Q: The pH of a solution made up to contain 0.240 M H3PO4 and 0.480 M NaH2PO4 is- (Ka1= 7.11 x 10-3;…
A: Buffer solution are which can resist any change in PH when either acid or base are added and the PH…
Q: Distinguish between strong and weak electrolytes?
A: To: Distinguish between strong and weak electrolytes?
Q: The hypochlorite ion, ClO-, acts as a weak base. When ClO- acts as a base, which atom, Cl or O, acts…
A: To know which is the proton acceptor we see the valancy of the Cl and the O. In O there is two…
Q: 2), 3), 4)
A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…
Q: Acetic acid is a weak acid, meaning it does not fully dissociate in water. Instead, there is an…
A: The solution is as follows:
Q: 25.0mL of 0.405M Ba(OH)2 (aq) was required to neutralise 27.1mL HCl (aq). What is the molarity of…
A:
Q: Four solutions of an acid dissolved in water are sketched below, as if under a microscope so…
A: According to the Arrhenius theory, the substance that gives hydrogen ion H+ in the aqueous solution…
Q: Consider the following ions: sulfate (SO4 -2), acetate (C2H3O2 -),hydrogen carbonate(HCO3 -1),…
A: Amphoteric ion is defined as the ion which can donate H+ ion to a base or can accept H+ ion from an…
Q: A student carried out a similar experiment using H,SO, instead of HCI. a) Write and balance a…
A: Acid and base always undergo neutralization reaction and the resulted products are a neutral salt…
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A: We have to predict the reaction of methanol with acid and base.
Q: A drop of phenolphthalein is added to a solution of 1.0 M H2SO4 with a volume of 10.0 mL. The…
A: phenolphthalein is an acid base indicator which is colorless in acidic medium and pink in basic…
Q: What concentration of barium hydroxide is needed to give an aqueous solution with a pOH of 1.480?…
A: Write the expression for pOH. pOH = -log[OH-] where [OH] represent the concentration of OH.
Q: The strong electrolyte in the following compounds is: O KBr CH3COOH H20 О нF
A: Strong electrolytes are those which dissociates completely in the solution. Among the given options,…
Q: Calculate concentration, when 0,2 moles of ammonium carbonate ((NH4)2CO3) is dissolved into water in…
A: The number of moles of a substance is determined as the mass of the substance upon its molar mass.…
Q: iv) What name is given to the solution formed when all the NaOH has reacted? Calculate the p" of the…
A: The question is based on the concept of titrations. we are adding acetic Acid to the sodium…
Q: The pH of an aqueous solution of ammonium chloride, NH4Cl is ________ because ________. a.7;…
A: We will write the correct option
Q: Discuss the justification for this statement: “Although one does not normally regard NH+4 as an…
A: An acid is the species which gives proton when present in an aqueous solution. The tendency of an…
Q: Which of the following is a strong electrolyte? * O aniline O NH40H O Acetic acid HCI
A: A substance whose aqueous solution conduct electricity is known as electrolyte. Based on degree of…
Q: 4.00 g KOH was added to the less basic solution in number 3. What will be the resulting pH of the…
A: Answer:- firstly the less basic solution is identified using the concentration of hydroxide ions…
Q: Four solutions of an acid dissolved in water are sketched below, as if under a microscope so…
A: According to the Arrhenius theory, the substance that gives hydrogen ion H+ in the aqueous solution…
Q: When 22.6 mL of 0.229 M hydrochloric acid (HCI) and 22.6 mL of 0.229 M ammonia (NH3) are combined,…
A:
Q: KHP I Trud 0.3130 9 16.72mL
A: For trial 1 Mass of KHP = 0.3130 g Molar mass(MM) KHP = 204.2 g Moles of KHP = mass/MM =…
Q: Does the neutralization enthalpy change depending on whether the acid or base is strong or weak? Why…
