120- 90 60 30 Time (minutes) 90 What is the melting point of the following substances? Temperature (C)

Q: Draw the structure of Fe(OX).2H20.

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

Q: Enantiomers 1. Construct a model with a tetrahedral carbon in the center and four different colored…

A: Here we have to explain the existence of plane of symmetry in the structure in which a terahedral…

Q: Calculate the sum of the two weight tests. Then select SUBMIT to check your answer and add the…

A: The calculation given is, => 127.0912 - 127.08942

Q: Choose the set of quantum numbers that contains n error for an electron in an atom. n ml ms A 5 4 -4…

A: For specific n : possible l values are from 0 to (n-1)  For specific l value possible ml values are…

Q: Which ions are formed when Ca(OH)2 dissolves in water to form ions?

A: Given ; formula = Ca(OH)2

Q: Using tabulated values of S°, calculate the standard entropy per mole of atoms for the following. X…

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Q: 11.8) The most intense absorption band in the visible spectrum of [Mn(H2O)6]?+ is at 24,900 cm1 and…

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Q: for each of the following reactions. Give all the steps of the mechanism and use curved arrows to…

A: We have to complete give all the steps of the mechanism and use curved arrows to clearly indicate…

Q: The pH of an aqueous solution of 0.559 M caffeine (a weak base with the formula C3H10N402) is

A: Given, Caffeine (C8H10N4O2) is a weak base. Concentration of Caffeine solution (C) = 0.559 M pH of…

Q: determination of formic acid by neutralization volumetry, the pH was calculated as a function of the…

A: Answer- Ka=1.70x10-4. for Formic acid.

Q: A 1.50 L buffer solution consists of 0.280 M propanoic acid and 0.139 M sodium propanoate. Calculate…

A: Given- Volume of a buffer solution =1.5 0L Concentration of propanoic acid =0.280M  Concentration of…

Q: nb: ilibri e equilibrium law for e

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Q: Determine the number of atoms of C in 15.0 grams of C₆H₁₂O₆.

A: Given, mass of C₆H₁₂O₆ = 15.0 g Number of atoms of C in 15.0 grams of C₆H₁₂O₆ = ? Note: molar mass…

Q: 0.95 M CH,COON. Calculate the pH of 1.00 L of the buffer before and after the 1.08 M CH,COOH…

A: Given, 0.95 M sodium acetate 1.08 M acetic acid.. Volume 1.00 liter...

Q: What is the oxidation number of titanium in TiO2?

A: Given :- chemical formula of compound = TiO2  To determine :- Oxidation number of Ti in TiO2

Q: 100.0 mL flask contains 0.193 g of a volatile oxide of nitrogen.  The pressure in the flask is 760.…

A: We have to predict the molar mass of gas and gas also.

Q: 2. How much (mass) carbon dioxide will be produced from the combustion of 40 grams of methane?. 3.…

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Q: What volume of the stock solution should be added to water to prepare 450 mL of 5 mM hydrogen…

A: Given:: M1=5mM V1=450 ml M2=350 mM V2=?

Q: What is the relationship between an atoms number of electrons and its relative stability

A: The electrons of the outermost energy level determine the energetic stability of the atom and its…

Q: A chemist wishing to do an experiment requiring 4' Cat (half-life = 4.5 days) needs 5.0 µg of the…

A: Given :  Half life (t1/2) = 4.5 days  Mass of 47Ca+2 required = 5.0 ug  Time for delivery = 96 hour…

Q: Hydrogen and nitrogen react according to the equation   3 H2(g) +  N2(g) --> 2 NH3   How many liters…

A: Given :-   3 H2(g) +  N2(g) --> 2 NH3(g) mass of N2 = 6.45 g  To calculate :-  Volume of H2…

Q: I Review I Constants I Periodic Table What mass of HCl can this buffer neutralize before the pH…

A: A buffet solution is defined as a solution which's ph remain unaffected upon addition of few amount…

Q: Ammonia will decompose into nitrogen and hydrogen at high temperature. An industrial chemist…

A: Kc is the ratio of  product of concentration of products raised to their stoichiometric coefficient…

Q: a. Sr-85 decays by electron capture. What are the atomic symbol and mass number of the product?…

A: Identify the product of the given conditions--

Q: What is the maximum amount of electrons that can be placed in the 7th shell? A 14 B 49 98 D 140…

A: Here, we have to find the maximum number of electrons that can be placed in the 7th shell.

