Salicylic acid reacts with acetic anhydrate to form aspirin, acetylsalicylic acid. How much aspirin can be produced from the reaction of 100 g of Salicylic acid and 100 g acetic anhydrate? What is the initial formula used to solve this?
1) What is the effect of heat on an element such as copper? What new substance is formed? What is the effect of heat on a compound such as copper(II) carbonate? What gas is produced.? 2) What is the effect of acid on the following substances and what gas is produced?
See the attached file. 1. A sample of concetrated nitric acid has density of 1.41g/ml and contains 70% HNO3, by mass. a. What mass of HNO3 is present per litre of solution?(in g/l) b. What is the molarity of the solution? 2. Calculate each of the following quantities. a. molarity of a solution prepared by diluting 3
Answer these questions: 1. How many grams of NaH2PO4 are needed to react with 38.45 mL of 0.285 M NaOH? NaH2PO4(s) + 2 NaOH(aq) Na3PO4(aq) + 2 H2O(l) 2. How many moles of which reactant are in excess when 356.0 mL of 0.268 M sulfuric acid reacts with 0.590 L of 0.177 M sodium hydroxide to form water and aqueous sodium s
A 0.10 M solution of hypobromous acid has a pH of 4.80. What is the Kb of BrO-?
I need some help with this question: What is the molarity of an aqueous hyporomous acid, HOBr, solution that is found to have a pH=5.2? HOBr (aq) + H2O (l) <=> H30(aq) + OBr (aq) pKa= 8.6
What is the name of the salt formed by the complete neutralization of sulfuric acid with lithium hydroxide? Choices: 1. hydrogen sulfite 2. lithium sulfate 3. lithium hydride 4. lithium sulfide
What is the pH of a .0078M solution of KOH? Choices: 1. 2.2 2. -2.2 3. -11.9 4. 11.9
What is pH of a .0045M HCl solution. Choices: 1.2.3 2.-2.3 3.11.6 4.-11.6
Boric acid, H3BO3, is found in some laundry detergents, antimicrobials, and pesticides. With a Ka = 5.8 x 10^-10 it is a weak acid that behaves as a monoprotic acid. Assume you titrate 20.0 mL of 0.11 M boric acid with 0.100 M NaOH. (Show work) 1. Write the equation: 2. What is the pH of the solution before titration begin
You have an unknown organic compound that is soluble in acetic acid. If 39.35g of this compound in 29.95ml of acetic acid (density of acetic acid is 1.0492g/mL) has a freezing point of 8.650 degrees Celsius, what is the molar mass of this organic compound? The freezing point of acetic acid is 16.60 degrees Celsius and the fre
Which ion(s) is/are spectator ions in the formation of a precipitate of AgBr via combining aqueous solutions of CoBr2 and AgNO3? a. Co2+ and Ag+ b. Co2+ and NO3- c. NO3- and Br- d. NO3- e. Br- Which of the following is an exchange reaction? a. 2SO(g) + O2(g) ---> 2SO2(g) b. CaCO3(s) ---> CaO(s) + CO2(g) c. F
Calculate the pH upon diluting 2ml of 2 N HCL to a final volume of 100 ml? Calcuate the pH upon addition of 0.0075 mole of solid NaOH to 100 ml of a 0.1 M solution of acetic acid (pKa=4.7)? If equal molar amounts of Na2HPO4 and NaJpo4 are mixed in water, calcuate the resulting pH. The pKas of phosphoric acid are 2.1, 7.2,
-------------------------------------------------------------------------------- Do you feel inclined to think that titration of acid and base at equivalence point will always yield a neutral solution? Well the answer is no. Learn from the following excersie. Weak Acid - Strong Base Titration. a 50.0-mL portion of 0.200
Please help with the ones marked red. (See problem set in attached file).
A 50.0-mL portion of 0.200 M HCOOH is titrated with 35.0 mL of 0.200 M KOH. What is the pH after this titration is complete?
Preparing a Buffer. The pH of blood is 7.40. Calculate the [HCO3-] / [H2CO3] ratio of a bicarbonate-carbonic acid buffer system that will effectively maintain a sample of blood at a pH of 7.40. Hint: the Henderson-Hasselbalch equation is useful for this type of problem.
A buffer solution is made of 0.100 M HOCl and 0.250 M NaOCl. What is the pH of the resulting solution when a 15.0-mL portion of 0.200 M HCl is added to 100.0 mL of the buffer?
What is the pH of a solution that contains 0.250-M benzoic acid and 0.600-M sodium benzoate?
Hello, I am trying to find out how to plug in to calculator, to solve for PH, POH and others by using what was given. Hope I provided more information this time
Which of the following cannot act as a Lewis base? A. Cl- B. NH3 C. BF3 D. H2O
A 0.200 M aqueous solution of HI has a pH of _____ @ 25 C?
Calculate the concentrations of hydrogen ion and hydroxide ion at 25 degrees C. 1. Aniline, C6H5NH2, is used in the manufacturing of some perfumes. What are the values for a 0.035 M solution? Kb= 4.2 x 10-10 [H+]= [HO-]= 2. For a solution in which 10.0 mL of 0.100 M HCl is added to 25.0 mL of 0.100 M NaOH [
1. A buffer was prepared from equal molar quantities of acetic acid, HC2H3O2 and sodium acetate, NaC2H3O2. Explain how the buffer keeps the pH of the solution at about the same value (a) after the addition of a few drops of a dilute HCl solution and (b) after the addition of a few drops of a dilute NaOH solution. Use reaction eq
1. Will the solution formed by dissolving each of the following salts in water be basic, neutral or acidic? Write the equation to show how each ion of each salt affects the PH of the solution. 1. Na3PO4 2. NH4Cl 3. CH3COONa Please show each step in detail.
Please provide assistance with the following questions: 1. Processed cheese must be at a pH of 5.5 to 5.9 to prevent the growth of unwanted microorganisms. The quality control supervisor receives a report that a sample has a [OH-] of 1.2x10^-8. Find pH, pOH, [H+] of this sample. 2. How many grams of potassium hydroxide,
Please can you help me, I need to find balanced chemical equations for: a) The reaction of calcium phosphide and water to produce phosphine and calcium hydroxide; b) The oxide formed when phosphorus burns in air, dissolves in water to give a solution of phosphoric acid (H3PO4).
I have a selection of apparatus and materials that I could use to prepare a gas jar of dry phosphine. I have the following pieces of apparatus to use:- Wash bottle Polythene connectors Dropping funnel with rubber stopper Bent glass tube Filter funnel with paper U-tube Porcelain boat Gas jar Round bottomed flask w
In chemistry, I am not sure what "pkw" stands for.
What is the pH of 0.50-M sodium benzoate? The benzoate ion (C7H5O2-) is the anion of benzoic acid.