Use the rules (in order) to assign oxidation numbers to each of the elements in the compounds below. tetrahydroxozincate ion H Zn 0 Zn(OH)4²- hydrofluoric acid HF cadmium hydroxide Cd(OH)2 H F H Cd 0

Q: Question 4 Part b of previous problem: A 0.150 M solution of a weak acid has a pH of 2.65. What is…

A: Answer:- This question involves the calculation of percent ionization of a weak acid which is given…

Q: Calculate the mass of copper sulfate hydrate placed in crucible for a trial 2. Calculate the mass…

A: Given Data Table: To determine: 1.The mass of copper sulfate hydrate placed in crucible for a trial…

Q: 11.16 Draw the condensed structural formula for each of the follow- ing alkanes: 3-ethylpentane a.…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first three parts…

Q: A copper atom has a mass of 1.06 x 10 -22 g and a penny has a mass of 2.5 g. Use this information to…

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Q: Suppose that the pH of distilled water is 6.2, what will be its esulting color using phenol red.…

A: Indicator shows a specific colour in a specific PH .

Q: 9) Which of the following precipitates could be dissolved by the addition of dilute nitric acid? (1)…

A: Here, Given  three compounds of silver:-  Silver sulfite silver bromide silver acetate Silver…

Q: 7) Aspirin is a compound with the molecular formula C9H8O4. What is its percent composition? 8) A…

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Q: 2. Identify and describe mistake(s) in the following structures. [9 points] a) b) c) H3C xx `N

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Q: 11.28 Draw the condensed structural formula, or line-angle formula, if cyclic, for each of the…

A: We have to write the condensed structural formula and line angle formula for four molecules.

Q: What is the percent by mass of carbon in the amino acid valine (C5H11O2N)?

A: The percent mass of an element in a compound can be calculated by using the following formula:

Q: This is the chemical formula for iron(II) hydroxide: Fe(OH)2. Calculate the mass percent of oxygen…

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Q: Wine goes bad soon after opening because the ethanol (CH₂CH₂OH) in it reacts with oxygen gas…

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Q: Suppose you are performing a titration. At the beginning of the titration, you read the titrant…

A: we have to calculate volume of titrant required

Q: Which of the following equations represents a reaction that provides the heat of formation of…

A: We are to write an equation that represents the reaction for providing the heat of formation of…

Q: For a reaction, if AGO = 0, one can surely conclude that: O 00 AS⁰ = 0 ΔΗ = 0 AU=0 K=1 K=O

A: We know some relation ;  ∆Go = ∆Ho - T∆So  ∆H = ∆U + P∆V  ∆Go = -RT ln K  From these relations we…

Q: In a electrolytic cell, Electrical energy is converted to chemical energy in a non - spontaneous…

A: we have to select the correct statement for an electrolytic cell

Q: Given a 1st order rxn of A(g) --- > B(g) + C(g) + 3D(g) with a k = 6.0x10-4 s-1 at 298 kelvin,…

A: Rate of reaction can be expressed as follows: Rate of reaction=Rate of disappearance of…

Q: In each of the molecules drawn below one chemical bond is colored red. Decide whether this bond is…

A: Chemical bonds are of two types mainly - polar and non-polar. A polar covalent bond arises due to…

Q: The sign of the entropy change when a rose bud opens to full bloom is: Positive Negative Cannot be…

A: Answer:- This question involves the entropy concept which measures the randomness of the system.…

Q: Predict the the 13C-NMR shift of labeled carbon number (3) sol a 1276 b. 1376 €127.9 d. 122.1 1292

A: The aromatic carbon exhibit peak around 110 to 150 in 13C NMR. If a carbon is attached to a electron…

Q: If 41.00 mL of distilled water at 98.39 °C is added to 41.21 mL of distilled water, in a coffee cup…

A: According to principle of calorimetry heat released by hot water is equal to the heat gained by the…

Q: Given 2NOBr (g) --> 2NO (g) + Br2 (l)  The reaction is second order and rate constant is 1.45 1/Ms…

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Q: Suppose that the pH of distilled water is 6.2, what will be its resulting color using phenol red.

