How many significant figures are there in each of the following numbers? 90.59 0.01776 272.5 0.53

Q: Which of the following is not a valid resonance form of the intermediate species in the reaction…

A: This is electrophilic aromatic substitution reaction. NO2+ act as electrophile. Nitric acid react…

Q: Draw the mirror image of the compound shown. HS NH₂ O ОН

A: Answer:The compound that has chiral center and its mirror image cannot be super imposed on it then…

Q: A chemist prepares a solution of sodium chloride (NaCl) by measuring out 57.9 µmol of sodium…

A: The concentration of the solution can be expressed using several terms.Molarity is one of the ways…

Q: Question 1. Complete the mechanism for the following cyclic reaction. You can ignore the stereogenic…

A: We have to complete the mechanism of the above transformation.

Q: Find the density and volume of ball bearing with mass of 1.0445 g and diameter of 257 mm^3 (Please…

A: Density = Mass/Volume Volume of sphere = 4πr3/3 r = radius = diameter/2 1 mm = 0.1 cm

Q: Give the abbreviated electron configuration for Pd (46). O [kr]5s²4d8 O [Sr]4d8 [Rb]5s24d10 O…

A: Given,The element : Pd ( 46 )

Q: What is the mass (in grams) of 0.263 moles of water?

A: Moles of water=0.263molTo find the mass of 0.263 moles of water (H2O), you can use the molar mass of…

Q: 3. The decomposition of di-tert-butyl peroxide (DTBP) is a first order reaction with a half- life of…

A:

Q: Which of the following compounds do you predict should undergo SN1 substitution at the fastest rate?…

A: This question belongs to reaction mechanism of organic compounds that is Unimolecular nucleophilic…

Q: Which of the following compounds has an internal plane of symmetry?

A: A plane of symmetry is a symmetry element. The plane of symmetry is defined as a flat surface that…

Q: Provide IUPAC name for the molecule below Type your answer and submit Br

A: -Select the parent chain with the longest possible continuous carbon chain with a maximum number of…

Q: Describe the relationship between the pressure and the volume of a confined gaseous sample. What…

A: Answer:The volume of the container is considered as volume of the gas because gases can expand as…

Q: Complete the table by checking the box next to each oxygen-containing functional grou box, enter the…

A:

Q: Le P(Ph)3 H in H 2 CH3CH₂OH H₂SO4 (catalytic)

A: Ylide and carbonyl compound react with each other to form C=C bond. This is Wittig reaction.Aldehyde…

Q: Provide the correct systematic name for the compound shown here. H₂C NH₂ CH3

A: The correct systematic name for the compound given below.

Q: Balance the following chemical equation and determine the number of moles of CO₂ (g) produced when…

A: We need to balance the equation first then we have to determine the moles of CO2 produced.

Q: Convert the model below to a skeletal drawing.

A: The skeletal structure of an organic molecule is the representation of the chemical compound in…

Q: Classify each of the following as either a substitution, elimination, or addition reaction. Hoh HO…

A:

Q: Using your understanding of bond enthalpies, predict the enthalpy change associated with the…

A:

Q: Consider the following unbalanced equation: C2H6(g) + O2(g) → CO2(g) + H2O(g) Which amount…

A: The number of moles of any substance is defined as the ratio of mass given of that substance with…

Q: ration (PV-K) and the valve of I (1084.9 kpaxm²) Use the equation to • Calculate the expected…

A:

Q: 10. Calculate the equilibrium potential for the reaction Az₂O + 2H* + 2e = 2Az +H₂O at pH = 12. (a)…

A: Given Data:To determine:Ques 10: Equilibrium potential of Ques 11: Equilibrium potential of

Q: Determine the velocity of an electron that has 3.41 x 10-21 joules of kinetic energy. The mass of an…

A: Answer:Kinetic energy of a particle is:Here:

Q: What is the value of the quantum number my for the LAST ELECTRON added in an atom of selenium? 4 1…

A: The set of numbers used to describe the position and energy of the electron in an atom are called…

Q: Draw the major organic product of the Bronsted acid- base reaction. Include all lone pairs and…

A: We have to provide the major product for the given reaction.

