MOLAR MASS CALCULATION: Element Symbol No. of Atoms Atomic Mass Mass Contribution X %3D X X %3D Molar Mass : PERCENT COMPOSITION CALCULATION: %Al = x 100 % %S x 100 % %O x 100 = EMPIRICAL FORMULA:

Q: nemical compound

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Q: 19. The rate constant for the radioactive decay of 14C is 1.21 × 10¬4 nitrogen atoms and electrons (...

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Q: In your own words what is the main reason why lactose is harder to break than sucrose?

A: Lactose is composed of a molecule of galactose joined to a molecule of glucose by a β-1,4-glycosidic...

Q: Identify the suitable reagents for the following: Br

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Q: Calculate the pH of a 0.877 M solution of NaF. The K, for the weak acid HF is 6.8 x 10*. pH =

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Q: draw 5-hexyl-2-methyl-4-(2-methylprop-2-enyl)octa-1,7-diene

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Q: The pKa values for the α-carboxylic acid and the α-amino acid groups is cysteine are 1.092 and 10.78...

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Q: 13.3 Matching Questions Identify the product, if any, that would form in each of the following react...

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Q: Cyclohexanone can be effectively oxidized to adipic acid by treatment with which two of the followin...

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Q: What series of reagents are necessary to carry out the following conversion? CH3 `Br CH,ca / AICa Br...

A: Mechanism is given below in next step 

Q: which of the following compounds would be the most basic? A. p-methoxyaniline B. p-nitroaniline C. p...

A: Basicity means donate the lone pair of electron  Basicity depends on 1) + I and + R  

Q: 1. Give a mechanism of following conversion CH,OH

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Q: 5. Predict the possible products of the reaction and draw the reaction mechanism. If product A forme...

A: The above reaction is oxymercuration demercuration reaction...

Q: a buffer?

A: Buffer solution is the solution which resist the change in pH when a little amount of acid/base adde...

Q: Calculate the volume (mL) of 0.129 HCI required to neutralize 24.03 mL of 0.15 M NAOH?

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Q: Get the number of moles of the given substances. a. 0.26 g iron, Fe b. 1.50 x 1023 sodium atoms, Na ...

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Q: For the following reactions: a. Write the oxidation numbers above each element in the b. Draw arro...

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Q: What are the solvents used in the fabrication of organic electronic devices today? In your words, wh...

A: The solution of the question is given below:

Q: 3. For which type of titration will the pH be basic at the equivalence point? a. Strong acid vs. str...

A: If salt is formed -> Strong base + strong acid => Neutral Strong base + weak acid => Basic ...

Q: Consider the following three step reaction. (a) Add curved arrows in Step [1] to show the movement o...

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Q: Dehydrating Cyclohexanol Pre lab Q's A. Which the following is true? I both constitutional isbiners ...

A: Dehydration means removal of water. In dehydration reaction of alcohol, the -OH group is first proto...

Q: A student dissolves 125.0 g of lead(II) nitrate in enough water to make 250.0 mL of solution. What i...

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Q: Give a clear handwritten answer of this buffer solution ..we need to find out buffer pH...given 0.3 ...

A: Given,  The molarity of ammonia = 0.3 35 M  and The molarity of ammonium bromide = 0.457 M and if we...

Q: ΔΕ in

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Q: A mass of 200g of gaseous ammonia is contained in a 20,000 cm³ vessel immersec constant-temperature ...

A: Solution -

Q: Consider the following sets of replicate measurements B. D 55.35 55.32 9.5 0.612 5.7 4.2 20.63 0.972...

A: Mean is the average value of a data set Median is middle value of dataset Range is the difference be...

Q: 2. are the percent compositions of the flue (dry basis) if the fuel is burned stoichiometrically? As...

A: The solution of the question is given below: The information given is:  C = 83 % H2 = 7% O = 5% S = ...

Q: monoprotic weak acid, HA, is ionized according to the reaction HA(aq) + H,O(1) =A (aq) + H,O*(aq) pK...

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Q: of poten- -0.185 V at 25 °C and pH 7.0. What will be the p tial of this system if the oxidation has ...

A: Nernst equation is an equation that can be used to determine the reduction potential of an electroch...

Q: You want to neutralize 15.9 mol of sulfuric acid with 8.72 M sodium hydroxide. How many L of that so...

A: Given, moles of sulfuric acid (H2SO4) = 15.9 mol Molarity of sodium hydroxide (NaOH) solution = 8.72...

Q: cide if the equilibrium favours the starting materials or the products.

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Q: 29. The rate constant for the first-order decomposition at 45 °C of dinitrogen pentoxide, N2O5, diss...

A: Given :-  2N2O5 → 4NO2 + O2  Reaction is first order  Rate constant (K) = 6.2 × 10-4 min-1  [N2O5] =...

Q: The reaction A + B >C ill always be spontaneous, if AH° is and AS is a) +, + b) -,- c) -,+ d) +, - e...

A: Given the reaction is , A+B--------->C We have to find of delta H° and deltaS° when reaction will...

Q: 5.

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Q: If the molecule XY, which has an enthalpy of ionization of 1,500 kJ/mol as per the reaction below, c...

A: Given the ionization enthalpy of the molecule, XY = 1500 kJ/mol First, we have to convert the ioniza...

Q: Which two of the following are spontaneous processes? (Circle only two): a) rusting of an iron nail ...

A: A reaction which occurs without the input of energy is called a spontaneous reaction. 

Q: "For an electron the probability that it is in the volume dt is 4? dt = (a'n)'e 2/* dr for the 1s or...

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

Q: 5) You determined that the pH of a 0.1M solution of lactic acid, C,H,OHCOOH, is 2.9. What is the K, ...

A: We need to find Ka of a weak acid using concentration and pH value. 

Q: Is heat Examples other than released States of Appearance of particles during phase change or Phase ...

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Q: Stoichiometry, Limit

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Q: 19. The rate constant for the radioactive decay of 14C is 1.21 × 10¬4 year¯. The products of the dec...

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Q: at is the boiling point of the substance? °C ch letter represents heating of the solid? ch letter re...

A: From the given heating curve,  6. 40 °c 7. 70 °c 8. A  9. E

Q: Two reactions and their equilibrium constants are given. A + 2 BZ 2C K1 = 2.79 2 C D K2 = 0.280 Calc...

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Q: Multiple Choice 1. Which statement best describes intermolecular forces in general? a. Covalent bond...

A: Intermolecular forces  1) dipole-dipole interaction- present in polar  2) London disperse force - no...

Q: 1. Draw the structure and enumerate the uses of the following aldehydes:

A: To Draw the structure and enumerate the uses of the following aldehydes.,

Q: 19. The rate constant for the radioactive decay of 14C is 1.21 × 10¬4 year¯. The products of the dec...

A: Given :  Rate = k[614C]  Carbon - 14 content = 6.5 x 10-9 M  Rate constant = 1.21 x 10-4 year-1     

Q: What assumptions are made about the gas in the ideal gas equation model?  Consider Volume (particl...

A: Since, we know that ideal gas equation PV = nRT  Where, P = pressure of gas  V= volume  T = temperat...

Q: How long would it take

A: Farrady law of electrolysis  m=Z I t

Q: any moles

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

Q: Which of the following statements is incorrect regarding IR spectroscopy?   Question 24 options:  ...

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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".