etimes used to infla grams of CaH2 are

Q: estion 22 A solution is made by combining 46.5 mL of a 0.83 M HNO2 solution and 46.5 mL of a 0.62 M…

A: Volume of HNO2 = 46.5 ml Molarity of HNO2= 0.83 M Volume of NaNO2 = 46.5 ml Molarity of NaNO2 = 0.62…

Q: Question 3 The pyridinium ion (C5HANH) is a weak acid (Ka = 5.60 x 10-0). Calculate the pH of a…

A: The solution will act as acidic buffer.

Q: The energy required to break the H- CI bond to give H* and CI would not be called the H-CI bond…

A: Bond energy is amount of energy needed to break atoms involved in molecular bond into free atoms.

Q: Using the periodic table for this course (Chem 100 Periodic Table.pdf ), which substance contains…

A:

Q: The molar volume of a certain solid is 142.0 cm3 mol-1 at 1.00 atm and 427.15 K, its melting…

A: Calculate : ΔSfus =? and ΔHfus =?

Q: 1 can you draw cellulose in 2 D structure please

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Q: 2 B (s) + 3 H2 (g) → B2H6 (g) ΔrHº = ??? Use the following information to solve for the enthalpy of…

A: Given, a) 4B (s) + 3 O2 (g) → 2 B2O3 (g) ΔrHº = -2544 kJ/mol b) H2 (g) + 1/2 O2 (g) → H2O (g) ΔrHº =…

Q: the reaction of 4-methoxybenzaldehyde and cyclohexanone produces what product? Draw the product…

A: The double aldol condensation that occurs between 2 molecules of 4-methoxybenzaldehyde and 1…

Q: X represents a nonmetal atom with an atomic mass of 107.91 amu.  Calculate the number of grams of…

A:

Q: An aqueous antifreeze solution is 52.0% ethylene glycol (C2H6O2) by mass. The density of the…

A: Given-> Percent by mass of ethylene glycol = 52.0 %  Density of solution = 1.067 g/cm3 = 1.067…

Q: When using a calibration curve and beers law if one of your a diluted test solutions had an…

A: Beer- Lamberts law gives a linear relationship between concentration of the sample and its…

Q: The SN2 reaction can be carried out intramolecularly (in the same molecule). What product do you…

A:

Q: A beaker contains 26.202 mL of a 0.131 M solution of KOH. This is titrated with 13.01 mL of a 0.0425…

A: The solution is given below -

Q: The balanced chemical equation for the reaction between iron(III) oxide and aluminum is: Fe203 (s) +…

A: 2 moles of aluminum and 1 mole of iron(III) oxide react to produce 1 mole of aluminum oxide and  2…

Q: Part C In the gaseous state, chlorine exists as a diatomic molecule Cl2 (Molar mass = 70.9 g/mol).…

A: Here we have to determine the moles of Cl2 present in 150 g of Cl2 and the mass of 2.90×10^22…

Q: A liquid solution at 400°K and 1 atm, contains 5mol% of '1' and 95mol% of '2'. The mixture is cooled…

A:

Q: 4)Final equation with explanation describing how (H+) interferes (shifts equilibrium) for making…

A: Seawater contains many dissolved substances, chemicals and ions. Marine organisms make their shells…

Q: For the following reaction and data (all data is valid at 298 K): 4??2(?) +?2(?) +2?2?(?) ⇌ 4???3(?)…

A: Given that

Q: Which of the following processes has a AS > 0? O A. lithium fluoride forms from its elements in…

A:

Q: google.com/forms/d/e/1FAlpQLSdljP-fEy80lqljkAAOXL12mhsGSzu01J_UZWFbal220 realism - The M. New folder…

A: 2:30 - The best solvent on the earth is water. This is because it dissolves many substances other…

Q: Question 21 If 17.6 mL of 0.195 M HCIO4 are added to 7.36 mL of 0.0369 M CSOH, what is the final pH?…

A: Calculate moles of acid and base, then, calculate remaining moles of acid. Add the volume of acid…

Q: Which of the following best describes the Ksp expression for Pb(OH)2? OA Pb2*1 (2 x [OH]) OB Pb2*1…

A: Pb(OH)2 is sparingly soluble salt. It dissociate partially into the water.