Q: (a) Write the cell reaction and electrode half-reactions of each the following cells:…

A: Data

Q: Name Benzil Sodium borohydride absolute Ethanol Hydrobenzoin Equaivalence n(mmol) MW (g/mol) m(g)…

A: Table

Q: A student ran the following reaction in the laboratory at 529 K: COC12 (9)CO(g) + Cl₂ (9) When she…

A: The equilibrium constant of a reaction is defined as the ratio of the concentration of products to…

Q: Question 3 If you surpass the mark when filling the volumetric flask upon making the sample…

A: Concentration of the solution depends on the mass of solute dissolved and volume of the solution.

Q: structure OH OH OH name 0 2,8-dimethyl-5-nonane. 0 C

A: IUPAC name consists of-Prefix + Root Word + SuffixA single longest chain is considered called parent…

Q: 3. Provide the structures in the boxes for the compounds that are named below. a)…

A: a) 5,5,6-trimethyoct-7-en-1-yn-4-olThe longest carbon chain of this compound have 8 carbons since…

Q: A violet line occurs at 419.9 nm in the emission spectrum of sulfur. What amount of energy, in…

A:

Q: if a sample contained the mercury (i) ion, hg+ would it contaminate p1 (AgCl and PbCl2) or s1 (Cu2+…

A: Cations: All of the ions in S1 (Cu2+ and Bi3+) are cations. This means that they have a positive…

Q: Predict the hybridization and geometry around each indicated atom. sp³ trigonal pyramid sp²…

A: Intermixing of atomic orbitals of comparable energy is called hybridization. In hybridization hybrid…

Q: 2. What is the IUPAC name of the following compounds? a) H,C b) H,C. H,C c) H,C- CH, CH, تطرح CH,…

A: The IUPAC nomenclature rules for the organic alkane, alkene and alkyne are: Identify the Longest…

Q: can you please answer number 8,

A: We have find the answer of question 8.

Q: 1 For each of the molecules below. Circle and label the following functional groups you can find…

A: Functional groups are atoms or a group of atoms that are responsible for the chemical reactivity of…

Q: Carbenes (CR2) are neutral compounds with divalent carbon atoms.  Propose two different ways that…

A: Carbenes are neutral substances with just six valence electrons on the carbon atom. They are  highly…

Q: 8. Calculate the equilibrium constant, K, for the chemical reaction:2Az* + H₂O=Az₂O + 2H* (a)…

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

Q: Write the empirical formulas for the following compounds: te a. но - 19.08 орн-с-с-о-н I ор | || Н…

A: The empirical formula is defined as the smallest whole-number ratio of all the atoms present in the…

Q: What would be the rate constant for a first order reaction of 2H2O2 (l)→ 2H2O (l) + O2 (g) if the…

A: We need to calculate the rate constant for a first-order reaction. Here the concentration of the…

Q: Umbrium for the (The acidic protons are shown in red.) brier nation. O Reverse direction is favored…

A: In this question we have to predict the position of equilibrium in a reversible reaction.

Q: Based upon the structural formula shown... O What is the molecular formula? What is empirical…

A: Molecular formula indicate the exact number of atoms of each elements in the molecule.Empirical…

Q: The average lifespan of humans is approximately 60.0 yrs and the average times a heart beats is…

A:

Q: Gaseous butane (CH₂(CH₂), CH₂) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide…

A: Given that,butane reacts with gaseous oxygen to produce gaseous carbon dioxide and gaseous…

Q: What is the volume occupied by 0.108 mol of helium gas at a pressure of 0.909 atm and a temperature…

A: To find the volume occupied by a given amount of gas at a specific pressure and temperature, you can…

Q: Which of the following correctly places the metal centres in their order in the crystal field…

A: The magnitude of crystal field splitting energy depends on three factors:a) the charge on the metal…

Q: The chemical reaction shown was performed and the concentration of CCI, was measured over time.…

A: Rate of a reaction (average rate of a reaction) is expressed as the change in concentration of…

Q: A 1.00 L buffer solution is 0.150 M in weak organic acid HC₂H5O₂ and 0.250 M in LiC7H5O2. Calculate…

A:

Q: Consider acid base reaction shown below.   Assuming that pyridine and acetic acid are mixed in…

A:

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.