H :0% al ll H-C-レ-C三N:

Q: 11.8. (a) Explain why the concentration of dissolved oxygen in fresh water is an important indicator...

A: Oxygen is a nonpolar molecule, and water is a polar molecule, so there will not be any interaction b...

Q: What volume of oxygen gas is required to react completely with 0.721 mol of propane (C3H8) according...

A: Solution                                We know that  Balanced equation for combustion of propane:- ...

Q: The bond energy of O2 is 498 kJ / mol. What is the maximum wavelength of the photon that has enough ...

A: The energy of one mole of photons is = 498 kJ/mol The wavelength of the photon is =?

Q: Consider the following reaction for the formation of aluminum sulfate. 2AI(OH) 3 +3H 2 SO 4 → Al 2 (...

A:

Q: Determine the directing effect of the substituent on the ring. O Ortho director Para director O Meta...

A:

Q: Lime, CaO, can be produced in two steps as shown in the equations below. If the percentage yield of ...

A:

Q: Calculate the change in pH when 4.00 mL of 0.100 M HC1(aq) is added to 100.0 mL of a buffer solution...

A:

Q: Which phase change is correctly labelled? Subliming - exothermic O Vapourizing - exothermic O Conden...

A: Exothermic process means energy is release while in endothermic we have to supple energy.

Q: The reaction 2A + 28 - M+Nhas the rate law: Rate k(A). At 25C, k 0.0289 L mol's, If the initial conc...

A: rate = k[A]2 k = 0.0289 Lmol-1s-1 [A]i = initial concentration of A = 0.350M [B]i = initial concentr...

Q: How can you distinguish between following APIS in Mass Spec? Draw possible Mass spectra of ALL APIS ...

A: The solution of the question is given below:  “Since you have posted a question with multiple sub-pa...

Q: (Show your calculations here.) Questions and Problems (Show complete setups.) Q.3 A pencil is 16.2 c...

A:

Q: How many calories are required to raise the temperature of a 150.g sample of gold from 25 Celsius to...

A: Given data is as follows: The mass of the gold sample = 150 g The initial temperature of gold Ti= 25...

Q: In an endothermic process AH is always... ONegative O Positive O Less than q O More than q OZero

A: Given  Reaction is Exothermic process.

Q: U. mmo n AA reaction between nitric acid and calcium E 6. Write and balance each equation. Determine...

A:

Q: rate

A:

Q: What is the maximum concentration of Ag⁺ that can be added to a 0.00300 M solution of Na₂CO₃ before ...

A: Solution                                 Given that    Concentration Na2CO3 = 0.00300M Ksp  Ag₂CO₃ i...

Q: rate law for the reaclion 204 . m O Rate A Rae RateA

A: Given : We have to predict the rate law for the given reaction.

Q: Question 7 What is the molarity of a solution made by dissolving 8.56 g of potassium acetate (KC2H3O...

A: Given data : Mass of KC2H3O2 = 8.56 g Volume of water = 750.0 mL = 0.750 L

Q: Which of the following is a good hypothesis when someone observes there is more traffic in the eveni...

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: Describe the difference between bond polarity and molecular polarity.

A:

Q: The number of grams of Na2CO3 with a concentration of 0.2 N and a volume of 250 ml is O 1.75 O None ...

A: Given, Normality of the solution = 0.2 N = 0.2 eq/L Volume of the solution = 250 mL = 0.250 L Mass (...

Q: Calculate AS° for the unbalanced chemical reaction given below: + Cuo (s) - -Cu (s) + _H20O 5. _H2 9...

A:

Q: A local FM radio station broadcasts at a frequency of 88.2 MHz. Calculate the energy of the frequenc...

A:

Q: Shown are two stereo representations of lactic acid. Compare the two structures shown. Determine whe...

A:

Q: Draw the following compounds and please provide a clear picture C-2 epimer of ribose

A:

Q: Below are the resonance structures for the sigma complex that is formed when the ortho position of c...

A:

Q: Which causes the system below, at equilibrium, to shift to the product side? 2C0(g) +10 > 2CO2(2) , ...

A: Le chatelier's principle: According to the Le Chatelier's principle when a change in concentration t...

