A 0.2021 g sample of an organic compound was burned in a stream of oxygen and the CO2 produced was collected in a solution of barium hydroxide. Calculate the percentage of carbon in the sample if 0.5995 g of BaCO3 was formed.

Q: The cyclic form of this sugar would be A) alpha-anomer as the -CH2OH and the hemiacetal -OH are…

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Q: If a gaseous mixture is made by combining 4.66 g Ar and 4.71 g Kr in an evacuated 2.50 L container…

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Q: If a fifth solution (solution E) is made by mixing 10mL of soln C and 10mL of soln D, how will…

A: It is given that there are 4 solution which are sodium propanoate, propanoic acid, HCl and NaOH with…

Q: A 3.80 mol sample of HI is placed in a 1.00 L vessel at 460 °C, which is allowed to undergo…

A: When a reaction starts, the concentration of reactant starts decreasing where as the concentration…

Q: Question 3 Use the following atomic weights and quantities to calculate the theoretical yield of…

A: We will first write the balanced reaction. From that we will find the limiting reagent and hence the…

Q: Given that water boils at 100 °C and has a heat of vaporization of 40.65 kJ/mol, what is the boiling…

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Q: Calculating ion molarity using solute mass A chemist prepares a solution of magnesium bromide…

A: For MgBr2 solution , the molarity of Mg2+ is same with MgBr2 and  Br- will be double than the…

Q: PROBLEM F.10 What is the IUPAC name for each of the following molecules? 0 (a) (b) ملا (c)

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Q: QUESTION 4 What solvent could be used to synthesize a persistent solution of phenyl magnesium…

A: Co-ordinating solvents such as ether or THF are required to solvate the the magnesium (II) centre…

Q: (a) Draw a reaction coordinate diagram (RCD) for the reaction R-[I]→P that is overall endergonic.…

A: Since you have asked multiple questions, we will answer the first one for you. To get the remaining…

Q: Ho!!!!!! NH₂ H₂N "!!!|| OH ОН

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Q: During an endothermic chemical reaction, a system becomes [Select] [Select] in potential energy. and…

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

Q: Lepadiformine is a cytotoxic marine alkaloid that has cardiovascular biological activity. Draw the…

A: Given : structure of reactant Tip : SN2 reaction

Q: If magnesium carbonate is combined with 100.0 mL of 0.50 mol/L hydrochloric acid solution, determine…

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Q: What would be the normality of 38 g of NaOH in 600 mL of solution? And How would you make 300 ml of…

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Q: Correctly name the compounds or write the formulas. Identify each compound as molecular,…

A: There are three columns in given table. First column has formula of compounds, second column has…

Q: Hello! I would just like to clarify why did we add hydrogen on the tripple bond on the left part of…

A: The carbon atom has a covalency of 4.  Hence each C atom makes 4 bonds in all its compounds.

Q: Yus OH TM-127 J. Nat. Prod. 84, 2411 (2021). Proposed total synthesis ?

A: This is total synthesis based question.

Q: A chemist designs a galvanic cell that uses these two half-reactions: MnO4(aq) + 2 H₂O(1)+3e Zn²+…

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Q: I need to make a solution of 50% ethanol in water (by mass). The partial molar volume of water is…

A: The given solution is 50% ethanol in water by mass. Assume the mass of solution be 100 g. Thus, mass…

Q: Six clean, dry, 18 x 150mm test tubes 1-6 was labeled.  5.00 L of 2.00 x 10-3 M Fe(NO3)3 solution…

A: Please note the typo in your question.  Actually, we have to add, 5.00 mL, NOT 5.00 L of 2.00 x 10-3…

Q: CaSO4(aq) + Na2CO3(aq) → CaCO3(s) + Na2SO4(aq)   Question 6 options:   this is the net ionic…

A: An aqueous solution of sodium nitrate reacts with an aqueous solution of calcium sulfate to form a…

Q: Describe the preparation of 4 liters of the 50 mM sodium phosphate buffer, pH 7.6 using 1 M NaOH.…

A: Desired pH = 7.6  Since the desired pH is 7.6, we have to choose H2PO4-(pKa2 = 7.2) as the weak acid…

Q: the pH of this solution Report your answer with 2 places past the decimal point. Type your answer...

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Q: Draw the product of the following S2 reactions, note which molecules are chiral:

A: Given : structure of reactants  Tip : inversion product will form.

