm3                   ( 1cm3  = 1 mL )…

Q: 16.5 mL of 0.228 M NaOH was required to neutralize 15 mL of an unknown H2SO4 solution.  What is the…

A: The neutralisation reaction between NaOH and H2SO4 is  2 NaOH + H2SO4 ------> Na2SO4 + 2 H2O

Q: 0.10 mol weak acid HCNO is dissolved in 1.00 L H2O I. α CNO- II. α HCNO   a) I > II b) I = II…

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Q: A 1.5 L nitric acid solution was prepared by mixing 5 mL of concentrated nitric acid (SG=1.42) with…

A: Specific gravity = 1.42  Volume of nitric acid = 5 mL

Q: How many grams of Ca(OH)2 are needed to neutralize 25.0 mL of 0.100 M HNO3? Ca(OH)2 + 2HNO3  --->…

A: The stoichiometry of the balanced reaction states that one mole of calcium hydroxide reacts with two…

Q: About 15 %% of the acid in a 0.10 MM solution of a weak acid dissociates to form ions. [H3O+][H3O+]…

A: 6.7 * 10-13  M 1.82

Q: Determine the normality of NaOH solution when 45.1 mL of a 0.1N HCl solution was used in titrating…

A: Normality: It shows the concentration of solution, and it is defined as number of moles equivalent…

Q: Calculate the molarity of KOH solution if 30.13 mL of a 0.250 M H2SO4 solution are used to…

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Q: ou find a mysterious solution. You add universal indicator to it and the solution turns Yellow! What…

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Q: Determine the molarity of a NaOH solution when each of the following amounts of acid neutralizes…

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Q: I. True or False. Write TRUE if the statement is correct and FALSE if it is incorrect _1. The…

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Q: pH Calculations of Polyprotic Systems b.)What is the pH of 0.1000 M NaH2PO4? (Ka1 = 6.9x10-3,…

A: Given :  Ka1 = 6.9 x 10-3  Ka2 = 6.2 x 10-8  Ka3 = 4.8 x 10-13  Concentration of NaH2PO4 = 0.1000 M…

Q: A solution of hydrochloric acid is mixed with an equal volume solution of barium hydroxide. When pH…

A: The Concentration of Barium hydroxide solution = 0.25 M

Q: Kw for water at 100 degrees celsius is 49 x 10^-14. Calculate the concentration of hydroxide ions in…

A: Given Kw = 49 × 10-14 H2O ----------> H+ + OH- Kw = [H+] [OH-]

Q: Find the pHpH of a 0.291 MM KClOKClO solution. (The KaKa of hypochlorous acid, HClOHClO, is…

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Q: A solution has [H⁺] = 4.9 10⁻³ M. The [OH⁻] in this solution is A) 1.0 10⁻¹⁴ M B) 4.9 10⁻¹¹ M C) 4.9…

A: Given is, [H⁺] = 4.9 ×10⁻³ M

Q: What is [H3O+] in a solution of 0.075 M HNO2 and 0.030 M NaNO2? HNO2(aq) + H2O(l) ⇌ H3O+(aq) +…

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Q: It takes 83.0ml of 0.45M NaOH solution to neutralize 235.0ml of an HCl solution. What is the…

A: Given data contains, Molarity of sodium hydroxide is 0.45 M Volume of sodium hydroxide is 83.0 mL.…

Q: the questions by writing the correct letter of your answer. Explain your answer briefly in 1 or 2…

A: Given-> (d)-> bleach ,pH 12.5 - 13.5 (e) ->distilled water ,pH =7

Q: A 15.0 mL solution of Sr(OH)₂ is neutralized with 56.8 mL of 0.350 M HCl. What is the concentration…

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Q: Calculate the pH when 1.03 g of NaClO (FW = 74.44 g/mol) is added to 44.4 mL of 0.50 M HClO. Ignore…

A: Answer: In this question we have to calculate the pH of the buffer made of HClO and NaClO.

