How many moles of Mg are there in a sample of Mg that contains 1.36x1024 atoms? moles

Q: Two vessels of different shape and sizes are connected by means of a pipe with a valve. Vessel A has...

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Q: Estimate the λmax of the following organic compounds. Show your solutions and/or analysis.

A: Woodward–Fieser rules: The Woodward–Fieser rules are used for the calculation of the wavelength of t...

Q: For the reaction N2(9) + O2(9) = 2NO(g) classify each of the following actions by whether it causes ...

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Q: rate

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Q: 22 In the reaction Pb(s) + 2Ag+(aq) Pb2+(aq) + 2Ag(s) (a) Which species is oxidized and which is red...

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Q: Which of the following reactions is correctly balanced? A) CO + O2 → CO2 B) N2 + H → 2NH3 C) 2H2O...

A: Given :-  A) CO + O2 → CO2 B) N2 + H → 2NH3 C) 2H2O + C → CO + 2H2 D) Zn + 2HCl → H2 + ZnCl2  To ide...

Q: What is the final glycosidic link to be broken during glycogen debranching? a-1,3-glycosidic linkage...

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Q: A certain element consists of two stable isotopes. The first has a mass of 138 amu and a percent nat...

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Q: Balance the following equation: C8H1803() + O2(g) --> H20(g) + CO2(g) O C3H1803() + 802(g) --> 9H20(...

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Q: Why cannot oils and water-soluble products be mixed and heated together? Why should heating be at a...

A: Oils and fats are non-polar compound (hydrocarbon) and water is non-polar compound and water molecul...

Q: The equilibrium constant, Ka, for the following reaction is 1.29x10-2 at 600 K. coCI2(g) co(g) + Cl2...

A: The balanced equilibrium reaction given is  COCl2 (g) ⇌ CO (g) + Cl2 (g)  The equilibrium constant K...

Q: Part A Determine the empirical and molecular formulas of each of the following substances. Caffeine,...

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Q: Rubbing alcohol is a commonly used disinfectant and has a cooling effect when applied to the skin. T...

A: Given, Common concentration of rubbing alcohol = 70 % (v/v) Concentration of isopropanol solution us...

Q: 2. Given a reaction in acidic medium: MnO, (aq) + Fe" (ao) → Fe3 (aq) + Mn2* (aq) a. What is oxidize...

A: Dear student since it is a multiple subparts questions according to the guidelines here I am solving...

Q: dentify each compound as Empirical or Molecular. Write your answer on the space  provided.

A: 6) Methyl acetate (C3H6O2) The given compound is molecular formula.       7) Ammonia (NH3) The given...

Q: In the combustion of heptane, CO2 is produced Assume that you want to produce 600kg of dry ice per h...

A: The combustion of heptane takes place by the reaction of heptane with oxygen which yield carbon diox...

Q: How many grams of KBr, 119.0 g/mol, are required to prepare 0.986 moles of Br2 according to the bala...

A: KBrO3   +   5 KBr   +   6 HNO3 →   6 KNO3  +  3 Br2  + 3 H2O                  595.0 g    Molar mass ...

Q: he reaction will proceed to the right to establish equilibrium.

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Q: Classify each of the following reactions as a combination, decomposition, single replacement, double...

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Q: Some measurements of the initial rate of a certain reaction are given in the table below. H2 2 initi...

A: The sum of the exponent term in the rate law for a chemical reaction is known as the order of the re...

Q: Calculate the average atomic mass of Amazium, a newly discovered element (Amazium, symbol Az) which ...

A: Given :- There are only 2 naturally occurring isotopes of Amazium. Mass of isotope Az-230 = 229.995 ...

Q: What is the molar ratio of the balanced chemical equation? N2H4 (l) + N2O4 (l) → 2

A:   Given reaction is hydrazine reacts with dinitrogen tetraoxide to give nitrogen gas and water  To t...

Q: A solution contains 50.0 g of sucrose, C12H22011, a nonelectrolyte, dissolved in 500.0 g of water. W...

A: The formula for the calculation of elevation of boiling point is ∆Tb = Kb * m  Where Kb = constant d...

Q: 7. Consider the crystallization of sulfanilamide from 95% ethyl alcohol. If impure sulfanilamide is ...