Q: Calculate the concentration of cobalt(III) ions in a solution formed by mixing 200.0 mL of 0.500 M…

A: Answer:- This question is answered by using the simple concept of calculation equilibrium…

Q: Propose a synthesis of 3-phenylpropanoic acid fi

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Q: Select all the forces (from those listed below) that must be overcome to convert H₂S from a liquid…

A: The attraction forces between the different molecules are known as intermolecular forces. In general…

Q: Is this reaction going via Sn1, Sn2, E1 or E2 mechanism - explain?

A: For given reaction OH— is substituted by Cl—  This indicates reaction is nucleophilic reaction (Sn)…

Q: A 25.0 mL aliquot of 0.0480 M EDTA was added to a 50.0 mL solution containing an unknown…

A: EDTA forms complex with ions in 1 : 1 mole ratio. So first we would write the reactions.  Then we…

Q: How much energy is required to heat 45.0 g H2O from a liquid at 70.0°C to a gas at 115°C? Also,…

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Q: 6. When an unknown compound with the molecular formula C6H13Cl is treated with NaOCH2CH3 the…

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Q: 10. Calculate solution is 1.205 g/cm³. a. 2.55 M b. 4.30 M c. 1.79 M d. 0.53 M e. none of the above…

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Q: What substitution and elimination products (if any) might be obtained when each of the following…

A: Substitution reaction:-  In substitution reactions, The incoming nucleophile substitutes the leaving…

Q: The IR spectrum of compound X (C8H15OCl) shows an absorption at 1800cm-1. Which functional groups…

A: Molecular formula C8H15OCl

Q: A 9.00L tank at 14.6°C is filled with 14.9g of dinitrogen difluoride gas and 2.69g of boron…

A: Given the volume of the container, V = 9.00 L Temperature, T = 14.6 + 273.15 = 287.75 K Mass of…

Q: XVI. Predict the product(s) of each reaction below. Br CH3CH₂C Br C=CH 2 KOH ethanol HCI CH3 CH3COOH…

A: 1. Elimination reaction 2. Addition reaction 3. Hydroboration oxidation reaction

Q: 2 Calculate the quantity of O₂ would be required to generate 13.0 mol of NO₂ in the reaction below…

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Q: 18.)  What is the pH of a solution with [OH-] = 1.8x10-5? a. 4.75 b. 9.25 c. 7.00 d. 4.76 e. 8.25

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Q: Write the mechanism for the alkylation reaction of acetylide anion with bromoethane to give…

A: Due to the presence of negative charge in the acetylide anion (H-C≡C-), it is a strong nucleophile…

Q: A 24.0 liter gas storage container containing on CO2 at a pressure of 5.53 atmospheres and a…

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Q: solution contains 1.41x10-2 M chromium(III) nitrate and 1.06x10-2 M zinc acetate. Solid sodium…

A: Concentration of chromium(III) nitrate, Cr(NO3)3 = 1.41x10-2 M  Each Cr(NO3)3 produces 1 Cr3+(aq)…

Q: based on knowledge of the Paal-Knorr synthesis of pyrroles, draw a curly arrow mechanism for the…

A: Paal Knorr synthesis of pyrrole:- It is a synthesis process of furan which occurs via condensation…

Q: Draw a Lewis Structure for IF5. Give the electron domain geometry and molecular geometry of the…

A: Since, For determination of lewis structure, first determine the shape of the molecule using VSEPR…

Q: For the titration of 25.0 mL of 0.0100M Sn2+ by 0.0500 M Ti3+ Calculate the potential of solution…

A: 25.0 mL of 0.0100 M Sn2+ was titrated with 0.0500 M Ti3+ solution . We have to find out the…

Q: How come only iodine will serve as the reference for the reaction rates in determining the reaction…

A: To explain: 1. Only Iodine will serve as the reference for the reaction rates in determining the…

Q: ▼ Classify reaction as exothermic or endothermic. Gas burning in a Bunsen burner: CH4(g)+20₂…

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

Q: What is the resulting pH when 0.013 moles of HCl is mixed with 0.0202 moles of NaOH in 0.28 L?

A: When an acid reacts with an base, it gives salt and water. This reaction is known as neutralization…

Q: Tungsten has a melting point of 3422 °C, making it the highest melting point of all the metals (and…

A: Enthalpy and Entropy:- Enthalpy:- The enthalpy of a system is the overall energy which is defined as…

Q: Calculate ΔG° for the following reactions at 25°C using the standard free energies of formation of…

A: Given reaction: H2O(l) → H2O(g) We have to calculate the ΔG° for the reaction at 25°C using the…

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".