Write the equation for the reaction of Pb2 with CrO42-.

Q: 75 ALhe chooy deced to I Mm Crbon (NCO oesampled water in the school takin onder to restore e…

A: Question 7.3.1 cannot be answered as nowhere in the question it has been mentioned that how much HCl…

Q: What is the role of deuterium?

A: The role of deuterium has to be given.

Q: 2. Approximately 0.40 hectare of rainforest are capable of absorbing 1000 kg of CO2. Given that the…

A: T = 310K  P = 1atm  Amount of CO2 = 350kg  Molar mass of CO2 = 44.01g/mol R = gas constant = 0.0821…

Q: What is the pH of a 0.0300 M solution of NaNO2? (K, for HNO2 = 4.00 x 104) %3D O 7.00 O 7.94 8.81…

A:

Q: The following solutions were prepared: Solution A: 0.01 mole of perchloric acid (HClO4) dissolved…

A: Given- Moles of HClO4 = 0.01 Volume of water = 1L Moles of ethylamine hydrochloride = 0.01  Volume…

Q: How is lead ion separated and identified in group 1 cation analysis?

A: Qualitative analysis of Lead ion (Pb2+) ; In group I cation analysis, the presence of Pb2+ is…

Q: Write the basic equilibrium equation for PO₄³⁻

A: Bronsted-Lowry acid-base theory: According to the Bronsted-Lowry acid-base theory, acid is a…

Q: 1. Write a balanced net ionic equation for the reaction between iron (III) nitrate and sodium…

A:

Q: If 5.585 g of Fe31 were reduced in the reaction Fe31 1 V21 S Fe21 1 V31, how many coulombs of charge…

A: Given, Mass of Fe3+ = 5.585 g Fe3+ reduced in the reaction Fe3+ + V2+ → Fe2+ + V3+ Here we are asked…

Q: write the acidic equilibrium equation for HPO42-

A: we have to write the acidic equilibrium equation for HPO42-

Q: Where does 179.8 Fe(NO3)2 came from?

A: to convert the no of moles into mass ,use formula,no of moles of substance =molar mass of substance…

Q: If the equilibrium constant for 3A+3B= 3C is 0.169, then what is the equilibrium constant for 2C=…

A: Consider the information is as follows; 3 A   +    3B     ⇌     3C                 Keq=0.169…

Q: Draw the structure of EDTA and write the reactions in the ionization steps.

A: This question have to subparts, in first part draw the structure of EDTA and in second part we write…

Q: A 3.026 grams of Cu (II) salt is dissolved in water and then diluted to 250 mL in a volumetric…

A: Given, molarity of Na2S2O3 solution =0.04668 M Volume= 23.33 mL No.of moles of Na2S2O3 = molarity×…

Q: Calculate the pH of an aqueous solution prepared by dissolving 5.61 g of KOH pellets in water and…

A: Mass of KOH = 5.61 g Volume = 0.500 L Molar mass of KOH = 39.10 + 16.00 + 1.008 = 56.108 g/mol pH of…

Q: What is the pH of a solution containing 0.327 mol L-1 of HCl and 1.041 mol L-1 of a weak acid with…

A:

Q: Neutralization of phosphate . Given that phosphoricacid (H3PO4) can give up three protons with…

A: Titration curve for H3PO4 versus NaOH

Q: Calculate the PH and the POH FOR a solution that is ISM IN Hellz and .04M IN HALO₂, Heloz K; FOR…

A: HClO3(aq) is a strong acid, whereas HClO2(aq) is a weak acid with Ka = 1.1*10-2  Given [HClO3(aq)] =…

Q: n measures the ar

A: Equilibrium constant expression is ratio of concentrations of products over the reactants.

Q: "): Calculate the pH of a buffer solution that is 0.20 M in sodium hypobromite (NaBro) and 0.10 M in…

A: Given;

Q: The digestion of a 0.1159 gram sample of a phosphorous-containing compound in a mixture of HNO3 and…

A:

Q: Why does dry HCl gas not change the colour of the dry litmus paper?

A: Colour of the litmus paper is changed by the hydrogen ions. Dry HCl gas does not contain H+ ions.