A: •PHENOL RED INDICATOR:- Phenol red is used as indicator to predict the pH of solution. •Phenol red…

Q: Draw all possible constitutional isomers for compound [1]

A: The reaction given is

Q: Fill in the name and empirical formula of each ionic compound that could be formed from the ions in…

A: Here we have to write the empirical formula of the following given ionic compounds obtained from the…

Q: (a) mixing 50.0 mL of 0.100 M HCN with 50.0 mL of 0.100 M NH3? NH3(aq) + HCN(aq) ⇒ NH4+ (aq) + CN…

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Q: Calculate the standard free energy change (kJ/mol) for the reaction shown at a temperature of 298.15…

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Q: Balance the equation for the removal of Zinc ZnSO4 + Cu + HCl ->

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Q: Which is more likely to be thermodynamically favored, the forward reaction or the reverse reaction?…

A: The chemical equations under consideration are: C6H6(l) + 7.5O2(g) → 6CO2(g) + 3H2O(l) ; ∆H1 = ??…

Q: Threonine is a naturally occurring amino acid used in the production of proteins in the body. Draw…

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Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE):…

A: Given :- Number of moles of Carbon in the sample of methyl tert-butyl ether = 31.9 mol  To be…

Q: What is the point group of this molecule? O O D4d O D4 O D4h Td Oh Ih Cannot be determined

A: The molecule has C4, 2σv, 2σd, 4 perpendicular C2, σh as well as other symmetry elements. The point…

Q: Determine the number of atoms of O in 86.4 moles of Al₂(SO₄)₃.

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Q: A piece of metal with a mass of 114 g was placed into a graduated cylinder that contained 25.00 mL…

A: One question at a time!! ANSWER: 1. The volume of metal = Final volume - Initial volume = 42.5mL -…

Q: 12) What is the molar solubility of Magnesium Fluoride in a solution of 0.20M Magnesium Nitrate?…

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Q: Given the following equation: 8 Fe + S8 ---> 8 FeS  What mass of iron is needed to react with 16.0…

A: We have to calculate Mass of Fe needed to react with 16.0 g sulfur  Mass of FeS produced from 16.0…

Q: Which of the following metals can be used to cathodically protect an iron sculpture? Nickel Lead…

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Q: a. Convert the theoretical yield of Cu to units of mass (g). Show all calculations. b. Finally,…

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Q: Calcium cyanamide reacts with water to form calcium carbonate and ammonia.…

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Q: The Tris buffer system is commonly used in biochemistry as its pKa of 8.1 allows it to buffer close…

A: In the Tris buffer, we weak acid is TrisH+(aq) and the conjugate base is Tris(aq).  For TrisH+(aq),…

Q: The composition in mole fraction units of the strands of a double-helical DNA is [A]= 0.30 and [G] =…

A: Given  data DNA is [A]= 0.30 [G] = 0.24.

Q: Clear my choice many stereocenter se molecule? 1158 100000 How many Rand S stereocenters are there…

A: Chiral center :  An atom in an organic molecule contains four different groups attached to it is…

Q: The radioactive isotope Cs decays by beta emission. If the mass of a sample of cesium-137 decays…

A: Here we are required to find the half life of caesium-137 .

Q: b) % yield of ethanol from molasses (we used 50 mL of the molasses solvent for both distillation)…

A: Frementation is the process of conversion of sucrose from molasses to cellular energy that is…

Q: ΔS° for the reaction shown is equal to -332.0 (J/mol-K). Use the information given in the table to…

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Q: What is the molecular, ionic and net ionic equation of lithium dichromate + ammonium thiosulfate?

A: Balanced molecular equation: Li2Cr2O7 (aq) + (NH4)2S2O3 (aq) --->(NH4)2Cr2O7 (aq) +Li2S2O3 (aq)

Q: (aq). 16. In a saturated solution of Mg(OH)2 at 21°C, the concentration of OH- is 2.50 X 10² M. The…

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Q: Given 0.462 grams of acetic anhydride, how many mmols of acetic anhydride are present? Provide your…

A: Mole is defined as number of mass of substance divide by it's molar mass

Q: What volume of 0.118 M ammonium sulfate contains 7.25 g ammonium sulfate?

A: Mass of Ammonium sulfate = 7.25 g Molar mass = 132 g/mol Mole = mass/molar mass    = 7.25/132 =…

Q: Glucose (C6H12O6) solutions are frequently used as an intravenous (IV) solution to supply hydration…

A: Molarity is a concentration term for a solution. The molarity of the given solution is defined as…