коме, RT котви, 80°С 2 I ВиџN Br, RT BuLi, -78°C З Ч

Q: If the concentration of gaseous CO₂ is 50 µg/m³ at 20 °C and 1 atm, what is the concentration in…

A: Given: Concentration of CO2 = 50 μg/m3

Q: Propose an efficient synthesis of hexylamine from hexanoic acid. OH "NH₂

A: Concept introduction: We know carboxylic acids are weak organic acids and generally, the carbonyl…

Q: Every gallon of gasoline burned in an internal combustion engine produces 202 mols of CO2 (Mol Wgt…

A: First calculate the gallons of gasoline required to drive that car. Convert that gallon to moles and…

Q: A gas releases 34 KJ of energy and has 12 KJ of work done on it. Calculate the delta E for this…

A: The relationship between work(w),heat (q)  and ΔE (internal energy change) is given by  ΔE = q + w…

Q: Д HBr R-0-0-K OH PCC

A:

Q: Effect of Adding Acid H₂O 0.1 M NaCl High pH buffer Low pH buffer Initial pH 5.8 6.1 10.0 3.8 pH…

A: Here to calculate change in pH and to determine whether the given solutions are buffer solution or…

Q: 4) The concentration of a pure solid or a pure liquid is left out of the expression for the…

A: To solve this problem we have to know about the equilibrium constant.

Q: If the Ka of a monoprotic weak acid is 5.9 x 10-6, what is the pH of a 0.21 M solution of this acid?…

A: Answer:  Here we have to calculate the PH of a monoprotic weak acid which has Ka=5.9×10-6

Q: Provide the name of the following nucleoside. HO HT MP 0. ΤΗ OH OH ine A N G C TU NH DP TP…

A: A nucleoside is formed by the reaction between the nitrogenous base and pentose In this, nitrogenous…

Q: Provide the abbreviation of the following nucleotide. of for H OH OH d A G C TU MP DP TP deoxy…

A: Abbreviations for nucleotides can write accordingly their structure. The first word of abbreviations…

Q: 14 carat gold (an alloy) is

A: As we know , Alloy is a homogenous mixture of two or more metals or a metal & a non metal…

Q: actually added to 1 tablet (L) *Concentration (M) of HCI Report to 4 sig figs Expand M out to a…

A:

Q: 3. Ammonium carbamate (NH₂COONH4) is found in the blood and urine of mammals, and decomposes in the…

A: 3. Recall the decomposition reaction,                                   NH2COONH4 s ↔ 2 NH3 g +…

Q: Using the thermochemical data below calculate the lattice energy for the formation of Na₂O. Na(s) →…

A: we have to calculate the lattice energy of the formation of Na2O • Since, here the lattice energy…

Q: 11. The reaction shown, which is important for the breakdown of polypeptides, would be favored under…

A: The question is based on the concept of organic reactions. we need to identify the conditions in…

Q: m) Which pyranose ring (A, B, C, or D) in the tetrasaccharide below is derived from D-altrose? The…

A: m. Given that, the structures of tetrasaccharides and four different aldohexose are shown below We…

Q: . A donut contains 37.8 grams of sucrose (C12H22O11). How many moles of sugar are in the donunt?

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Thus,

Q: Provide the (i) IUPAC name, (ii) condensed formula and (ii) molecular formula for the following…

A:

Q: A mixture is made up of at least two things they are called?

A: A mixture is a combination of two or more substances but they are not combined chemically. They can…

Q: Name of person Now titrate. *Final buret reading HCI (ML) *Initial buret reading HCI (mL) Show how…

A:

Q: is the maximum mass of S, that can be produced by combining 79.0 g of each reactant? 8 SO₂ + 16H₂S…

A: Eight mole of SO2 react with 16 mole of H2S

Q: What is the pH of a 1.8 M solution of HC1O4? pH =

A: Given , Concentration is 1.8 M we have to find pH

Q: 5. (a) HF is an acid. What is it's conjugate base ? (b) CIO₂ is a base. What is it's conjugate acid…

A: HF  ClO2-  H2PO4-

Q: How many total hy drogen atoms are in the reactants shown? H_(2)S + Fe(OH)3

A: In this question, we will determine the total number of hydrogen atoms are in the reactant molecule…

Q: 6. Use the standard heat of formation AHF to calculate the AH for the reaction: a. C3H8 (g) + 5 O2…