Q: How many millimoles of NaCl are present in 150 mL of a 4M solution?

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Q: A solution is made by adding 71.2g of NaS to water until the solution volume is 500.0mL. What is the…

A: Given :-  Mass of NaS = 71.2 g  Volume of solution = 500.0 mL  To calculate :-  Molarity of solution…

Q: 33.) A buffer solution contains 0.45 mol of hydrazoic acid (HN3) and 0.28 mol of sodium hydrazoate…

A:

Q: Use data to compute AG° for the following reaction. 2CIO2 (aq) + O2(g)→ 2CIO3¯(aq) AG°f (CIO2¯(aq))…

A: Given -> 2ClO2- (aq) + O2(g) ---> 2ClO3-(aq) ∆G°f(ClO2-(aq)) = 17 KJ/mole ∆G°f(ClO3-(aq)) = -3…

Q: Identify which of the following are carbohydrates. Check all that apply. • View Available Hint(s) OH…

A: We have to predict the carbohydrates among given choices .

Q: X Incorrect. Use average bond energies to estimate the energy change (in kJ/mol) for the reaction…

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Q: How does the buffer react to the addition of acids and bases? In comparison, how does water react to…

A: Buffer solutions are aqueous solutions that resist the change in pH on addition of small amount of…

Q: Consider the three flasks in the diagram below. What is the partial pressure of each gas and the…

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Q: Assuming the reaction goes to completion, how many moles of strontium fluoride should we expect to…

A: Given: Sr(NO3)2 + 2NaF → 2NaNO3 + SrF2 Concentration of: Sr(NO3)2 = 3.016M NaF = 3.644 M Volume of…

Q: Calculate the pH after the addition of 48.92 mL of KOH in the ti Answer: Check What is the pH of a…

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Q: At what temperature will molecules of oxygen have the same root-mean-square velocity as molecules of…

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Q: I Review I Constants I Periodic Table What mass of HCl can this buffer neutralize before the pH…

A: Given data :

Q: The AHvap of a certain compound is 17.58 kJ - mol and its ASan is 75.86 J. mol-. K-. What is the…

A: Given-> ∆Hvap = 17.58 kj/mole = 17580 KJ/mole (1Kj = 1000J) ∆Svap= 75.86 J.mole-1.K-1

Q: Calculate the binding energy per nucleon for the 2Fe nucleus. (Atomic masses: iron-56 = 55.9349 amu;…

A: Binding energy per nucleon can be defined as the amount of energy required to break down the nucleus…

Q: Which reagent, cinnamic acid or cinnamoyl chloride is more reactive in the ester synthesis?  Give…

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Q: Combustion reactions occur when any substance is burned. Research a particular combustion reaction…

A: A combustion is a chemical reaction between hydrocarbon and oxygen to yield carbon di oxide , water…

Q: Calculate the pH of a 0.105 M solution of ethylenediamine (H,NCH,CH,NH, ). The pKa values for the…

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Q: Identify the type of chemical reaction

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Q: refers to the number of gram equivalents of solute per liter of solution. 2. The apparatus used to…

A: 1. It refers to the number of gram equivalents of solute per liter of solution. 2. The apparatus…

Q: 3. What is the mass of a silver coin if 5.2 J is required to raise its temperature from 21.0 to 25.0…

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Q: What volume in mL of O2 gas collected over water is obtained from heating 852.7 mg KClO3 (122.55) at…

A: Given- Pressure =1atm Weight of KClO3=852.7mg=0 .5427g Temperature= 25°C=(273+25)K=298K

Q: theoretical yield

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Q: The data below apply to the reaction. A > 2B+ C. If there are no B and C present initiany. t/h 3 12…

A: Formula used K= 2.303/t × log (a/a-x) where a = initial concentration t = time in hour x= amount of…

Q: basketball is inflated to a pressure of 1.75 atm in a garage at a temperature of 18.0°C. What will…

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Q: Solid strontium hydride is an effective drying agent. It reacts with liquid water to form solid…

A: Oxidising agent: those species oxidise others and reduce itself. Reducing agent: those species…