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Q: What is the molar ratio of the balanced chemical equation? 6 CO2 (g) + 6 H2O (l) → C6H12O6 (g) + 6 ...

A: Carbon dioxide reacts with water to form glucose and oxygen. The equation for the balanced chemical ...

Q: The equilibrium constant, Kp, for the following reaction is 1.57 at 600 K: CO(g) + Cl2(g) coCI,(g) C...

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Q: 3) A sample of propane occupiesin 31.1Lat STP PL a how mana moles of propane are Present? b) what is...

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Q: pH

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Q: Which of the following strategies is NOT used in the regulation of glycogen phosphorylase? O phospho...

A: Glycogen is stored at liver,muscle. Phosphorylation converts inactive form to active form. Regulatio...

Q: Determine the empirical formula of the following compound if a sample contains 0.104 mol K, 0.052 mo...

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Q: how much heat will be given off when 18.5g of C2H4 is burned in oxygen form CO2(g) and H2O(g) for th...

A: The combustion enthalpy of C2H2 of 18.5 g can be calculate with the help given stoichiometric equati...

Q: The solubility of Na2SO4 will probably increase with increasing temperature. A) True  B) False

A: False

Q: Q1.Fill in positive, negative and neutral The isoelectric point, pl, of two amino acids is shown bel...

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Q: This is a pushing question. One frequency for ultraviolet blacklights used in nightclubs is 8.11 x 1...

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Q: "Each pi-l c-ntains 12.5 - of act-ve -ngre-dient. Adm-i--ister thr-e tim-s -aily unt-l ymptoms dimi-...

A: According to Charle's law, volume of a gas is directly proportional to temperature of that gas if pr...

Q: a. Two compounds have the same composition: 92.25% C and 7.75% H. Obtain the empirical formula corre...

A: Empirical formula is the simplest formula of a compound where atoms of participating elements are pr...

Q: Calculate the lambda max of the given compound using Woodward-Fieser Rules. R AcO Select one: O 303 ...

A: Woodward–Fieser rules: The Woodward–Fieser rules are used for the calculation of the wavelength of t...

Q: BUFFERS CH3COOH and CH3COONa NH,OH and NH&Cl H3PO4 and NaH2PO4 H2CO3 and NaHCO3 NH3 and (NH4)2CO3

A: Buffers are the solutions which resist the pH change.  Acidic buffer is the mixture of weak Acid/bas...

Q: • Which of the following radicals is expected to be the least selective? 1. HO• 2. F. 3. Cl• 4. Br• ...

A: Answer 2 :-  Radical chain chlorination of 2,3-dimethyl pentane :  2,3-dimethylpentane 1 Alkane) rre...

Q: Determine the value of the equilibrium constant, Kgoal , for the reaction N2 (g) + O2(g) + H2 (g) N2...

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Q: Determine the magnitude and direction of the electric field at a point 0.5 m to the left of a point ...

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Q: 6. Çalculate the mass (in g) of 2.3 x 1021 molecules of CO2.

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to ...

Q: What is the final glycosidic link to be broken during glycogen debranching? a-1,3-glycosidic linkage...

A: In glycogen debranching also known as glycogenolysis , glucose is free from glycogen.  Phosphorylase...

Q: 2. A 4.5491 g sample of a sulfur containing compound is analyzed by precipitating the BaSO4. If 1.39...

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Q: When the following equation is balanced properly under basic conditions, what are the coefficients o...

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Q: Balance the following chemical equation (if necessary) for the combustion reaction of propane: C3H8(...

A: In multiple questions we solve only first question according to Bartleby guidelines. Balance the ele...

Q: Bucks McGee, after being poisoned, is currently being treated in the hospital with an antidote- the ...

A: Name of antidote = Prussian blue  The molecular weight of the antidote compound =  858.9 g/mol Volum...

Q: Complete the table below for calculating the molar mass of the ionic compound chromium(II) sulfide. ...

A: Given, Chromium (II) sulfide.

Q: Ampyra is a drug used to improve walking in patients with multiple sclerosis (MS). The Lewis structu...

A: Delocalisation of pie electrons in molecules is known as resonance , electrons flow from high electr...

Q: 3) Predict the products of the ff reagents upon ozonolysis (reductive-work up): A. В. - CH

A: Ozonolysis of alkene: One of the important reactions of alkene is ozonolysis. In the ozonolysis reac...

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.