A: The reaction of 1 equivalent of H+ to 1 equivalent of OH- to produce 1 equivalent of H2O, is called…
Q: If 34.6 mL of a 0.68 M NaOH solution is added to a 51.9 mL sample of a 0.68 M weak acid, HA , what…
A: 34.6 mL of a 0.68 M NaOH solution is added to 51.9 mL sample of a 0.68 M weak acid, HA (ka = 1.8 x…
Q: Write a net ionic equation for the overall reaction that occurs when aqueous solutions of sulfurous…
A: Balaned equation is equation in which equal number of atoms of every element is present on both…
Q: if magnesium hydroxide were used instead of naoh how many moles would it take to combine with three…
A:
Q: Indicate whether following reactions is a strong, weak, or nonelectrolyte represented in the…
A: ->Strong electrolyte is substance which can dissociate completely in to their ions when dissolved…
Q: Which of the following is the example(s) of acid-base reaction? H H `H H -Br II IV OH H-CI OH
A: Acid- The species which is able to donate H+ ion. Base- The special which is able to accept H+…
Q: Write a net ionic equation for the overall reaction that occurs when aqueous solutions of sodium…
A: Steps to write net ionic equation 1. Write the balanced equation 2. Include states of each…
Q: How many mls of .1 M NaOH would be needed to react with 20 mls of .05 M H3PO4 in the neutralization…
A: The reaction taking place will be 3 NaOH + H3PO4 ----> Na3PO4 + 3 H2O Hence from the above…
Q: Write the neutralization reaction between each acid and base a. HNO3 and Ba(OH)2 b. H3PO4 and…
A:
Q: If the molar concentration of OH- is 1.0 x 10-7, the pH is what?
A: Applying formula of pH POH= -log[OH-]
Q: pOH of an aqueous solution of 8.35x102 M potassium hydroxide
A: The pOH of an aqueous solution of 8.35×10-2 M potassium hydroxide is to be determined.
Q: -SO,Na СHCI; ? + КОН > ? +
A:
Q: Calculate the ΔH for the reaction: N2O4 + CO -> N2O + CO2. Show the complete and step by step…
A: Given reaction- N2O4+CO --> N2O+CO2
Q: value
A: When water is self ionized then water and it's ion present in equilibrium so that we used…
Q: Write the net-ionic neutralization reaction that occurs when HI (aq) is added to the buffer solution…
A: When an acid is added to acidic buffer solution .it reacts with salt of buffer solution and gives…
Q: The strength of a phosphoric acid sample is found to be 40% P2O5 by weight. Find the actual…
A: Phosphoric acid (H3PO4) also known as orthophosphoric acid is a weak acid used to make phosphate…
Q: Acid strength decreases in the series HI > HSO4 > HF > HCN. Which of these equal molar salt…
A: The salt which produced weakest acid will show highest pH.
Q: What is the concentration of hydroxide ion in a 0.76 M aqueous solution of hydroxylamine, NH2OH?…
A: Given data set: Molarity of NH2OH= 0.76 M Kw= 1*10-14 Kb = 1.1*10-8 we need to calculate the…
Q: e the volume of NaOH solution the student will need to add to reach the final equivalence point.…
A: We should equal equivalent of both acid and NaOH ion to get mass of oxyliac acid Equivalent =…
Q: 1. (1 point) The [H+] of°coffee is about Ix 10. Its pH is 2. (1 point) The [OH-] of baking soda is…
A: Required formulas: pH = -log[H+] pOH = -log[OH-] pH + pOH = 14
Q: xercise 1: Derive a similar relationship for the basic-type ndicator. ase-type indicator: conjugate…
A:
Q: Fill in the left side of this equilibrium constant equation for the reaction of dimethylamine ((CH,)…
A: The weak base given is (CH3)2NH Since weak base reacts with water to produce conjugate acid and…
Q: H+
A:
Q: True or false ___________1. The acidity of the solution is higher with higher pH. ___________2. pH…
A: In the given question we have to do True or false of the following question. 1. False , because…
Q: The [H3O+] = 4.7 x 10-5 M for the HC7H5O2 and NaC7H5O2 solution. What is the pH of the solution?
