A 93.6 g sample of ground water is found to have a lead concentration of 15.65 ppm. Calculate the mass of lead in the sampl in milligrams. mass: mg

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: Using the thermodynamic information provided, what is the entropy change, AS for the balanced…

A: Calculate change in the entropy of the given reaction ---

Q: Calculate the volume of N2 gas in Lif 1.79 g of N₂ at 28.0°C have a pressure of 507.0 Torr. (R =…

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Q: Give a specific example of halogenation of alkenes including the starting material (substrate) and…

A: Example of halogenation of Alkene is given below

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Q: Which one of the following two compounds has the stronger IMF - and therefore the higher boiling…

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Q: What is the pH of a 0.20 M NaClO solution? Ką for HCIO = 4.0 x 10-8. O 3.45 O 8.76 O 2.78 O 11.39 O…

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Q: The diagram below illustrates graphically how the free energy changes during the chemical reaction:…

A: For the given chemical reaction,  reactants → products

Q: Moles = Molarity (Moles/Liter) * Liters Question: How many grams of NaOH would be required to make…

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Q: Which one of the following two compounds has the stronger IMF - and therefore the higher boiling…

A: In this question, we have to choose in each part which one of the following two compounds has the…

Q: Calculate [H3PO4], [H₂PO4], [HPO4²-], [PO4³-], [H3O+], [OH-], and [CI-] in a mixture that is…

A: H3PO4 is a triprotic weak acid with pKa values of 2.12, 7.21, and 12.32.  Concentration of HCl =…

Q: When the following equation is balanced properly under acidic conditions, what are the coefficients…

A: Water is present as reactant. With the coefficient of two. Three electrons are transport in this…

Q: estion 12 What is the coefficient for OH after balancing the following reaction in basic medium?…

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Q: Select the classification for the following reaction. Hg2+ (aq) + Cu(s) → Cu²+ (aq) + Hg(l) O…

A: The addition of electrons or decreases in the oxidation state is known as a reduction reaction and…

Q: The pressure in a 5.75 L container of 48.0 g of bromine gas at 100.0°C is O 3.50 atm. O 3.20 atm. O…

A: Given : Volume = 5.75 L  Mass of bromine = 48g Temperature = 1000C

Q: N of NH O Br 1. 2. H3O+ 1. NaOH 2. ~ 3. H30*, heat 1. NH3, H* 2. KCN, H* 3. H30* Br

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Q: For redox titrations, the oxidation state of the analyte may need adjusting. The analyte can be…

A: Ans. Oxidizing agent that is paired with incorrect elimination chemistry:  (A) The excess stannous…

Q: sing the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy of…

A: Given : C(s) + 2Cl2 (g)--> CCl4(g)

Q: Which of the following structures is not a resonance structure of the cation shown? 8 O A. C OB. B…

A: Benzyl carbocation is stabilised by resonance.

Q: Consider the reaction of chlorine with manganese dioxide: 3 Cl2(s) + 2 MnO2(s) + 8 OH(aq) →6 Cr(aq)…

A: Given-> Equilibrium constant (Keq) = 6.63 × 1047

Q: Calculate the value of Eºcell for the following reaction: 2 Al(s) + 3 Co2+ (aq) 2 Al3+ (aq) + 3…

A: The E°cell can be calculated by using formula E°cell = E° cathode (reduction) - E° anode(reduction)

Q: For a particular reaction at 236.0 °C, AG=-848.32 kJ, and A.S= 648.46 J/K. Calculate AG for this…

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Q: y acidic protons

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Q: In the electrolysis of molten aluminum oxide, what are the products (select ALL correct answers)?…

A: Given that, the electrolysis of molten aluminum oxide. We have to tell what are the products.

Q: The chemical environment of protons can be deduced from their chemical shifts. What are the relative…

A: We have to tell in the given compound which one has the lowest delta or chemical shift value ( most…

Q: 5. (a) Work out the symmetry pint group of the following species. (1) S₂032 (ii) H3BO3 (iii) allene…

A: This Question is based upon Group Theory.