Q: Identify the reagents you would use to accomplish each of the following transformations: OH "Br En…

A: We have to carry out the given transformation with the appropriate reagents.

Q: Rank the following from greatest molar solubility (4) to the least molar solubility (1). Assign a…

A: Let us calculate the solubility and then further we will discuss its order.

Q: 2. Calculate the pH of a solution when 10.00 mL of 0.1000 M NaOH is added to 20.00 mL of 0.1000 M…

A:

Q: A teacher adds a small amount of a substance to an erlenmeyer flask while demonstrating titration.…

A: A teacher adds small amount of a substance to an erlenmeyer flask while demonstrating titration.Lets…

Q: m the least to greatest in terms of standard entropy (1 a

A:

Q: Assume the heat capacity values in Table 2.3 apply at all temperatures unless otherwise stated. (1)…

A: The answer is given below

Q: Be sure to specify states such as (aq) or (s). If a box is not needed leave it blank. If no reaction…

A: Given, aqueous solutions of barium hydroxide, Ba(OH)2 are combined hydrofluoric acid(HF) The net…

Q: Which of the following statements below describe what is meant by a steady state, in terms of the…

A: B. II and IV. In steady state, the amount of new capital accumalated is exactly equal to the…

Q: Question 17 A beaker contains 100 mL of a 2.27 M HCN, 2.27 M CN buffer solution. Then, 25.6 mL of a…

A:

Q: [Ka1 = 5.4 x 10-6; Ka2 = 5.8 x 10-10 %3D OA.0.10 M OB. 5.8 x 10-6 M OC21x 10-5 M OD.5.4 x 10-10M O…

A:

Q: Identify the basic center from a , b, and c. And give explanation

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Q: The molecular formula of rimantadine is C12H21N.    How many carbon atoms are in 80.44 grams of…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Calculate the induced dipole moment of SO2 due to a K+ ion that is 5.2 Å away from the center of the…

A: Given as Distance from SO2 = 5.2 A0  Polarizability of SO2=3.72×10-30 m3 The induced dipole moment…

Q: Calculate the pH of the following solutions: a) 0.1000 M NaOH, b) 0.1000 M CH3COOH (Ka = 1.8x10–5),…

A:

Q: Predict the sign of AS°rxn (positive or negative) for the following reactions: - v isopropanol…

A:

Q: Draw the 2D network structure of crystalline AND amorphous B2O3

A: Given that, the 2D network structure of crystalline AND amorphous B2O3

Q: A certain radioactive nuclide has a half life of 8.00 hour(s). Calculate the rate constant for this…

A:

Q: Calculate the heat change (in kJ) for the conversion of 500 g of water vapor at 130.0°C to ice at…

A: Give: Mass of water = 500 g. Initial temperature of water = 130.0 oC And final temperature of water…

Q: rmine the type of nuclear transmutation shown by ach of ollowing reâctions: alpha decay, beta decay…

A:

Q: h for dellivery from the supplier? Assume that the atomic mass of Ca is 47.0 u.

A:

Q: What is the pH of a solution that is prepared by adding 30.23 mL of 1.77 M NaOH to 0.646 L of 0.476…

A: THIS WILL FORM AN ACIDIC BUFFER AS THE AMOUNT OF WEAK ACID(HN02)WILL REMAIN IN EXCESS AFTER REACTION…

Q: 8.20 The Berthelot equation of state for gases is (P+ a/TV)(Vm – b) = RT (a) Show that the Berthelot…

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Q: A mixture of 0.0375 g of hydrogen and 0.0185 mol of oxygen in a closed container is sparked to…

A: Amount of Hydrogen remains unreacted = 0.00033 gram. Amount of H2O formed after reaction= 0.3323g

Q: Four solutions of an acid dissolved in water are sketched below, as if under a microscope so…

A: According to the Arrhenius theory, the substance that gives hydrogen ion H+ in the aqueous solution…

Q: NaOEt, ELOH (2)

A:

Q: A BOA kd ous soluion How many ppm of Br, s ths oluton 35.1 pp

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

Q: The overall charge on the polyatomic "dichromate" ion (Cr207) is -2. What is the oxidation number of…

A: Dichromate ion  [Cr2O7]2- has two Chromium ions with 7 oxide ions  Each oxide ion has a charge of -2…

Q: (2) NaOEt, ELOH

A: