Question 1 28.6g of a soluble metal carbonate (M2CO3) was dissolved in water to make a litre of solution. 25cm3 of this solution required 12.5cm3 of 0.2M sulphuric acid for complete neutralization. Calculate the relative formula mass of M2CO3 and determine the relative atomic mass of element M.

Q: The following are spectrometric methods of analysis, except   A. MS   B. NMR   C. Polarimetric…

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Q: Balance the redox reaction {Cr2O72- + Fe2+ = Cr3+ + Fe3+} (acidic solution). Use the smallest…

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Q: What is the molar concentration of Fe3+(aq) if the cell potential was -0.3792 V and the molar…

A: According to Nernest equation- Ecell = Estdcell - 0.0591/n * log [Product/Reactant] n = No of…

Q: During the course of the titration of a 20.0 ml of solution containing 0.1 M of NaOH and 0.08 M of…

A: Initial moles of strong base, NaOH in the solution = C*V = 0.1 molL*20.0 mL = 2.0 mmol Initial moles…

Q: Name these organic compounds: structure name CH,- CH=CH CH, CH E CH CH;-C CH

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Q: Q2. Find the cell potential of a galvanic cell based on the reaction below at 25 c°? Cd Pb+2 + 2e- -…

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Q: Consider the reaction below to answer the following question: FÖH H Ph 'Ph Br This reaction proceeds…

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Q: Write the systematic name of each organic molecule:

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Q: What is the pH of a 0.020M ammonia (NH3) solution if its Kb value is 1.8x10-5? a.12.3 b.10.8 c.3.2…

A: Given : [NH3] = 0.020 M Kb = 1.8×10-5 pH = ?

Q: What is the best choice of reagent to perform the following transformation? Br a. H2SO4 b. H20 с.…

A: We have given one reaction in which removal of br take place and alkene if formed. This reaction is…

Q: Balancing redox reactions in basic solution 7) Ag25 + CN' + O2 ---> Ag(CN)Z + S8 + OH 8) N2H4+…

A: Balancing of a redox reaction is done by using following steps.  First determine oxidation and…

Q: 3. Calculate the equilibrium constant for the following reaction at 298 K. 3C2H2 (g) + CeHe (g) AG°…

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Q: Q3. A.Equilibrium constant for the synthesis of ammonia at 500c, 6x 102. The reaction will shift to…

A: Equilibrium constant only depends upon temperature...

Q: The following are spectrometric methods of analysis, except O MS NMR Polarimetric O Fractional…

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Q: Check the box next to each molecule on the right that has the shape of the model molecule on the…

A: VSEPR theory: The structure of a molecule can be determined by using the VSEPR theory. According to…

Q: A 5ml ampoule of a 1 in 200,000 solution of bupivacaine hydrochloride is administered to a patient.…

A: 1 in 200,000 solution means 1 g of solute in 200,000 mL of solution.

Q: bond energy in OF2(g).

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Q: The decay constant for 32P is 4.85 x 10 2d-. What is the half-life, in days, for the negatron decay…

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Q: Water has a Kf of -1.86 °C/m. Calculate the new freezing point of an aqueous solution made by mixing…

A: Given :-  Kf of water = 1.86 °C/m  Mass of water = 28.85 g  Mass of MgCl2 = 1.84 g  To calculate :-…

Q: What kind of intermolecular forces act between a krypton atom and an ethane (C,H) molecule? Note: If…

A: The answer is given below

Q: Balance the following redox reactions occurring in basic aqueous solution. MnO4 (aq) + S09)→ MnOz{s)…

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Q: 1. Compute for the pH and generate a titration curve for the titration of 50.0 mL 0.0500 M NaOH with…

A: Here the analyte is NaOH and the titrant is HCl, both of which are strong and monoprotic.  Hence we…

Q: 2. With the given information: i) State the gas law that can be used and ii) Solve for the unknown.…

A: Dear student since you have asked multiple questions but according to guidelines we will solve 1st…

Q: Explain how you could synthesize butane. Be sure to list all reactants and reagents required.

