) An aqueous solution of ethyl alcohol is made by transfering 4.72 mL of liquid ethyl alcohol to a 200 . mL volumetric flask, and then adding enough water to fill the flask to the mark. What is the volume/volume percentage of ethyl alcohol in the solution? Volume/volume percentage = ________% B)  An aqueous solution of acetic acid is made by transfering 17.5 mL of liquid acetic acid to a 200 . mL volumetric flask, and then adding enough water to fill the flask to the mark. What is the volume/volume percentage of acetic acid in the solution? Volume/volume percentage = ________

Q: Find the oxidation number for each element in the following substance. UO22+ 1. U = 2. O =

A:

Q: Question 6 of 20 What is the molality of ions in a 0.323 m solution of Na2SO4 assuming the compound ...

A: Molality of Na2SO4 solution = 0.323 m  * Assume complete dissociation of compound take place. Molali...

Q: I. Carbon dioxide at 60°C and 34 atm is a real gas. Determine your specific volume using: a. Beattie...

A:

Q: Enumerate one or two impurities that might affect the accuracy of prepared standard solutions of an ...

A:

Q: Question How much heat is required to melt 200 grams of ice? The heat of fusion is 333 J/g. O 6.66kJ...

A: Given-> Weight. = 200 gm Heat of fusion = 333 J/g  

Q: what are there molar mass? K3[Fe(CN)6] and K4[Fe(CN)6]

A:

Q: 1. When a 1.010-g sample of sucrose (C12H22011) is burned in a bomb calorimeter, the temperature ris...

A:

Q: Acidic cations are conjugates of ____ bases, and basic anions are conjugates of ____ acids.

A: If weak base then it's conjugate acid is more acidic .If weak acid then it's conjugate base is more ...

Q: At 1.00 atm and 298.15 K, a solid substance with a molar volume of 100.15 cm3/mol with melting tempe...

A:     At 1.00 atm a solid substance with molar volume 100.15 cm3 / mol at it's melting temperature of ...

Q: Determine the rate law for the reaction A + B → C + D given the following experiment data. Initial T...

A: To find the rate law, first find order of reaction with respect to each reactant.

Q: The redox equation below is balanced. Mg + Fe3+ → Mg2+ + Fe  True or False?

A: No, this is not balance. So, the given statement is False.   

Q: The pK value for HSO3 is 7.19. What mole ratio of K2SO3 to KHSO3 is needed to prepare a buffer with ...

A:

Q: When 35.6L of ammonia and 40.5L of oxygen gas at STP burn, nitrogen monoxide and water form. After t...

A: Volume of ammonia = 35.6 litrep Volume of oxygen = 40.5 litre The balanced reaction is., 4NH3 + 5O2 ...

Q: A 33.8 mL sample of a 0.400 M solution of NaCN is titrated by 0.160 M HCI. Kb for CN is 2.0 x 10-. C...

A:

Q: The rate constant for this first-order reaction is 0.0610s at 400 'C. A - products After how many se...

A:

Q: does the substituent F __ have an electron withdrawing-effect, or a electron-donating effect?

A:

Q: Water temperatuesinakile say eatiuely Cat even thaigh a heat wowve mahes theQr tnapasali lec hot thi...

A:

Q: Using the following data obtained at 25°C. • Ksp for Cr(OH)3 is 6.3 x10-31 • Kf for [Cr(OH)4]- is 8....

A: Given Data : Ksp for Cr(OH)3 is 6.3 x10-31 Kf for [Cr(OH)4]- is 8.0 x1029

Q: What effect does a catalyst have on the activation energy of the reaction? In the graphs below draw ...

A:

Q: Which are true for paper chromatography? Select the correct response(s): the less polar component wi...

A:

Q: You are adding food coloring to water. What would be the effect on the dissolution rate if the water...

A:

Q: What is the cell potential when the concentration of Ni has fallen to 0.600 mol L Express your answe...

A: Given: Initial concentration of Ni+2 = 1.70  M Initial concentration of Zn+2 =0.130  M Zn+2(aq)+2e-→...

Q: First structure determination of a synthetic organic molecule, what is the utility of a standard, pr...

A: In structure determimation Of organic molecules, NMR Spectroscopy Plays crucial role. Some of atoms ...

Q: Calculate the kinetic energy of  53  moles of N2 at 262 °C. (R = 8.314 JK–1 mol–1)

A:

Q: What is the pressure of CO2 (in atm) at 275.80 K, molar volume = 4 liter/mole, if B = – 0.053 liter/...

