Determine the concentrations of the ionic species present in a 0.402 M solution of the NaO2CCOCH2CO2Na. (pKa1=3.40, pKa2=5.11 for HO2CCOCH2CO2H

Q: Suppose 0.010 mol of each of the following compounds isdissolved (separately) in 1.0 L water: KNO3,…

A: In aqueous solutions, conductivity is based on the electron flow. It measures the ability of water…

Q: Which of the following compounds is an oxidizing agent only: a. KNO2; O b. HNO3; O c. NH3; O d. N2

A: Oxidizing agent is substance which can oxidize the other species but reduce itself hence, oxidizing…

Q: A mixture of 2.00 g BaCl2.2H2O (molar mass = 244.2g/mol) and 1.00 g of NazPO4.12H20 (molar mass =…

A: Given that:  Mass of BaCl2.2H2O = 2.00g  Molar mass of BaCl2.2H2O = 244.2g/mol Moles =…

Q: A 93.6 g sample of ground water is found to have a lead concentration of 15.65 ppm. Calculate the…

A: Given : Mass of sample = 93.6 g Concentration of lead = 15.65ppm

Q: 7) Would an aqueous solution of MGB12 contain ions? If so, how many ions would occur per formula…

A: MgBr2 is an ionic solid. It has aqueous solubility.

Q: What is the percent concentration by mass of NaCl in a 200 g of solution that contains 0.390 mol of…

A:

Q: 2.) 1.5g of Calcium fluoride (CaF2) B. Calculate the mass of the substance for each given. 2.) 5.3…

A: A. 2) given, mass of calcium fluoride (CaF2) = 1.5 g moles of calcium fluoride (CaF2) = ? molar mass…

Q: Classify each of the following as an oxide, acid, base or salt.  1. Pb(ClO2)2  2. Ca2O3  3.…

A: We need to categorize each of the given compound as acid, base, salt or an oxide.

Q: Why can't both S2- and SO32- be present in the same solution? Explain, and write the equation

A: S2- sulphide ion:  Sulphide  is an inorganic anion of sulfur with the chemical formula S2− or a…

Q: What ions formed when Sr(C2H3O2)2 dissociates in water are?

A: SnC2H3O22 dimociates in water as-Sn2+ + 2 C2H3O2-

Q: Write the equation for the reaction associated with the Ka2 of sulfuric acid, H2SO4. Write the…

A: Since  the  reaction  associated  with  Ka2 is basically the  second dissociation of acid reaction…

Q: oxidising agent.

A:

Q: Calculate the percentage of NaOCl Mass of NaOCl in sample: 0.8933g Net Volume of Na2S2O3: 24mL…

A:

Q: In cation exchange reaction, how many grams of K+ will replace 2 meq of Ca2+ if K+ has a atomic…

A: One mole is the atomic mass or molecular weight per liter of each cation or anion.  K+ = 39 g/mol…

Q: What test could you perform to detect the presence of CO3 2-  ion? Write a reaction and explain what…

A: If a compound)salt contains Carbonate ion as negative anion, then it can be determined by help of an…

Q: A 500 mL sample of waste water contains 42.65 ug of mercury, Hg. If the density of the sample is…

A: By calculating the mass of solution we can find concentration of solution in ppb.

Q: Write a balanced equation for the reaction of aqueous sodium carbonate 1Na2CO32 with aqueous nitric…

A: A chemical equation is the valid expression in the form of symbols and formulas of a chemical…

Q: How long does it take for half of the sample to isomerize? (k = 2 x 104s1)

A: As it is given  k = 2*10^-4 s^-1  And from graph of ln(CH3NC) Vs time which is a straight line .…

Q: Complete and balance the following equations: (a) CaO(s) + H2O(1) (b) Al>O3(s) + H*(aq) (c) NazO2(s)…

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

Q: State whether an aqueous solution of each of the following substances conducts an electric current.…

A: Given:To state whether an aqueous solution of each of the following substances conducts an electric…

Q: complete and balance the reaction equation Rh2SO4 (aq) +      CaI2 (aq) ⎯→

A: In this question, the given equation is to completed and balanced. The given equation is : H2SO4 aq…

Q: 5. When substances form solutions with water, they always dissolve, but sometimes they also…

A: Interpretation: We have to explain the difference between dissolve and dissociate.

Q: When 0.2 moles of Ca reacts with 880 grams of water, 4.48L of hydrogen gas form. How would the…

A:

Q: The characteristic colour of the 3+ Fe(OH2)6 " ion is purple, but aqueous solutions appear yellow…

A: Given information: [Fe(H2O)6]3+ is purple in color but its aqueous solution appears yellow in colour…

Q: Write a net ionic equation for C2O42- and Ba2+

A: The net ionic equation for C2O42- and Ba2+ is as follows,

Q: Complete and balance the following direct union equations. please answer all a. K + Br2   → b. Mg…

A:

Q: Predict the electrolytic activity of NaBr and C2H5OH, respectively.

