a) FC of nitrogen in NO3: b) FC of carbon in CO2 =

Q: The mass of solute per 100 ml of solution is abbreviated as (m/v). Mass is not technically the same…

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Q: Draw the major organic product of the following reaction conditions. CH3 1. Os04, H20 2. NalO4 ČH3

A: Detail mechanistic pathway is given below to find out the major product

Q: Balance the reactions below using the change in oxidation number method. РЬО, + НBr РЬО + NH, KBr +…

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Q: TRIAL 1 TRIAL 2 TRIAL 3 Mass of Vitamin C (mg) 11 mg 12mg 11mg Initial buret reading of lodine…

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Q: OH

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Q: mole fraction of argon?

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Q: Balance the equation and calculate the E∘cell of the given reaction Rb(s) + Hg2+(aq) ------> Rb+…

A: Given- Rb(s)+Hg+2(aq) ->Rb+(aq)+Hg(s) Answer may differ slightly because values of standard…

Q: Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222…

A: Given -> Half life = 3.82 days

Q: (1R,2R)-2-methylcyclohexanol same as (1R,2R)-2-methylcyclohexan-1-ol

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Q: What is the molar solubility of Ag2CO3 in an aqueous solution that is buffered to a pH of 2.37?…

A: Given: pH = 2.37  Ksp for Ag2CO3 = 8.1 x 10-12 K1 H2CO3 = 4.45x10-7 K2 for HCO3- = 4.69x10-11 Kw =…

Q: (b) Draw the structure of compound A and suggest a reaction mechanism for the transformation of A…

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Q: Which event must always occur for a chemical reaction to take place? Addition of a catalyst to the…

A: Chemical reaction depends  1) collision between reactant 2) activation energy 3) proper orientation

Q: The reaction between hydrogen and fluorine gas proceeds according to the reaction equation H2(g) +…

A: The energy difference between the products and reactants is known as the energy change of a…

Q: A solution is prepared at 25 °C that is initially 0.26M in methylamine (CH,NH,), a weak base with…

A: this is a basic buffer , so we will use the formula of basic buffer.

Q: Arrange the oxoacids of chlorine according to strength. Strongest acid Weakest acid Answer Bank…

A: The acidity order of Oxo acids are given below

Q: Which molecule is polar? O BF3 O CO2 ON2 O H,Se

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Q: What is the molar solubility of Ag,CO3 in an aqueous solution that is buffered to a pH of 4.94?…

A: Solution =

Q: Draw in the missing structures A and B, and then choose what could function as reagent C to complete…

A: In this question, we have to draw the missing structure A,B and the reagent C.

Q: How much mL of 0.155 M NaOH solution are required yo neutralize 35.0 mL of 0.250 HCL solution?

A: Given, NaOH solution Molarity of NaOH solution = 0.155 M = 0.155 mol/L Volume of NaOH solution = ?…

Q: 1) a) For the following 4 carbohydrates, identify chiral carbons by putting a* near each one. b) For…

A: Chiral carbon is the optically active center of a molecule, it has four distinct group of atoms…

Q: 20. Rank the following elements in order of increasing a) size, b) ionic radius, c) first ionization…

A: In the periodic Table From left to Right : Electron affinity & Ionization energy increases &…

Q: At STP, 5.00 mol of gas occupies approximately what volume in liters?

A: 1 mole = 6.022×1023 (Avogadro's number)    STP (Standard Temperature and Pressure) : Standard…

Q: The acid-dissociation constant of hydrocyanic acid (HCN) at 25.0°C is 4.9 × 10-10. What is the pH of…

A: Given,  Concentration of the sodium cyanide (NaCN) solution = 0.080 M  Acid dissociation constant…

Q: /hich of the following would be classified as cephalins? Select all that apply.) CH2 -C-(CH2)14CH3…

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Q: Calculate the solubility of Fe (OH), in water at 25 °C. You'll find K. data in the ALEKS Data tab.…

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Q: Write the balanced nuclear equation for each of the processes described below. 1. beta emission of…

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Q: 4 5, Calculate the solubility of PbCO, in water at 25 °C. You'll find K, data in the ALEKS Data tab.…

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Q: H. 1. CH3CH2CCLİ 2. Neutralizing work- dn

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Q: 5. Draw a structural example of a primary, secondary and tertiary alcohol.

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Q: Be sure to answer all parts. Calculate the nuclear binding energy (in joules) and the binding energy…

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Q: altic What peak should be present in your starting material, salicylic acid, but missing in your…

A: First we would draw structures of compounds and check which functional group is present in salicylic…

Q: H. 1. CrOз, H2SО4 2. Neutralizing work- up Select to Draw --

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Q: At 2000 K, the equilibrium constant, Kc for the decomposition of hydrochloric acid is 3.2 x 10-3. If…

A: Given initial concentration of HCl is 0.250 M

Q: Consider the following chemical reaction at equilibrium 2NO2(g) N2O4 (g) If the containers volume is…

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Q: Predict the direction of the shift of the equilibrium position (LEFT, RIGHT, NO SH esponse to each…

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Q: 1. Gold-198 is used in the diagnosis of Ilver problems. If the half-life of Au-198 is 2.69 days: a…

A: Given-> Half life = 2.69 days Initial amount = 9.21 mg Time = 72.9 days

Q: The carbon-14 decay rate of a sample obtained from a young tree is 0.263 disintegration per second…

A: Solution - According to the question - Given - Ao = initial activity = 0.263dps A = activity at time…

Q: What is the mass (in grams) of 25.00 L of propane vapor (C3H8) at STP? R= 0.08314 L·bar/mol · K.

A: Detail mathematical calculation is shown below

Q: Write a balanced molecular equation for the reaction between KMNO4 and KI in basic solution. The…

A: Redox reaction are those in which both oxidation and reduction reaction occurs simultaneously.

Q: Choose the phrase that best describes the relative acid strength of these acids. NH3 H,O. is more…

A: Acid is the compound which give hydronium ion . so, greater is the tendency to give hydronium ion…

Q: Given a 1.00 L solution containting 1.00 x 10^-2 M each of Ca2+ and Ag+. A 1.00 M Na2CO3 solution is…

A: Here 1L solution containing 1.00×10^-2M each of Ca+2 and Ag+ ion. We have to determine molar…

Q: A catalyst affects the rate of the forward reaction by changing which of the following? Activation…

A: Catalyst :-  A catalyst which increases the rate of chemical reaction without itself undergoing any…

Q: Which of the following may have caused the formation of bands of the components? (base on the…

A: It is asked in the question to answer for which reason the formation of bands of the components…

Q: Question 12 Match correct electron configuration. Na A. [Ar] 3d8 v Ca2+ В. [Ar] Na+ C. [Ar] 452 3d3…

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Q: Calculate the pH of a 0.10 M solution of hypochiorous acid, HOCl. Ka of HOCI is 3.5 x 10^-8 at 25…

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Q: O CHEMICAL REACTIONS Using molarity to find solute mass and solution volume A chemist adds 390.0 mL…

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Q: A 3D representation of a cyclohexane (C,H,2) molecule, a cyclic compound used in the manufacture of…

A: The hybridization and geometry of each carbon in cyclohexane is given below

Q: H. 1. CHaMgBr 2. Neutralizing work- dn Select to Draw

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Q: ASSERTION: The solubility of all gases in water decreases with the rise in temperature. REASON: The…

A: Answer_First: The dissolution of gas molecules in water take place by the thermal evolution. This,…

Q: A Zn wire and Ag/AgCl reference electrode saturated with KCI (E = 0.197 V) are placed into a…

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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.