Empirical formula:

Q: How many grams of Mg are there in a sample of Mg that contains 6.21x1023 atoms? grams

A: The amount of Mg present can be calculated as

Q: E2B.3(a) The constant-pressure heat capacity of a sample of a perfect gas was found to vary with tem...

A:

Q: Which of the following is the most correct name for this compound? a. 2,5-dioxooctanal b. 4,7-dioxoo...

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Q: Question 13 of 50 Consider the equilibrium system described by the chemical reaction below. When 1.5...

A: Moles of CO2 = 1.50 moles Volume = 20 L

Q: A. Standardizing a Dilute Solution of Sodium Hydroxide, NaOH (aq) КНС,Н,О, (аq) + NaOH (aq) H,O (1) ...

A: The reaction is standarization of NaOH With respect of KHP.  

Q: The rate of a certain reaction is given by the following rate law: rate -k[N,[0,] -k[N_][0] Use this...

A: Given:  Initial rate of the reaction = 7.0 × 105 M/s

Q: The rate of a certain reaction is given by the following rate law: rate =k[NO] °[0,] Use this inform...

A:

Q: Salicylic acid reacts with acetic anhydride to form aspirin, acetylsalicylic acid. If the percent yi...

A: Salicylic acid reacts with acetic anhydride to form aspirin and water. The equation for the balanced...

Q: Reaction quotient is the concentration of the products raised to the stoichiometric coefficients div...

A: Which statement is TRUE....

Q: What are three observations that would indicate a chemical reaction has taken place?

A: When a chemical reaction takes place, some changes are observed. These changes help us to check that...

Q: pOH

A:

Q: how would you prepare 9 liters of a 50% dye solution beginning with a 60% stock dye solution?

A: Given :-  Initial concentration or concentration of stock solution = 60%  Final concentration or con...

Q: e reaction

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Q: 23) Translate the structure below to a Fischer projection and assign absolute configurations to the ...

A: We will give the priopity to the group according to CIP rule.  Priority is given on the basis of ato...

Q: 2H,0, (aq)→ 2H,0(1)+0,(8) -> Rate Law: The equation for the decomposition of hydrogen peroxide is gi...

A: The ideal gas equation is given by PV=nRT, where, P, V, n are the pressure, volume, and temperature ...

Q: A student is about to dissolve 1.1 g of compound Z in solvent Y. Is 100 mL of solvent Y already enou...

A: Solubility of Z = 3.44 g/L So, 1 L Y : 3.44 g Z  

Q: If a mixture of solid nickel(II) oxide and 0.13000 M carbon monoxide is allowed to come to equilibri...

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Q: ions

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Q: Provide the full CURVED ARROW MECHANISM for the following reaction=

A:   Types of intermediates in organic reactions :  1. Carbocation 2. Carbanion 3. Free radical    A...

Q: Some measurements of the initial rate of a certain reaction are given in the table below. [N:] [H] i...

A:

Q: A sólution of g/L acrylamide in than is polymerized at /L isobutyryi peroxide (initiator) whose half...

A: Given data: The half-life is t1/2 =9 hrs. The ratio is kp2 /kt=22 L⋅mol-1s-1 The molecular concentr...

Q: Express the equilibrium constant for the following reaction. RbBrO3 (s) = RbBrO(s) + O2(9) O K = [O2...

A: Equilibrium constant expression:

Q: The acid HOCI (hypochlorous acid) is produced by bubbling chlorine gas through a suspension of solid...

A: The correct expression of equilibrium constant is given below

Q: An unknown substance was subjected to boiling point determination. Temperature is recorded at 75℃ wh...

A: In the method of finding boiling point of substance using capillary tube, when the bubbles escape ri...

Q: 4. Are these two compounds: a) the same b) enantiomers OR c) diastereomers? HÖ +-OH Explain how you ...

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Q: Elemental phosphorus occurs as tetratomic molecules, P4. What mass of chlorine gas is needed to reac...