A: Wurtz reaction: The reaction of two molecules of alkyl halide dissolved in dry ether solution with…

Q: giHow many grams of sodium hydroxide (M.wt-58.5) can add to liter of solution mixture of 0.2M…

A: Ammonia, NH3 is a weak base and ammonium chloride or ammonium ion, NH4+(aq) is a conjugate acid of…

Q: Acetone (nail polish remover) has a boiling point of 56.2 °C. The change, (CH3)2CO(1I) →…

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Q: What is the correct order of stability of the following radicals (more stable > less stable)?

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Q: Which of the following anions is the best leaving group in an Sn1 reaction? а. F- b. Но- c. NH2- d.…

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Q: Chemistry using the equipartition theory what is the internal energy U and molar heat capacity at…

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Q: For the reaction, H2(g, 1 atm) + Cl2(g, 1 atm) 25°C is -45,400 cal. Find AF for the process 2 HCI(g,…

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Q: For For the reaction: NH:CO:NH2) + 2NHxg) + CO2 ).Drive the relationship between Kp and Kc ?

A: Kp = Kc (RT)∆ng  This relation is used in to calculate the KP from given Kc.

Q: e equation for the rate of formation of

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Q: Consider the titration of 100.0 mL of 0.10OM NAOH with 1.00 M HBr. Find the pH at the following…

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Q: pH of Taal lake.

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Q: Given the following reactions: Anode: NO3- + 2H+ + e- --> NO2 + H2O Cathode: 2H+ + 2e- --> H2…

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Q: . A. Balance the equation ( Oxidation Reduction ): - Fe*2 + MnO4 - Mn+2 + Fe+3 {salt} Prove that POH…

A: Here two questions given, In first balance the reaction and in other  related to pOH

Q: A weak acid HA (pKa = 5.00) was titrated with 1.00M KOH. The acid solution %3D had a volume of 100.0…

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Q: What is the approximate C-C-C bond angle in propyne? a. 90° b. 109° с. 120° d. 180° a O b O d

A: we need to determine bond angle in propyne

Q: long will it take for the concentration of A to decrease from 1.25 M to 0.221 for the second order…

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Q: Generate a titration curve for 25.0 mL of 0.7233 M H3PO4, with 1.256 M NaOH as the titrant, given…

A: The titration curve for the titration of 25.0 mL of 0.7233 M H3PO4 versus 1.256 M NaOH solution is…

Q: Calculate the broadcast wavelength of the radio station 99.10 FM.

A: Ephoton = hv   h is the plank's constant  v is the frequency of light  v = speed of light/wavelength…

Q: Addition of iron(III) ions to phenol groups causes color changes. True False

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Q: Activity 1. Lewis Structures Instructions: Draw a Lewis structure for: (a) H2S, (b) OF2, (c)…

A: Lewis structure :- Formulas or structures used for representation of bonds and lone pairs in any…

Q: 2) For two of the following pairs of compounds, identify the most basic atom in each compound, and…

A: Here we have to find the most basic atom and the most basic compound from the given pair of…

Q: The concentration unit one part per billion (one ppb) is equivalent to one of solute per of solution…

A: The mass of solute present in per billion mass of the solution is known as part per million (ppm)…

Q: Consider the pair of reactions below to answer the following question(s). KI acetone Br + KBr…

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Q: The standard reaction free energy AG" 193. kJ for this reaction: 2 NH3(g)N,H(9) + H,(g) Use this…

A: The given chemical equation: 2NH3 (g) → N2H4 (g) + H2 (g)         ∆G° = 193 kJ   Note:- When a…

Q: What is the concentration of magnesium bromide, in ppm, if 152.51 g MgBr, is dissolved in 7.6 L…

A: Given: The mass of MgBr2 dissolved = 152.51 g The volume of the solution = 7.6 L We have to…

Q: What is the major organic product obtained from the following reaction? 2 mol Br2 CH3-C=c-CH, a.…

A: the given reaction is the halogenation of alkynes , the reaction proceeds through the cyclic…

Q: Solubility Graph 250 240 230 220 210 200 potassium iodide 190 potassium nitrate 180 170 m 160 150 8…

A: Solubility graph shows the effect of temperature on solubility of a salt in 100g water.

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.