Q: Which ions are present when FeBr 2 is dissolved in water?     Fe+ and Br-     Fe2+ and Br2-…

A: FeBr2 is an ionic compound. When an ionic compound added in to water then ionic compound is soluble…

Q: Calculate the ppm concentrations of 3.4 x 10-3 M solutions of each of the following. (a) Ca2+, (b)…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: Which of the following segments are correct and which incorrect and justify your answer. 1) In a…

A: Since we only answer up to 3 sub-parts. We'll answer first three.Please resubmit the question and…

Q: If a 1 mL of HCl is equivalent to 1.5 mL of 0.5N NaOH the volume of the alkali would be consumed by…

A: Given information is as follows; 1 mL of HCl (acid) = 1.5 mL of 0.5 N NaOH (alkali) 30 mL of HCl…

Q: chemist named Ciara titrates X mL of a 0.7633 M hypochlorous acid (HA) solution with 0.3245 M…

A: The pH of a solution is guided by the concentration of the hydrogen ions. When a base is added, it…

Q: Which pH would change the most if each of the following were diluted by adding 90.00 mL of distilled…

A: pH is the measurement of the presence of H+ ions in the solution. Mathematically it is given as,…

Q: An acid HA has Ka = 2.28 x 10 -4. The % ionisation of this acid ina 0.170 M solution of the acid in…

A: Given Ka = 2.28 x 10-4  Acid HA Concentration of acid , C = 0.170 M Chemical equation of…

Q: What is the concentration of H+ ions in HCl whose pH is 8.3? a. 5.01 moldm─3 b.…

A: The given acid is hydrochloric acid and its chemical formula is HCl. The pH of an acid can be…

Q: The [H₃O⁺] in a 0.050 M solution of Ba(OH)₂ is:    1.0x10⁻⁵   5.0x10⁻²   1.0x10⁻¹³   2.0x10⁻¹³…

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Q: Determine the volume of 0.250 M KOH which would exactly neutralize 28.5 mL of 0.100M H2SO4 solution

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Q: 4. Phosphoric acid is a triprotic weak acid with chemical formula H3PO4. Atomic masses of H, O, and…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Consider the following solutions: Solution 1: 0.100 L of 0.25 M NaCH3CO2 + 0.050 L of 0.25 M HCl…

A: # Solution-1: Volume of 0.25 M  NaCH3CO2 = 0.100 L Moles of NaCH3CO2  = C*V= 0.25 molL * 0.100 L=…

Q: A mixture of sodium hydroxide, NaOH(s) and benzoic acid, HC7H5O2(s), consists of a total of 0.50…

A: The number of moles is a ratio of the mass of a substance to the molar mass of the substance.…

Q: A student is conducting an investigation on the hydrogen (H *) and hydroxide (OH *) concentrations…

A: The acid is the product that produces a proton in the solution, while the base produces a hydroxide…

Q: Use the ICE table method to calculate the pH of a 0.89 M NH3 solution. Kp = 1.8 x 10-5 %3D…

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Q: A student is given the following information about an unknown solution. Dissociates 100% Feels…

A: Electrolytes are those Substances, which Dissociates into their constituent particles or ions and…

Q: Which one of the equations below represents what happens when HC,H3O2 is dissolved in water? O…

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Q: A student tests the electrical conductivity of a 2.0 M oxalic acid solution and compares it to the…

A: The acids given are oxalic acid i.e COOH-COOH and hydroiodic acid i.e HI. And the conductivity of HI…

Q: A solution is 0.26 M Sr(OH)2. What are the concentrations of H3 0" and OH in this solution? [Он ] 3D…

A: Given, Molarity of Sr(OH)2 = 0.26 M

Q: Calculate [OH⁻] in a solution obtained by adding 1.50 g solid KOH to 1.00 L of 10.0 M NH₃. (Kb of…

A: Given: mass of KOH = 1.5 g volume = 1.0 L Molarity = 10.0 M NH3 Kb of NH3 = 1.80×10-5  moles of NH3…

Q: How many milliliters of 0.100M barium hydroxide are required to completely neutralize 10.0mL of…

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