Consider the balanced equation of KI (molar mass=166.0 g/mol) reacting with Pb(NO3)2 to form a precipitate. 2 KI (aq) + Pb(NO3)2 (aq) PbI2 (s) + 2 KNO3 (aq) What mass of PbI2 (molar mass=461.0 g/mol) can be formed by adding 1.91 g of KI to a solution of excess Pb(NO3)2?

Q: Procedure: 1) Preparation of 100 mL 0.1N Na2CO3 2) How much is the molarity of the prepared solution...

A: Normality is the no of moles of solute dissolved in 1lit of solution where as molarity is the no of ...

Q: Consider the following reaction: 2 NO(g) + Cl2(9)= 2 NOCI(g) At a certain temperature, an equilibriu...

A:

Q: Item 2 I Review I Constants I Periodic Table Part A For rotation about the C-3-C-4 bond of 2-methylh...

A: There are 6 conformer of a compound in the given  newmann projection. Each conformer comes when one ...

Q: Question 10 Consider placing a piece of iron, Fes, into a 1 M solution of cadmium ion, Cd2* ag). Sel...

A:

Q: 67- g/ Give a reaction mechanism OH EtO,CN=NCO,Et ʼNO2 CH2NO2 PPH3 92%

A: This reaction is  Mistonbou inversion reaction where inversion of a nucleophilic centre takes place ...

Q: e degree of dissociation

A:

Q: You are titrating 20.0mL sample of 0.131 M Ba(OH)2 with 0.350 M HCL. (a) What volume in mL of HC...

A: Answer -

Q: Decide whether each of the following will cause an aqueous solution to be acidic, basic, or neutral:...

A: The compound which remove H+ or its aquous solution form a compound which remove H+,this compounds a...

Q: Drag and drop the product of the following fatty acid reaction. + CH;NH/H

A:

Q: Two peaks have k1= 662 and k2 selectivity factor (a)? Select one 李 a 113 b. 1.23 c 1.17

A: 1. Answer - The correct option is (b) = 1.23 Explanation - According to the question - we have to se...

Q: sodium hydrogen carbonate (NaHCO3) was reacted with an excess of 5.00 M hydrochloric acid (HCI). The...

A: Reaction 1: NaOH (s) + HCl (aq)----> NaCl(aq) + H2O(l) Reaction 2: NaOCO3 (s) + HCl (aq)----> ...

Q: molecular geometry

A:

Q: What is crystallization ? Explain

A: Given      crystallization   We need to explain crystallization.    

Q: Complete this reaction: He Br He + He + p

A:

Q: which class of enzymes catalyzes the given reaction

A:

Q: What is the energy (in kJ) of 3.00 moles of photons of visible light, that all have a wavelength of ...

A: Given mole = 3 

Q: In any reaction, the percent yield is affected by many factors, such as having less than 100% the pu...

A: The mass of a compound can be obtained by the multiplication of the mass of the reactant to the perc...

Q: Which one of the following statements is false O One molecule of HBr will yield one H+ ion(s) One mo...

A: We have to select the false statement. The given statements are  One mole of HBr will yield one H+ ...

Q: Balanc the chemical equation

A: In balanced chemical reactions the number of particular kind of atom should be same in both the reac...

Q: why is it impossible to carry the titration of HCl solution with the NaOH solution to pH 14?

A: In titration, titrant is added dropwise to the titre solution and at the end burette reading is note...

Q: In this experiment 2.00 mols of NOCI are placed in a 1.00 L flask @ 298 K. After equilibrium is achi...

A: Kc IS CALCULATED USING A FORMULA, FOR WHICH WE NEED TO DETERMINE EQUILIBRIUM CONCENTRATION OF EVERY ...

Q: mountain dew has a pH of 3.3. what is the concentration of H3O+ ?

A:

Q: 1. Balance the following chemical reaction: C2H5OH • 02 --> CO2+ H20 2. Balance the following chemic...

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both...