A: Phosphorus reacts with chlorine to form phosphorus pentachloride. The equation for the balanced chem...

Q: For each addition route of the reaction, draw the structure(s) of the major product(s), including st...

A: The 1,2-addition product is given below 

Q: What is the organic product? CO,H ? Heat II the COH ČOH II IV çOH Select one: А. IV В. I C.II D. II

A: The product is as follows:  

Q: CrO42- can be used as an indicator when Br- is titrated with Ag+. What concentration of CrO42- shoul...

A:

Q: A[A] 스[B] rate = - At At Which of the following reactions is consistent with the rate equation above...

A: rate = -∆[A] / ∆t = ∆[B] / dt  The reaction which belongs to this rate = ? 

Q: Which reagents are required to accomplish the transformation below? OH HO. А. 1.2 еq. MeLi 2. H2O B....

A: In the given reaction an ester gives nucleophilic addition reactions.

Q: Describe (in detail) the preparation of 800 mL of 50 parts per thousand of Cl- from 0.02 M Lead(II) ...

A: Here we have to prepare 800ml of 50 parts per thousand of  Cl- from 0.02 M PbCl2 solution.

Q: ion 18 of 20 Consider the Diels-Alder reaction shown. Draw the structures of the diene and dienophil...

A: The correct answer is given below

Q: Which of the following mixtures would result in a buffered solution when 1.0 L of each of the two so...

A: A buffer is defined as the mixture of a weak acid with its conjugate base or a conjugate acid with i...

Q: For the Diels-Alder reaction, identify the diene, the dienophile, and the Diels-Alder adduct. H3CO. ...

A: A diene is an organic compound, especially a hydrocarbon, containing two conjugated double bonds whi...

Q: At a certain temperature the rate of this reaction is first order in CICH,CH,Cl with a rate constant...

A:

Q: [OH–

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Q: At a certain temperature this reaction follows first-order kinetics with a rate constant of 0.0033 s...

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Q: A chemist adds 1.13 L of a 44.1 g/dL calcium bromide (CaBr,) solution to a flask. Calculate the mass...

A: Given, Density  = 44.1 g/dL Note: 1 L = 10 dL Volume = 1.13 L = 1.13 × 10 dL = 11.3 dL Mass (in kg) ...

Q: Indicate whether each structure is aromatic, nonaromatic, or antiaromatic. Assume planarity. C BH Co...

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Q: Choose three different C-C disconnections for this ketoester and write out the structures of the sta...

A: Retrosynthesis is the process of "deconstructing" a target molecule into starting material. 

Q: which aqueous solution will have the lowest freezing point

A: Ionic aqueous electrolyte solutions have the lowest freezing point. The freezing point is a colligat...

Q: Consider the following reaction: CH4(g) +2 H2S(g) CS2(g) + 4 H2(g) A reaction mixture initially cont...

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Q: A chemistry graduate student is given 450. ml of a 1.10M dimethylamine (CH:) NH) solution. Dimethyla...

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Q: Q.No. 5 Absolute stereochemistry of the given compound is: 8a 4a OH (A) 4aR. 8aS () 4aR. 8aR (c) 4aS...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: E 00 Ili %24 3. When 0.126 mol of carbon is burned in a closed vessel with 9.39 g of oxygen, how man...

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Q: Write an acceptable IUPAC name for the compound below. Include 'cis' and trans' as part of the name ...

A: We have to write an acceptable IUPAC name for the following given two c

Q: 1. Draw the compound in expanded, condensed and skeletal form. ALL compound must be hand drawn. 2. C...

A: Atenolol is a type of drug which is used to treat blood pressure and arrhythmia. 

Q: to the fallowing Hexane combuusts according balances eauakions 2Co Hisi () + 19 o2(9) ) how mang gra...

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Q: Consider the equilibrium system described by the chemical reaction below, which has a value of Kp eq...

A:

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".