A: Detail mathematical calculation for pressure using virial equation of state is shown below

Q: Question 5 The origin of the eEnergy released by a nuclear reaction O The number of atoms decrease u...

A:

Q: The atmospheric oxidation of nitrogen monoxide, 2NO(g) + O2(g) 5 2NO2(g) was studied at 184°C with i...

A: Given-> 2NO(g) + O2(g) -->2NO2(g) Initial pressure of NO =1.000 atm Initial pressure of O2 = 1...

Q: + 6 HCl(aq) → 2 AICI3(a9) + 3 H;O, + 3 H,O, 10. In the reaction, Al,O3(s) how many grams of AICI, wi...

A: This problem can be tackled by finding the no of moles of HCl in given mass and going through unitry...

Q: Why do five grams of powdered iron react faster than a one-gram piece of solid iron?

A: Chemical kinetics can be defined as the branch of chemistry that deals with rates of chemical reacti...

Q: 8.278 x 10¯4 mol of an unidentified gaseous substance effuses through a tiny hole in 86.9 s Under id...

A:

Q: Given the following information, SO3 (g) + H2O(1) → H2SO4 (1) AH = -133 kJ %3D Pb(s) + PbO2 (s) + 2H...

A:

Q: An aqueous solution of 43.80 mL of 0.240 mol L-1 NaCN is added to 43.80 mL of 0.240 mol L-1 Zn(NO3)2...

A:

Q: 2. A solution is made by adding 25 mL of benzene to 80 mL of toluene. What is the percent by volume ...

A: given, volume of benzene (solute) = 25 mL volume of toluene (solvent) = 80 mL volume of solution = v...

Q: Predict the products for each of the following reactions and provide an explanation for the stereoch...

A: Diels alder reaction is [4+2] cycloaddition reaction . In which one reactant is diene and other is d...

Q: Question 7 How do you call the small peak usually found at the the left of the moelcular ion peak in...

A:

Q: Estimate the average energy for valence electrons in a nitrogen N atom. Type your numeric answer and...

A:

Q: I Review | Constants | P Part B The integrated rate law allows chemists to predict the reactant conc...

A:

Q: What part fo chromatography is being descibe by the following? a phase that is fixed in place either...

A:

Q: CH3CH2CI→C2H4 + HCI he rate constant at 745 K is 6.02x10 4 /s. The rate constant will be 7.22x103 /s...

A: Rate constant is directly proportional to temperature 

Q: Predict the product and balance  redox reaction The presence of sulfuric acid , an excess KMnO4 wil...

A: Answer: In acidic medium, KMnO4 act as a strong oxidizing reagent where it itself gets reduced and o...

Q: An analysis was done on 3 unknown samples (NaOH, Na2CO3 and NäHCU3) USIng each analysis and a single...

A: Neutralization reactions of all three possible compounds are: NaOH + HCl ------> NaCl + H2O Na2CO...

Q: Hb + C,H12O6 + NaOH + C3HŞN C44H42FEN,O4

A: Hb is C2952H4464N3248O812S8Fe4.

Q: using calomel electrode containing 1M kcl as a reference electode. and using two stock solution K3[F...

A: z in the nernst equation is the symbol for the change in number of electrons  or the number of elect...

Q: s) At 20 °C the vapor pressure of benzene is 10 kPa and that of methylbenzene is 2.8 · kPa. If this ...

A:

Q: 1: A flask that can withstand an internal pressure of 2500 torr, but no more, is filled with a gas a...

A: As per our guidelines we can only solve first question. Please resubmit the other questions as next ...

Q: Lead (II) sulfide (PbS, an insoluble salt, Ksp = 3.4 x 10-28). Lead ions will form the following com...

A:

Q: The oxidation number of the reducing agent increases during oxidation.  True or False?

A:

Q: Sort the descriptions. Standard Gibbs free energy of reaction Gibbs free energy of reaction No Answe...

A: The answer is as follows:  

Q: 2. Balance the following redox equations by the ion-electron half-reaction method: (a) (acid soluti...

A: We will step by step balance redox reactions.

Q: What is the hydroxide ion concentration in a solution that has a pH value of 9.776?

A: Given, pH = 9.776  Concentration of the hydroxide ion = [OH-] = ? The formula used here are, pH + pO...

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".