A solution was prepared by dissolving 11.0 g of compound in 270.0 g of ethanol raising the boiling point to 80.31 °C. a) What is the boiling point elevation? b) What is the molality of the solution?

Q: Consider the reaction: 3Fe + 4H20 --> Fe3O4 + 4H2 The MW of FezO4 is 231.53 g/mol You react 2.5X1022...

A: The amount of Fe3O4 produced can be calculated as

Q: sider the following reaction: Mg + F2 MgF2 eaction starts with 31.58 g of Mg and 51.54 g of F2? g MG...

A: Limiting reagent is mg

Q: What is [OH-] in an aqueous solution (in mol L-1) containing [H3O+] = 3.16 x 10-3 mol L-1?

A:

Q: Calculate the mass percent of water in the compound NiCl2. 6H2O

A:

Q: 12. a. What is the molarity of a solution made by mixing 125 mL of 5.00 M H3PO4 with 325 mL H2O? b. ...

A:

Q: find the length in m of a rectangular solid that weighs 95.5 g and has a width of 2.50cm and thickne...

A:

Q: Consider the unbalanced redox equation, Vo, (aq) + SO2(3) + H*(aq) The reducing agent is →VO²"(aq) +...

A:

Q: An aqueous solution contains a [H3O+] that is 1.0 × 10–3 M. What is the [OH–] of this solution?

A: Given :-  [H3O+] = 1.0 × 10–3 M  To calculate :- [OH-]

Q: Write an equation to show that nitrous acid , HNO2 , behaves as an acid in water. ____ + H2O → ____...

A: Acid is the one that donate H+ ion to the aqueous solution and form anion.

Q: +] QUESTION 31 Which is true regarding the molecular polarity in the compound shown below F: -- H- :...

A:

Q: Calculate the hydronium concentration for 0.15M HCl if the equilibrium constant is Ka=10^10. Give th...

A:

Q: For the reaction 2NOCI 2NO + Cl, the rate constant k equals 0.020 L mol-1s1 at a certain temperature...

A:

Q: Calculate the volume percent, % (v/v), of solute in the following solution: 20.0 mL of methyl alcoho...

A:

Q: Find the empirical formula for a compound which contains 32.8% chromium and 67.2% chlorine.

A: Solution-

Q: Write the equilibrium constant expression for this reaction: H,SO,(aq) → 2 H¨(aq)+SO (aq)

A:

Q: NO + MnO2 → NO2 + MnO4 What is the coefficient of H* in the final redox reaction if balanced in an a...

A:

Q: 6. Write the empirical formula for acetylene.

A:

Q: Acetylene (C,H,) gas is often used in welding torches because of the very high heat produced when it...

A: Given, Acetylene reacts with oxygen gas to produce carbon dioxide and water. Moles of carbon dioxide...

Q: Calculate the molecular mass of isopropanol (C3H$O).

A: The sum of the atomic masses of all atoms in a molecule

Q: 1.0 0.5- 100 200 300 400 Temperature (K) (a) Estimate the normal boiling point and freezing point of...

A:

Q: The decomposition of nitrogen dixoide, 2NO2(g) → 2NO(g) + O2(g) has a rate constant of 0.498 M/s  ...

A: Given,  For, Temperature, T1 = 319°C = (319+273) = 592 K  Rate constant, K1 = 0.498 M/s  Activation ...

Q: This molecule undergoes a substitution reaction through an SN1 pathway when warmed and stirred with ...

A: HBr Is a strong acid, which protonates the alcohol.  Protonated alcohol will eliminate as water and ...

Q: 0.2500 g sample of swimming pool oxidizer containing calcium hypochlorite as the active ingredient w...

A:

Q: Which of the following have more than one resonance structure? OA. U A. SO42 (hint: there are two do...

A: The structure of SO42- is As SO42- has two double bonds with two oxygen atoms and -1 charge on two ...

Q: Calculate Kb for [A^ - ] if the ionization constant of HA is 3.5 * 10 ^ - 4.

A: Given :- Ka for HA = 3.5 × 10-4  To be calculated :- value of Kb 

Q: NO3– + MnO2 → NO2–+ MnO4– Identify the reducing agent.

A: Adding oxygen is called oxidation and removing of oxygen is called reduction

Q: Which side of an equilibrium reaction is favored when K is greater than 1? K is less than 1?  K is ...

A:

Q: 5. Cro,2 + Cio- a. Write the balanced reduction half reaction. b. Write the balanced oxidation half ...

A: Oxidation means loss of electrons while reduction means gain of electrons. The species that gets red...

Q: 2. P4) → H2PO2 (aq) + PH3(2) [acidic solution] a. Write the balanced reduction half reaction. b. Wri...

A: The above given reaction is an example of disproportionation Reaction in which same species understa...

Q: Nickel and carbon monoxide react to form nickel carbonyl, like this: Ni(s)+4 CO(g)→Ni(CO),(9) At a c...

A: Equilibrium  constant kc is the ratio of the product concentration  of the product  to the product  ...

Q: A second order reaction has a rate constant of 8.7x10-4/(M·s) and an activation energy of 4.294x104 ...

A:

Q: Give the letters that represent the four compounds with general formula CnH2n+2

A: The general formula of hydrocarbon  CnH2n+2 is for Alkane where n is the number of carbon atoms. The...

Q: Calculate the pH of a 0.20 M solution of sodium acetate (NaCH3COO) given that the Ka of acetic acid ...

A:

Q: 7. Calculate the volume of pure isopropanol in the 50 mL you measured, using the %. Recall that a % ...

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Q: The following molecule contains two functional groups, a haloalkane group and an alkyne. CH3—CHBr—C...

A:

Q: 1. Which of the following is NOT an example of physical property? B. Length A. Texture C. Intensity ...

A:

Q: Give a clear handwritten answer of this question given below

A:   Types of bonds  1. Ionic bond:  It is formed due to transfer of electrons  A bond between Electro...

Q: A sodium hydroxide solution has a pH of 12.40, what is the OH– concentration in this solution?

A:

Q: Tên equations are listed below, Some are synthesis reactions, Some are not. Make a check () in the c...

A:

Q: color of the flame produced when using in AAS in potassium determination  a. orange  b. none of th...

A: Potassium produce flame color blue purple.  Hence e  option is correct that is purple. 

Q: Nitryl bromide, NO2Br, decomposes into nitrogen dioxide and bromine. 2NO2Br(g) → 2NO2(g) + Br2(g) ...

A:

Q: normality of 0.5781 g acid (eq wt = 187.3) in 250.0 mL of solution

A:

Q: Calculate the solubility at 25 °C of PbCro, in pure water and in a 0.0190M Na,CrO4 solution. You'll ...

A:

Q: Answer the following questions for square planar metal complexes ML4 (point group Dan): 2) draw the ...

A: Electronic configuration of pt78 = [Xe]6s24f145d8    

Q: Procedure:  Using different references or resources (Books, e-books, journals and internet)  Ident...

A:

Q: Tertiary butyl chloride reacts in basic solution according to the equaqtion (CH3)3CCl + OH-  → (CH3...

A:

Q: Equations A. Zn + H2SO4 > ZNSO4 + H2 B. Mg + 0, - 2MgO C. Na,S + 2HCI 2NACI + H,S D. H,S + S0, - 3S ...

A: If number of atom and charge are balance both side that is  products side and reactants  side the eq...

Q: What is the type of column used in chromatography (HPLC) and it's applications and mechanism

A: It is as follows

Q: Which compound produces three ions per formula unit by dissociation when dissolved in water? O alumi...

A:

Q: Identify and label the position in the vancomycin

A:

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.