A: Given H3O+ concentration of the solution, [H3O+] = 4.7*10-5 M
Q: LIOH(aq) is classified as a • base. The reaction equation with water utilizes which of the following…
A: LiOH is classified as a Strong Electrolyte and therefore 100% dissociation when dissolved in aqueous…
Q: For the reaction: HCI 0° C
A: Two possible product can be formed. At high temperature 1,4- addition product (thermodynamic…
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- Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the formula KHC8H4O4. This is often written in the short-hand notation as KHP. If 25.0mL of a potassium hydroxide solution are needed to neutralize 2.26g of KHP, what is the molarity of the potassium hydroxide solution? Potassium hydrogen phthalate sometimes called potassium biphthalate, as shown on this bottle is an acid that is convenient to store and use because it is a solid.Lead poisoning has been a hazard for centuries. Some scholars believe that the decline of the Roman Empire can be traced, in part, to high levels of lead in water from containers and pipes, and from wine that was stored in leadglazed containers. If we presume that the typical Roman water supply was saturated with lead carbonate, PbCO3 (Ksp = 7.4 1014), how much lead will a Roman ingest in a year if he or she drinks 1 L/day from the container?What volume of 0.50 M H,SO, must be added to 65mL of 0.20 M H2SO, to give a final solution of 0.35 M? Assume volumes are additive.
- Given the mole ratio of HCl to NaOH is 1:1 in the balanced acid base reaction A 15.52mL sample of HCl is titrated to endpoint witg a 32.08mL sample of NaOH, which has a known molarity of 0.976M. How many mole of HCl were used in this reaction?Given the mole ratio of HCl to NaOH is 1:1 in the balanced acid base reaction A 15.52mL sample of HCl is titrated to endpoint witg a 32.08mL sample of NaOH, which has a known molarity of 0.976M. How many moles of NaOH were used in this reaction?The sulfur produced by aqueous chemistry in the previous problem is a destructive environmental pollutant when it is produced by the combustion of sulfur impurities present in fossil fuels. In the atmosphere, sulfur dioxide (SO2(g)) can dissolve into with water (H2O(l)) droplets to form a sulfurous acid (H2SO3(aq)) solution and return to the ground as acid rain. Write a balanced chemical equation for the production of sulfurous acid by this reaction.
- To determine , by gravimetric analysis, the concentration of barium ions (Ba2+) in a given solution, 25.00cm3 of it are pipetted into a beaker and an excess of dilute sulphuric acid is added to it. The precipitate then obtained (BaSO4) is filtered, dried and weighed. The mass of the precipitate is found to be 1.167g Calculate the concentration of barium ions in the solution? (only 2 decimal places). _________Mol/LThe concentration of lead in an industrial waste stream is 0.28ppm. what is it's molar concentrationNitrous acid (HNO2) disproportionates in acidic solutionto nitrate ion (NO3- ) and nitrogen oxide (NO). Write abalanced equation for this reaction.
- The concentration of CO in air is determined by passing a known volume of air through a tube that contains I2O5, forming CO2and I2. The I2 is removed from the tube by distilling it into a solution that contains an excess of KI, producing I3-. The I3-is titrated with a standard solution of Na2S2O3. In a typical analysis a 4.79-L sample of air is sampled as described here, requiring 7.17 mL of 0.00329 M Na2S2O3 to reach the end point. If the air has a density of 1.23 × 10–3 g/mL, determine the parts per million CO in the air25 mL of a bleach (NaOCl) sample is diluted to 500 mL. An excessive amount of KI is added to the 20 mL solution taken from here, and the released I2 is titrated with 35.5 mL of 0.0409 M NaS2O3. Accordingly, calculate the weight percent by volume of NaOCl in the sample.(MaNaOC:74,4 g/mol)In a reaction of hydrochloric acid with sodium sulfate, theproducts would include the gas SO2. True or false?