Q: 10.4. Write the balanced equations for the following nuclear reactions: c) 23U + ¿n→4? d) 32U + -{ß ...

A:

Q: define atomic mass and atomic number?

A: Atomic mass is the quantity of matter contained in an atom of an element. It is expressed as a multi...

Q: Calculate the pH of a 0.170 M solution of potassium nitrite, KNO₂. pH =

A: Given that, [KNO2] = 0.170 M =C (LET)  pH = ? 

Q: The radioactive nuclide Co has a shelf-life of 17.5 hours. What mass Co remains from 0.0100g sample ...

A:

Q: Use the following thermochemical equations as needed to find the heat of formation of diamond: C(dia...

A: Given equations are : 1). C (diamond) +  O2 (g)  --------> CO2 (g) , ΔH1 = -395.4 KJ  2). 2CO2 (g...

Q: If 0.0916 g P4O, is mixed with 0.113 g H2O, what is the theoretical yield? P406+6H2Ó → 4H3 PO3 O 0.1...

A: Limiting reagent is the reactant that is completely consumed in the chemical reaction.  Theoretical ...

Q: When 0.0916 g P406 were mixed with 0.113 g H20, a student obtained 0.121 g H3PO3. What was the perce...

A:

Q: A chemistry graduate student is given 450. mL of a 1.20M ammonia (NH,) solution. Ammonia is a weak b...

A:

Q: Describe the similarities and differences between ionizing and nonionizing radiation. FORM OF RADIA...

A: An atom is composed of protons, neutrons, and electrons. It will require some energy to eject electr...

Q: Bis(2-pyridylmethyl)amine with a florescent

A: In this question we have to explain that how we have combine Bis(2-pyridylmethyl)amine with a flores...

Q: Use the van der Waals equation to calculate the volume, in L, occupied by a 1.00 mol sample of chlor...

A:

Q: Predict the structure of the products (A-E) of the following reactions. Br BuzSnH OMe AIBN Toluene, ...

A:

Q: Draw the following compounds and please provide a clear picture C-3 epimer of Fructose

A:

Q: 2. Acetylene (C:H:) is used in welding in areas hard to reach with electricity. It burns with oxygen...

A: The solution is as follows:  

Q: A student reacts 19.9 grams of NICI 2 (MW=129.5994g/mol) with 36.0 mL of 4.00M NAOH. How many grams ...

A:

Q: 1. Circle and name all of the functional groups in the following molecules. H. .N. ОН ОН NH H2N HO F...

A:

Q: C2H4: HOMO-1 ole C2H2: HOMO ng ond Sond C2H2: HOMO–1 o pais ng eis C2H2: HOM0-2 regativj momeut ch V...

A: Solution                           Given that  C2H4:  HOMO - 1 C2H2:  HOMO C2H2: HOMO - 1 C2H2: HOMO...

Q: Try Again Suppose a 500. mL flask is filled with 1.5 mol of O, and 0.60 mol of NO. The following rea...

A: To find equilibrium concentration of oxygen.,  

Q: What's in your Bucket (write the molecule and what type--WB, WA, SA, SB, buffer, or water) before an...

A: 1) Given: 25 mL of 0.1 M NH3. And 2.5 mL of 1.0 M NaOH is added.  

Q: 3-(2-bromo-3-methylbutyl)-4-chloro-2-ethyl-1-methylcyclopent-1-ene How do you draw this molecule?

A: In the molecule their is mainchain on which substitutional groupsare attach over it to form the mole...

Q: Consider the following data on some weak acids and weak bases: acid base Ka K, name formula formula ...

A: The solutions given are of KCl, CH3NH3Cl, NaCN and C2H5NH3Br.  

Q: Determine which one of the labeled atoms is a chiral center. If there is no chiral center, answer "n...

A: Chiral atom has all substitution are different .

Q: How do you draw the structure with the name (3S)-4-chloro-2,6-dimethylhepta-1,5-dien-3-ol

A: Given :-  IUPAC name = (3S)-4-chloro-2,6-dimethylhepta-1,5-dien-3-ol  To draw :-  Structure of given...

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.