A mass of 41.6 g of an element is known to contain 6.59 x 1023 atoms. What is the atomic mass of the element?

Q: Estimate the following parameters from the plot below. >>3 K(M) v(max) Substrate concent 3M 3mM/s 1M…

A: Michaelis Menten equation shows the effect of the concentration of the substrate on the rate of an…

Q: 10. Consider the reaction coordinate diagram for the reaction of HNO3 with KOH. 60 50 40+ 30 20- lo…

A: Given, At temperature , T=298 KInitial rate of reaction , r = 0.00125Ms[HNO3]=0.010 M[KOH]=0.050 MAt…

Q: The dominant type of IMF for CHCl3 is Ion-Ion forces Hydrogen Bonding LDF Dipole-dipole forces The…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: The equilibrium constant of the reaction in aqueous solution is K = 5.00.…

A: The reaction given is, => CH3Hg(glutathione)+ (aq) + Cysteine (aq) → CH3HG(cysteine)+ (aq) +…

Q: Calculate the moles of H+ delivered to each sample based on your experimental data and record these…

A: A substance's solubility product (Ksp) is the ratio of concentrations at equilibrium. Molar…

Q: statement that correctly describes the hydronium-hydroxide balance?

A: Given : We have to explain statement that correctly describes the hydronium-hydroxide balance.

Q: Hydrogen peroxide has a density of 1.45 g/cm^3 and decomposes spontaneously but slowly. The steps…

A: Density :-  The ratio of mass of a substance to volume occupied by that substance at a given…

Q: A 1997 g sample of ground water is found to contain 0.0207 g of arsenic. Calculate the concentration…

A: Parts per million (ppm) :-  The number of parts by weight of solute present in million (106) parts…

Q: Question 35 The mechanism for NO2 (g) + CO (g) → NO (g) + CO2 (g) is thought to be: 2 NO2 NO3 + NO -…

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Q: what would you expect to observe upon analysis by H and C13 NMR

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Q: Sam wanted to perform a chemical reaction using 8.22 moles hydrogen gas and 4.11 moles of oxygen gas…

A: To Calculate mass from moles , we would use formula :  Mass = Moles × Molar mass

Q: Write the chemical formula of the following complex ions. formula name tricarbonatomanganate(II)…

A: Steps to write formula of complex from name  Identify central metal and its oxidation state written…

Q: In the following unbalanced reaction, which is a conjugate acid-base pair? H3PO3(aq) +H2O(l) --->…

A: 1.According  to bronsted acid base  concept  acid    is a substance  which donate proton.  2.…

Q: Decide whether solutions of the ammonium fluoride are acidic, neutral, or basic. a. K for NH3 is 1.8…

A: Kb  and Ka are dissociation constants of base and acid respectively . Greater is the dissociation…

Q: QUESTION 28 Which one of the following is a weak acid? O A. nitric acid, HNO3 OB. hydrochloric acid,…

A: Answer the given question,

Q: Example 9. A solution contains 25 per cent water, 25 per cent ethanol and 50 per cent acetic acid by…

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Q: Which of the following pure substances experience the weakest intermolecular forces of attraction?

A: Types of intermolecular forces (IMF's):  1. Dipole-dipole : these forces present between molecule…

Q: You perform an electrochemical reaction in which 0.300  mol of Cu++ are reduced to solid Cu How…

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Q: Calculate the pH of a 0.74 M solution of NaOH.

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Q: 3. Fog is a colloidal solution of (a) solid in gas (c) liquid in gas (b) gas in gas (d) gas in…

A: 3. c : Fog is an example of aerosol in which dispersed phase is liquid and dispersion medium is gas.…

Q: Which of the following gases will have the greatest density at the same specified temperature and…

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Q: Describe a non-electrolyte solution. True or false: the solubility of solids in water increases with…

A: 1) A non-electrolyte solution is a solution that doesn't contain any free ions. It formed by adding…

Q: In a reaction, A + B → product, rate is doubled when the concentration of B is doubled, and rate…

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Q: Derivation Calculate the entropy of HBr at 298 K and 1.00 bar, given that the bond length is 1.41 Å…

A: Here are required to find the translation entropy of HBr at 298 K and 1 bar pressure