Q: 2. Aluminium sulphate (alum) is added to water with a pH of 7.2. Based on the reaction below,…

A: Dose of the alum = 30 mg/mL = 0.030 g/L The concentration of alum solution was prepared in Al+3…

Q: Chemical formula of Pb2+ And PO43-

A:

Q: Why is an excess of Fe2+ necessary in the test for NO3- ? Explain, and write the equation

A: Oxidation is defined as process of addition of oxygen or an electronegative element to the…

Q: Given the following reactions: 3C = D K= 8.33 x 104 D= 3A + 3B K= 5.33 x 102 Calculate the value of…

A: Answer: Equilibrium constant is the ratio of active masses of products and active masses of…

Q: I am not understand these problems. Can someone help?

A:

Q: Write the equation for the formation of silver acetylide by adding ammoniacal silver nitrate to…

A:

Q: How much is the pKa for ammonium in 21.9 degree celsius?

A: The pka for ammonium in 21.9 degree celsius is 9.3.

Q: 10. The oxides of Group 15 react with water to give acids. Which of the following chemical equation…

A:

Q: Explain the importance and applications ofshape memory alloys

A: Shape memory alloys are those alloys which can be deformed on cooling but return back into their…

Q: The value of Ka for nitrous acid 1HNO22 at 25 °C is given in Appendix D. (a) Write the chemical…

A: The acid dissociation constant is the equilibrium constant of the dissociation reaction of an acid…

Q: Given 0.75 M solutions of acetic acid (pKa = 4.76) and sodium acetate, what is the ratio of…

A: Given: PKa of acid = 4.76 pH of solution = 6.3

Q: Write the equation for thermal decomposition of CaCO3 and Mg(NO3)2

A: When CaCO3 is heated at high temperature, it is decomposed to calcium oxide and carbon dioxide as…

Q: Write the balanced equation for the formation of ClF3 gas from the elementalhalogens?

A: When two different halogens reacts together, inter halogen compounds are formed. They can be…

Q: 3. Write the equation for the equilibrium that occurs when [Ni(H2O)6]* reacts with Cl-.

A: We’ll answer the first part since the exact one wasn’t specified. Please submit a new question…

Q: Although KOH, RÜOH, and CSOH have little association between metal and hydroxide in aqueous…

A: To calculate the fraction of lithium in the form LiOH(aq) at equilibrium in 1.00 F LiOH solution.

Q: Determine the concentration of Ca2+ in a solution obtained by treating solid CaSO3 with 0.449 M HCl.

A:

Q: Fluoride treatment strengthens tooth enamel by converting hydroxyapatite, Ca5(PO4)OH, into…

A: Ca5(PO4)3F(s) ----> 5Ca2+ + 3PO43-  + F-  The solubility product constant,Ksp is the equilibrium…

Q: What is the chemical name for SnO2?

A: Chemical names of compounds are written by first writing the name of cation followed by the name of…

Q: 4. Why do silver salts dissolve readily in 3 M HNO3? Why is the fresh chlorine water critical to…

A: Soluble silver salts dissolve in H2O if it is either neutral pH or acidic. But, if the water is…

Q: 3. Hypochlorous acid (HCIO) is a weak acid. A 1.00M aqueous solution of this acid gives has a pH of…

A: Recall the data, Molarity of HClO=1.00 M pH=3.77  pKa of HClO ?

Q: Write the reactions of EDTA in the ionization steps.

A: EDTA stands for - Ethylenediaminetetraacetic acid is polyprotic acid with 4 different ionization…

Q: A 0.1017-g sample of KBro, (MM 167.0) was dissolved in dilute HCl and treated with an unmeasured…

A: To calculate the molar concentration of sodium thiosulfate using given volume , we need to calculate…

Q: 9. Write balanced equations for (a)238 U(a, n)'Pu, (b) * N(a, p)0, (c) Fe(a, B)Cu Write bolanged…

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

Q: A sample of an industrial waste water is analyzed and found to contain 27.0 ppb Cr³+. How many grams…

A: Given that -  ppb Concentration of Cr3+ in industrial waste water = 27.0 ppb  Total mass of waste…

Q: Although KOH, RBOH, and CsOH have little association between metal and hydroxide in aqueous…

A: To calculate the fraction of lithium in the form LiOH(aq) at equilibrium in 1.00 F LiOH solution.

Environmental Pollution

Environmental pollution occurs due to some unwanted alteration in the surroundings which results in unfavorable effects on all organisms of that surrounding.