Question5 Use the heating-cooling curve below to answer the following questions. 140 120 100 80 60 40 20 Heat added at a constant rate a. What is the freezing point of the liquid? b. What is the boiling point of the liquid? Temperature (C)

Q: Solid lithium hydroxide is used to remove exhaled carbon dioxide from space vehicles by forming…

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Q: (5.7: Similar to For Practice 5.8)What is the net ionic equation for the following reaction?…

A: The ionic species which are in aqueous medium will dissociates into its ionic form.  The solid and…

Q: OH OH Reagants needed ?

A: The above reaction is a simple oxidation.

Q: 1. Tungsten metal, W, is used to make incandescent bulb filaments. The metal is produced by a…

A: First write the balanced reaction between WO3 and H2. Using that reaction find mass of W or tungsten…

Q: 0.01061 How many sig. fig. does it has?

A: Given,  0.01061

Q: 1) What mass of NaOH (in grams) do you need to make 250.0 mL of a 1.50 M NaOH

A: The molarity of the solution is given by the equation, molarity=moles of solutevolume of solutionL…

Q: 5.3: Similar to For practic 0.125 M HNO3 solution r Na2CO3(aq) + 2HNO3(aq) O 14.9 mL O 51.4 mL O…

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Q: Reactants Products 1 Al + NaCI Fe+ H,SO, Al + AGNO, 4 Pb + Fe,O3 Ni + SnCl, 2. 3.

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Q: 2. Determine what substance was being oxidized, the substance being reduced and indicate the…

A: Solving Ques (2)  Oxidation : Increase in +ve oxidation state Reduction : Decrease in +ve oxidation…

Q: Consider the combustion of cyclopentane, C5H10 C5H10(1) + 15/2 O2(g) → 5 CO2(g) + 5 H20(1) What mass…

A: heat released Q = 1000.0 kJ  heat of formation of reaction = - 3292 kJ/mol  What is the mass of…

Q: Using dimensional analysis, find the theoretical mass of the Zn3(PO4)2-4H20 precipitate that should…

A: Given : Mass of Zn(C2H3O2)2.2H2O reacting = 2.19 g Molar mass of Zn(C2H3O2)2.2H2O = Atomic mass of…

Q: Balance the tollowing equation representing the compustion of propane in air. 1g) (5) 土

A: Combustion of hydrocarbon generally means buring of hydrocarbon in air to form carbondioxide and…

Q: (d) 44.3 kg cobalt(I) nitrate i ! mol cobalt(lI) nitrate

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Q: The oxidation of Mn2+ by oxygen proceeds according to the following 2Mn2+ + O2(aq) + 2H₂0 2 MnO2(s)…

A: Known: ∆GfoMn2+=-362.9 kJ/mol∆GfoO2aq=0 kJ/mol∆GfoH2O=-237.2 kJ/mol∆GfoMnO2=-465.1 kJ/mol∆GfoH+=0…

Q: A lotion vehicle contains 15% w/ of glycerin (sp gr 1.25), How much glycerin should be used in…

A: Given that -  Percentage weight of glycerine = 15%  Specific gravity (sp gr) = 1.25  Volume of…

Q: 5:02 Question 6 of 12 Submit Which of the following is an extensive property of the element carbon?…

A: Extensive properties are physical properties that does not depend on the amount of matter, i.e.…

Q: Balance the following chemical equation (if necessary): Ca (C₂H3O₂)2(aq) + Na₂CO³(aq) → Ca CO3(s) +…

A: A balanced chemical equation contain an equal number of atoms of each elements on both sides of the…

Q: (5.9: Similar to For Practice 5.13) What is the oxidation state of chromium in Cr₂O7²-? O +7 O 3 O…

A: Oxidation number or oxidation state both are the same. Oxidation number or oxidation state is the…

Q: Astatine Iodide, AtI, is the heaviest known interhalogen compound. To produce AtI, astatine should…

A: Stoichiometry involves the calculation of concentration of solutions in the given conditions of…

Q: The percent by mass of cobalt(II) in Co3(PO4)2 ]%. 18

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Q: (-4.3x10^4 mol/kg)x?=?mol/g

A: In this type of question we will simply identify the relationship between the given two units.

Q: 4. (3) Calculate the product distribution (in %) for the following reaction (show work): x Cl₂, hv…

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Q: what are these molecules relationship? B B

A: Given set of molecules:We have to find the relationship between these molecules

Q: 2.9g of beta-napthol and 1.65g of KOH were dissolved in 20ml of methanol with 1.8 ml of etl in a…

A: Theoritical yield is 3.101g Percent of yield 15.15%

Q: ta 1+ 77,) A bincury compound of boron ☆ hudregen hefs He following percentage compostion: 98.4%…

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Q: Calculate the mass percent (%) of propanol (CH3CH;CH;OH) when 12.8 g of propanol is added to 98.2 g…

A: Mass percent (%) = Mass of soluteMass of solute+mass of solvent×100%

Q: None

A: To calculate the mass percent of potassium (K) in potassium chromate (K2CrO4), we can follow these…

Q: When the following equation is completed and balanced, what is/are the product(s)?…

A: Given that,  solid magnesium oxide (MgO) undergoes reaction with aqueous hydrochloric acid (HCl).…

Q: t0a compound cannot be atoms. 2.7 Can the relative amounts of the components of a mixture vary? Can…

A: 2.7 Mixture is composed of physically bounded components whereas compound is composed of chemically…

Q: A concentrated solution of hydrochloric acid contains 120.0 g of water and 72.0 g of hydrochloric…

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