A: Given: C3H8=-104 kJO2 = 0 kJCO2=-393.5 kJH2O=-286 kJ

Q: Note: The equation shown does not necessarily reflect the stoichiometry of the reaction. Use correct…

A: Given that -  Mass of pthalaldehyde = 0.274 g  Mass of cyclohexanedione = 0.117 g  Mass of Petri…

Q: Be sure to answer all parts. Given that 3 2Al(s) + =0₂(g) 20₂0 and →Al₂O3(s) 3 2Fe(s) + O₂(g) →→…

A: According to Hess's law change of enthalpy in a chemical reaction is same regardless of whether the…

Q: Draw the diene and the dienophile used to make: HN O H H

A: This question belong to Pericyclic reaction that is Diels-Alder reaction. Diels-Alder reaction:…

Q: Name the carbonyl compound that would be formed by the complete acidic hydrolysis of the following…

A: This question belong to reaction mechanism of organic compounds. Hydrolysis: addition of water

Q: What is the percent ionization of a 0.0550 M solution of hydrocyanic acid, HCN? The Ka of HCN is…

A:

Q: nitrogen-15    express the answer as an isotope. 10n+2713Al→?+42He01n+1327Al→?+24He  Express answer…

A: Since, Balanced nuclear reaction means number of proton in both side is equal and also mass number…

Q: 76)A mixture of hydrazine (N2H4) and hydrogen peroxide (H2O2) is used as a fuel for rocket engines.…

A:

Q: What is the net charge of this peptide at pH 5? Use the pKa values from Table 4-1 from Voet, Voet…

A: The overall or net charge on a peptide (or protein) is simply the sum of the charges of every…

Q: 11) The following reactions have equilibrium values all measured at 500 K. Arrange them in order of…

A: Since, We know that, Higher the value of the equilibrium constant,  more readily the formation of…

Q: This is the chemical formula for zinc bromate: Zn (BrO3), Calculate the mass percent of bromine in…

A: Given, Chemical formula for zinc bromate: Zn(BrO3)2 Mass percent of Bromine in zinc bromate = ? %…

Q: Determine the mass of Br2 produced from the reaction of 7.00 mol of HBr with excess K₂SO4. K₂SO4 + 2…

A: Answer: Thee quetsions are based on the concept of limiting reagent. Limiting reagent is the…

Q: Apply the significant figure rule to the final answer.  Example attached and dig figures rules

A: The solution should have the same number of decimal places as the limiting term when adding or…

Q: 1. Consider the carbon atom. Which of the following statements is CORRECT? A) In a carbon atom, the…

A: The question is based on the concept of atomic structure and chemical bonding. we need to identify…

Q: A 10-liter [L] flask contains 1.3 moles [mol] of an ideal gas at a temperature of 20 degrees Celsius…

A:

Q: Draw the products and necessary reagents of the three step retrosynthetic reaction sequence shown…

A: In this question, we will draw structure of the missing products and reagents which are use for…

Q: 4. Predict the product(s) of the following reactions. NHCOPh o-methylphenol PH₂ fuming H₂SO4 HONO2 /…

A: The above given reactions are electrophilic  aromatic substitution reaction. The substitution…

Q: Which of the following alkyl bromides would react fastest in the different reaction mechanisms given…

A: We know for SN2 the alkyl halide must be less hindered . For E1 the carbocation must be more stable…

Q: 5. Show how to perform the following synthesis. n

A: The ozonolysis followed the conversion of carboxylic acid to acid chloride and Friedel-Crafts…

Q: If 25.0 mL of 12.0 M HCl is diluted with water to a volume of 500 mL, what is the molarity of the…

A:

Q: Enter your answer in the provided box. The enthalpy of combustion of benzoic acid (C6H5COOH) is…

A:

Q: The element in which the 5th energy is first completely filled is not yet known. True False

A: The given question is based on the concept of atomic structure. we need to identify whether 5th…

Q: what would be the carbon skeleton for this line forumla?

A: The end of the line represents a carbon atom, and each carbon atom is assumed to be attached with…

Q: 1. What is the mass percent of each solute in the mixture formed by adding 22 g of calcium sulfate…

A:

Q: Br 1. Nal, acetone 2. H₂O, 20 °C

A:

Q: What the difference is between a strong acid and a weak acid

A: The objective of the question is to state the difference between strong acid and weak acid :

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.