Q: For whole blood flowing in a capillary of radius 1.9x10-4 cm, estimate the maximum velocity for…

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Q: Consider these metal ion/metal standard reduction potentials Cd2+(aq)|Cd(s): -0.40 V;…

A: ->The species which has high reduction potential that tends to reduce itself and oxidize other…

Q: What is the concentration (in molarity) of CaCl2 in 215.3 mL of aqueous solution containing 4.39…

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Q: Ni (s) + 2 Ag+ (aq) → Ni2+ (aq) + 2 Ag (s) What is the equilibrium constant Keq for this reaction at…

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Q: A 12-ml. sample of borax solution was titrated with 0.482-M HCL The endpoint was reached after…

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Q: 5. Identify each salt solution as acidic, basic, or neutral. Support your answer. a. An aqueous…

A: Two questions based on acid-base concept that is to be accomplished.

Q: What is the pH of a solution containing 0.30 M lactic acid (K₂ = 1.38 x 10-4) and 0.50 M of lactate…

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Q: QUESTION 10 When sodium chloride dissolves in water, how do the water molecules orient around the…

A: 10) Sodium Chloride is an ionic and so it contains cation and anion . Water is also polar because of…

Q: A chemist prepares a solution of iron(III) bromide (FeBr3) by measuring out 140. g of iron (III)…

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Q: 8 What are the units of the rate constant for each reaction order? zero-order rate law first-order…

A: General formula for finding the unit of rate constant is :-  mol1-nLn-1.s-1

Q: Use the data below to determine the Michaelis-Menton constant [in mM] of a certain enzyme-catalyzed…

A: Given that,  v1 = 0.152 mM/s at [S1] = 0.334 mM,  And v2 = 0.176 mM/s at [S2] = 0.450 mM. We have to…

Q: H30+ 1. DIBALH 2. H₂O OCH3 Mg Br 2. H₂0

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Q: You need to prepare 1L of 100 mM phosphate buffer at pH 7.1. What masses of monosodium phosphate…

A: Given: Total concentration of solute in buffer = 100 mM = 0.100 M Volume of buffer = 1 L And pH of…

Q: Example 9. In an electrolysis experiment, a current was passed for 5 hours through two cells…

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Q: What is the conjugate base of HSO4" ? O H₂SO4²- O HSO3²- O HSO4²- O H₂SO4 O SO4²-

A: What is conjugate base of HSO4- ?

Q: Example 10. How long has a current of 3 ampere to be ap- plied through a solution of silver nitrate…

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Q: Transition metal chemistry: 4. Provide the products/reagents for each reaction. LOCH₂ + b. d. f.…

A: a. Suzuki Miyaura coupling. b. Heck coupling. C. Heck coupling. d. Grubbs metathesis. e. RCM. f.…

Q: 2. When 1.3 g of C4H9NO is dissolved in 150 mL water, the resulting solution is 0.50% ionized at…

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Q: A sample of neon gas collected at a pressure of 0.880 atm and a temperature of 14.0 °C is found to…

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Q: Calculate AGran in kJ, at 298K for the following reaction using the conditions given below. R =…

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Q: A chemist prepares a solution of zinc oxalate (ZnC₂04) by measuring out 0.0029 µmol of zinc oxalate…

A: Given :-  No.of moles of ZnC2O4 = 0.0029umol  Volume of solution = 150. mL  To calculate :-…

Q: Which of the products listed below is formed as an organic product of the following reaction? be…

A: In this question we have to tell the organic product of the reaction.

Q: The weak acid, HA, has a Ka of 3.00 x 10-8. What is the Kb of its conjugate base, A"? 1.39x10-12 O…

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Q: given chemical reaction, the value of AH is negative and the value of AS is negative. The value of…

A: Given, the value of ∆H is negative and  ∆S is negative.

Q: Determine the theoretical yield of HCl if 60.0 g of BCl3 and 37.5 g of H₂O are reacted according to…

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Q: At 1000K, the value of Kp for the following reaction equals 0.338. 2 SO3 (g) 2 SO2 (g) + O2 (g) Kp =…

A: we need to calculate the value of Q and predict direction in which reaction will proceeding

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.