Q: t reagents

A:

Q: 8. From the given starting material provide a reasonable synthetic route to the following molecule. ...

A: Organic reaction mechanisms:

Q: of diagrams (a

A:

Q: Identify (circle) the strong acids from the list below: H,SO, HNO, HCIO, HCI HCIO, H,S Identify (cir...

A: Acids are those substance which releases H+ ion when dissolved in water while base are those substan...

Q: If I have 3.00 g of LiHCO3 how many grams of Li2CO3 are produced? (hint: balance chemical equation f...

A: Recall the given reaction    2LiHCO3s → Li2CO3s + H2Og + CO2g Here 3.00 g of LiHCO3 is heated accord...

Q: For the reaction H2CO3 + H2O ↔ H3O+ + HCO3-, H3O+ is the conjugate base. true or false?

A: A conjugate base is formed when an acid loses a proton/ hydrogen ion. 

Q: (van’t hoff) use van’t hoff to calculate freezing and boiling points; don’t know what went wrong

A: Vant Hoff factor,i = 1.83 Molality of solution = 7.75 × 10-2 M Kf = 1.86 °Ckg/mol Kb  = 0.512 °Ckg/m...

Q: Define 1. Solution 2. Solute 3. Solven

A: Solution is a mixture of two are more than two components. If two components are present it is calle...

Q: В. 0.22

A:

Q: 1. ON THE TABLE BELOW match the correct pair classification Relative ion concentrations pH at 25 C A...

A: pH of an acidic solution is less than 7 and pH of a basic solution is greater than 7.

Q: Determine the pH of a 0.291 M CSOH solution at 25°C.

A: pH of a solution is defined as the negative logarithm of hydroxonium ion concentration. pOH of a sol...

Q: certain reaction has an equilibrium constant of 10.1 at 25oC. [A ⇌ B] What is its ΔG, in kJ/mol, if ...

A: Given equilibrium constant is 10.1

Q: The following NMR and IR spectra were obtained for a molecule with molecular formula C,H402. Draw th...

A: The molecular formula of the given compound is C2H4O2. The NMR spectra of the compound determine the...

Q: 1. Write an equation showing how the mass of the substance sought can be converted to the mass of th...

A:

Q: What are the main components of a spectrophotometer? Choose all that applies. radiation source sampl...

A:

Q: Given the Frost-Ebsworh diagram for uranium: 1. Which is the most thermodynamically stable? 2. Wh...

A: After seeing the Graph we Can Concluded that:

Q: 3.) Express in ppt.ppm, and ppb fra fion the conce n of 250 g salt solution with 0.0045 9 salt disso...

A: Given, Mass of salt dissolved = 0.0045 g Mass of salt solution = 250 g     Required,                ...

Q: What mass of magnesium contains the same number of particles as there are in 6g of carbon 12

A: Given,  Mass of C = 6g  What mass of magnesium contains the same number of particles as there are in...

Q: If the Kh of a weak base is 6.2 × 10-6, what is the pH of a 0.24 M solution of this base? pH =

A:

Q: Gentamicin sulfate Ophthalmic solution has a concentration of 0.3% (w/v) and an E-value of 0.05. • a...

A:

Q: If the pH of a solution is 0, which of the following is true?     [H+] = 10 -14 M, [OH-] = 1 M   ...

A: Which of the following is correct...

Q: g oxidized? OX

A:

Q: The visible absorption spectrum for crystal violet, CV*, is shown in Figure 3. The concentration of ...

A: The given graph is:

Q: Calculate the pH of a 0.10 M HNO, solution.

A:

Q: Define electrolysis. A)Process using chemical energy to cause a nonspontaneous process to occur B)Pr...

A:

Q: 1. A galvanic cell is set up by immersing a silver electrode in 1.0 M silver ion solution to form on...

A: Anode is the electrode on which oxidation takes place and Cathode is the electrode where reduction t...

Q: ny mL of 0.2

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".