Think about how to determine the molar mass of NH₂OH. In that amount of ammonium hydroxide, how many moles would you have? In other words, the molar mass of any compound is equal to A. 2 moles B. 1 mole C. 4 moles D. 0.5 moles

Q: Which of these combinations would make a good buffer solution? Circle all that apply. a. KHCO3,…

A: The solutions which resist to change in its pH value upon the addition of small amounts of either…

Q: Show all your calculation work to solve the following mass-mass stochiometry problem; How many grams…

A: Matter can neither be created nor be destroyed. It can only be converted from one form to another.…

Q: Describe the preparation if 500 mL of 0.0740 M CI2 solution from solid BaCI2 2H2O (244.3 g/mol).

A: To prepare 500 mL of 0.0740 M CI2 solution from solid BaCI2 2H2O, you would need to follow these…

Q: Which of the following represents the most stable carbocation? a. b. C. d. Ph Ph Ph Ph

A:

Q: Solid potassium sulfate is slowly added to 150 mL of a 0.455 M barium iodide solution until the…

A: Multiple questions

Q: What is the mass in grams of Na1 (22.99 g/mol) in 25.0 g of Na2SO4 (142.0 g/mol)?

A:

Q: A solution NH3 that contains 72 mL of 0.043 M ammonia, NH3, is titrated with 0.083 M HCI. The Kb of…

A: Moles of NH3 (M1) =0.043M Moles of HCl (M2)=0.083M Volume of NH3 (V1) = 72ml Volume of HCl (V2) =?

Q: Consider the reaction H₂(g) + C₂H4(g) →C₂H6(g) Using the standard thermodynamic data in the tables…

A: The balanced chemical equation given is H2 (g) + C2H4 (g) → C2H6 (g) The pressure of H2 (g), C2H4…

Q: A chemist dissolves 815. mg of pure barium hydroxide in enough water to make up 110. mL of solution.…

A: Given :  Mass of barium hydroxide = 815. mg = 0.815 g (since 1 mg = 10-3 g)  Volume of solution =…

Q: At 15 °C, the value of Kw is 4.5 x 10-15. What is the equilibrium concentration of OH- at this…

A:

Q: A reaction between ammonia and oxygen is the first step in the prepa- ration of nitric acid (HNO3)…

A:

Q: In a stoichiometry problem, you are asked to find the number of moles of a reactant that will form 3…

A: An equation for a chemical reaction is said to be balanced if both the reactants and the products…

Q: A 11.7 g sample of an aqueous solution of perchloric acid contains an unknown amount of the acid. If…

A:

Q: Select the best description of the molecule shown below. || O NH₂ Amide Acetal Peptide Carboxylic…

A: In a given compound two functional groups are present.  Out of two functional groups one is…

Q: Consider the following hypothetical reactions :  A ------>   B   ΔH = + 30 kJ B ------>  C    ΔH =…

A: According to Hess's Law total change in enthalpy of a chemical reaction is equal to sum of enthalpy…

Q: can you please do part d?

A: pH change for the solution

Q: each chemical reaction listed in the table below, decide whether the highlighted atom is being…

A: Oxidation- Loss of electrons from any species and increase in oxidation state is called oxidation.…

Q: Gasohol is a mixture of ethanol (C2H5OH) and gasoline. Write the chemical equation for the…

A: (a) To write a balanced chemical equation for the combustion of ethanol.  Combustion is a kind of…

Q: b.Alkylation Reaction + Br 브

A: A question based on reactions of aromatic compounds. Structure of an organic compound is given for…

Q: A mixture is 18.7% NaCl, 20.6% CaCl2, and 60.7% NaBr. What mass of the mixture contains 0.454 moles…

A:

Q: 3) Given the titration curve for a titration between ammonia, NH3, and hydrochloric acid, HCl: A)…

A: Since the question contains more than 3 subparts, we will answer only first 3 subparts for you. In…

Q: Complete the data table below:   n (moles) V (L) 0.100 1.223 0.200 2.445 0.300 3.668 0.400 4.891…

A: This question is based on mole concept.