Q: Consider the following reaction with vanadium and iron: 2 Fe2+ (aq) + √2+ (aq) 2 Fe³+ (aq) + V(s)…

A: Here we have to predict the Ecell at equilibrium of the following given  cell reaction.

Q: Self-test 16.2 A CH₂Cl molecule has a C-Cl bond length of 178 pm, a C-H bond length of 111 pm, and…

A: Solutions- Given- C-Cl bond length = 178 pm C-H bond length = 111 pm.

Q: A student collected 17.14 ml of H₂ over water at 25.00 °C. The water level inside the collection…

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Q: Jaya needs to measure the unknown concentration of Sn2+. A Galvanic cell is set up in a room with a…

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Q: 2. Draw the Lewis structure of the dipeptide that results when histidine reacts with valine. 3. Draw…

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Q: synthesize o form of acetaminophen from benzene

A: synthesis of acetaminophen from benzene is given below

Q: A galvanic cell is prepared using zinc and gold. Its cell notation is: Zn(s) | Zn2+ (aq) || Au³+…

A: In an electrochemical cell, the electrical energy is produced from the spontaneous cell reaction at…

Q: How many moles of acetylene gas will occupy a volume of 3.25 L at STF O 0.290 mole O 0.145 mole O…

A: Given, Volume, V = 3.25 L At STP, pressure = 1 atm and temperature, T = 273 K Gas constant, R =…

Q: Which of the following is/are true for an electrolytic cell for a system not at equilibrium (select…

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Q: What is the molarity of chlorlide ions in a saturated solution of PbCl2 (Ksp = 1.2 x 10-5) that was…

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Q: 9) 10) Al(s) + F2(g) + ― HCl(aq) NaBr(aq) → AICI3(aq) + NaF (aq) + H₂(g) Br₂(1)

A: Balanced equation means number of each atom in both side are present in equal number.

Q: 2. (a) What is partition function? Obtain a general relation of function with the following the…

A: The answers are given as follows:

Q: In the electrolysis of molten copper(II) chloride, what are the products (select ALL correct…

A: In electrolysis, the electrical energy will change into chemical energy. Electrical energy is used…

Q: For the reaction (NH4)2S (s) = N2 (g) + H2S (g) + 3 H2 (g), the expression for Kc is

A: Given ;  (NH4)2S(s) <-----> N2(g) + H2S(g) + 3H2(g)  To write :-  Expression for Kc

Q: You have 2.00g of sodium and 1.00g of calcium chlroide. Which of these is the limting reactant? Show…

A: Given :- Mass of Na = 2.00 g  Mass of CaCl2 = 1.00 g  To determine :-  Limiting reactant

Q: A student receives an unknown mixture that is thought to contain the Group I cations. The student…

A: Qualitative analysis refers to analysis of mixture for predicting cations present. Group 1 cations…

Q: The reaction NO (g) + 03 (g) = NO2 (g) + O2 (g) reaches equilibrium at 310 K. Some of the NO2 gas is…

A: In the given equilibrium, we removed the NO2 gas from the reaction chamber.

Q: Zn(s) + Cu²+ (aq) → Zn²+ (aq) + Cu(s) the ion concentrations are [Cu²+] = 0.0389 M and [Zn²+] = 1.7…

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Q: Solid lithium hydroxide is used in space vehicles to remove exhaled carbon dioxide from the living…

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Q: QUESTION 7 What type of bonding is present in NaCl? O A. polar covalent. O B. nonpolar covalent. O…

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Q: Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy…

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Q: Consider the weak acids below and their corresponding Ką values. Rank the acids from weakest to…

A: Higher the value of Ka, higher will be the acidic strength.

Q: A galvanic cell is prepared using zinc and gold. Its cell notation is: Zn(s) | Zn²+ (aq) || Au³+…

A: In the galvanic cell left hand side represent anode while right hand side represent cathode.

Q: Limiting Reagent Investigation Introduction: In this lab a precipitate will be formed by mixing…

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