A: 1. Substance that dissociates into ions are called electrolytes and the substance that never…

Q: What is the mass in grams of solute in 4500 ml of a solution that contains 33.4 * ppm of SnC12?…

A:

Q: Find the pH of a 0.145 M HCIO2(aq) solution. For HCIO2, Ka = 0.011. O 0.84 O 1.46 O 1.34 O 1.40

A: Given: Concentration of HClO2 = 0.145 M And Ka of HClO2 = 0.011

Q: Describe how to calculate the ocean concentration of CO32- using the data collected from 2015. You…

A: pH = -log[H+]; HENCE FROM pH we can get [H+] concentration.

Q: It was found that 25 ml of a sodium hydroxide solution, which per liter contains 4 g of commercial…

A: Given data contains, Volume of sodium hydroxide is 25mL. Mass of commercial caustic soda is 4g.…

Q: khen a metal is burnt in a strean of nitrogen, if forms a nitride. If the weight of the netal…

A:

Q: Determine the concentrations of the following ionic species present in a 0.350 M solution of Na2SO3.…

A:

Q: It is estimated that the total amount of oxygen (O2) contained in BIFS is equivalent to 6.6% of the…

A: Amount of oxygen present in atmosphere of BIFs = 6.6% of 21% of  5.01× 1018 Kg.    = 6.6100× 21100 ×…

Q: Calculate the number of moles of H2O that will be produced by the reaction of 1.46 mole of solid…

A: Magnesium hydroxide reacts with hydrochloric acid to form magnesium chloride and water. The equation…

Q: What is the stoichiometric ratio between Cu2+ and Na2S2O3

A: In the reaction between Na2S2O3 and Cu2+ in a solution, copper thiosulfate CuS2O3 is expected to be…

Q: Which of the following will not react with FeCl2 (aq) A.   Na (s) B.   KOH (aq) C.   Ca(NO3)2…

A: In this question, we will see which one can not react with FeCl2  You can see details Solution…

Q: The calcium from a sample of limestone weighing 607.4 mg  was precipitated as CaC2O4 (128.10 g/mol)…

A: The mass of the limestone sample is = 607.4 mg The mass of CaCO3 formed by ignition is = 246.7 mg…

Q: Explain how measuring carbon isotope (12C, 13C,14C) abundance in atmospheric CO2 provides evidence…

A: Carbon occurs predominately in three isotopic forms, C-12, C-13 and C-14. Out of these, C-12 is the…

Q: 250% Explain why KCI is an ideal salt to be used in salt bridge.

A: Dear student I have given answer to your question in the image format.

Q: Which of the following species will be oxidized by 1M HBr? a. Na b. Hg c. Mn2+

A:

Q: Given: 0.35g NaCl, 0.25 g NaHCO3, 0.15 g KCI & 2 g C6H1206 are present in 100 mL ORS solution (MW:…

A:

Q: Write chemical equations for each of the following chemical and physical processes: (a)…

A: When an acid reacts with a base to form salt and water, known as neutralization reaction.

Q: Because the oxide ion is basic, metal oxides react readily with acids.(a) Write the net ionic…

A: Net ionic equation is the the one that involves only those ion which are actually causing the…

Q: A solution was prepared by dissolving 0.000245 Kg of Na2SO4 in water to give 500 ml. Calculate the…

A: Normality: It can be defined by saying the number of gram equivalents of the solute dissolved per…

Q: What mass of Ba(IO3)2 (487 g/mol) can be dissolved in 1 L of water at 25°C? Ba(IO3)2 = Ba2+ + 2 IO3…

A: Ksp is the product of concentration of ions of sparingly soluble salt.

Q: Calculate the percent composition of boron in sodium borate. Group of answer choices 15.230%…

A:

Q: 31, + 6 KOH → 5 KI + KIO, + 3 H,0 Where, I, = elemental Iodine KOH = Potassium hydroxide KI =…

A: A balanced equation between iodine and potassium hydroxide that give KI as the main product.

Q: Boiled lobster syndrome” is seen in poisoning with: A. Boric Acid B. Oxalic Acid C. Sulfuric Acid…

A: Poisoning is a condition when a toxic substance enters the body.   The oxidizing agent is the…

Q: Eutrophication is Loss of biodiversity due to excess of N2 gas in water Loss of biodiversity due to…

A: Eutrophication is the process in which a water body becomes overly enriched with nutrients, leading…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.