Q: NaOEt EtOH

A:

Q: ADDITIVES: (per day) Sodium Chloride as Acetate as Phosphate Potassium Chloride as Acetate as…

A: a) The sodium source is sodium chloride and sodium acetate. Hence, total Na+ = 40 mEq + 60 mEq = 100…

Q: estigate In the following acid-base reaction, H3O+ is the A HCI(g) + H₂O(1)→ H3O+(aq) + Cl-(aq)…

A: We know, base  takes H+ to form conjugate acid and acid releases H+ to form conjugate base .

Q: Start with benzene to prepare chlorambucil

A: We have to synthesize benzene to chlorambucil.

Q: Your favorite recipe for preparing 100 brownies requires the following: 6 eggs, 5 cups flour and 2…

A: Preparation of 100 brownies required 6 eggs, 5 cups flour and 2 sticks butter

Q: Draw the fisher mechanism for propanoic acid + 1-pentanol —> pentyl propanoate   Please draw

A:

Q: Calculate the pH of the following aqueous solution: 0.39 M NH4Cl (pKb for NH3 = 4.74) O a. 2.57 O b.…

A:

Q: Determine if the following salt is neutral, acidic or basic. If acidic or basic, write the…

A: Given,  The salt: (CH3)3NHBr  Name: trimethylammonium bromide

Q: a) What is the simplest formula of a compound if a sample of the compound contains 0.273 mol X,…

A: a) Given, moles of X = 0.273 mol moles of Y = 0.819 mol moles of Z = 0.546 mol Simplest formula of a…

Q: The complex ion Cu(NH3)4 is formed in a solution made of 0.0500 M Cu(NO3)2 and 0.400 M NH3. What are…

A: This question belongs to dynamic equilibrium.

Q: 1. Consider the following exothermic reaction CO2(g) + H2O(l) = H+(aq) + HCO3-(aq) Assuming the…

A: Consider the following exothermic reaction CO2(g) + H2O(l) = H+(aq) + HCO3-(aq) Assuming the…

Q: Equal volumes of the following pairs of solutions are mixed. Which pair will produce a buffer…

A: Buffer solution is the solution which resist the change of pH on addition of small amount of acid or…

Q: Of the following, which is the most stable alkene? O O

A:

Q: 3NO2(g) K=1.0 × 10-11 N₂O5(g) + NO(g) If a 4.00 L container initially holds 0.13 mol of NO2, how…

A:

Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A:

Q: c) L A e) Br b) d) f) H CH₂CH₂ A C(CH3)3 a H OH

A: Following structural formula of compounds given -

Q: Mercury has the following physical properties: normal melting point = -39°C, normal boiling point =…

A:

Q: (a) H₂O2 molecular mass conversion factor (b) C6H12 molecular mass conversion factor (c) SO₂Cl₂…

A: H2O2,C6H12, SO2Cl2

Q: This is the structure of xylan given, is the mechanism still the same (would there be two hydrolysis…

A:

Q: 7. In gas chromatography, increasing the column length leads to analytes, assuming all other…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: A buffer solution that is 0.409 M in CH3COOH and 0.409 M in CH3COOK has a pH of 4.74. The addition…

A: A buffer is a solution which resist any change in pH on adding a small amount of acid or base . it…

Q: QUESTION 29 What would be the best choice of reagent(s) to perform the following transformation? ?…

A: Organic reactions are those in which organic reactant react to form organic products. In the given…

Q: What are the principles of flame ionization detection? Was it a good choice for these analytes?

A: FLAME IONIZATION DETECTION  (FID)

Q: Metallic zinc reacts with aqueous HCl. Zn(s) + 2 HCl(aq) → ZnCl2(aq) + H2(g) What volume of 2.90 M…

A: The question is based on the concept of reaction stoichiometry. we need to calculate volume of…

Q: g+ + Sn2+ oxide reduction equilibria

A:

Q: (b) If the pH of water in a lake falls below a value of 5, fish often fail to reproduce. How much…

A: pH is a measure of acidity. pH = – log[H+] [H+]= 10–pH

Q: Rank the alkyl halides shown in the order of increasing reactivity for an E2 mechanism. (Left…

A: An E2 (elimination bimolecular) reaction is a type of chemical reaction that occurs between a strong…

Q: For each pair of compounds listed, check the box next to the one with the higher boiling point.…

A: A question based on properties of liquids. A table of molecules with variable boiling points are…

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.