A diver exhales a bubble with a volume of 150 mL at a pressure of 3.75 atm and a temperature of 260 K. What is the pressure of the bubble when it reaches the surface where the volume is 550 mL and the temperature is 300 K?

Q: What is the name of the organic product obtained in the reaction below? CH3- i. -C-H+NaBH4 CH₂OH ?

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Q: 19. What is a buffer? How can buffers be used? Why are they important? Explain your ideas and…

A: A buffer solution is designed to maintain constant pH in an aqueous solution and has many…

Q: 3. The Hammett p value for migrating aryl groups in the acid- catalysed Beckmann rearrangement is…

A: Beckmann rearrangement is the acid-catalyzed rearrangement of ketoximes to -substituted amides where…

Q: A solution is prepared with 1.0×10 -2 M NaCl, 2.0×10-2 M CaCl 2, 1.0×10-3 M NaHCO3 and 5.0×10-4 M…

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Q: 2. For the molecules below: 1) convert the line structure into a Lewis structure, then 2) draw…

A: Lewis structure is a structure of a molecule where octet rule of all the atoms is satisfied that is…

Q: In a titration of 16.0 mL of a .425 M solution of a diprotic acid H2C4H4O6 (tartaric acid) with .155…

A: Tartaric acid (H2C4H4O6) is a diprotic acid, which means it can donate two protons (H+) per…

Q: Which of the following would be the major product of this reaction? Ph H3C H3C CI Et H NaOH Ph Ph ||…

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Q: What is the hybridization of the N atom in the following molecule? ㅁ N sp OS O sp³ O sp4 sp²

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Q: Within the electromagnetic spectrum, which of the following has the lowest frequency? Infrared…

A: The relationship between energy and frequency within the electromagnetic spectrum,   ... (1)Here, E…

Q: ou have a solution of leucine at 0.1 gram in 100 ml. Give (a) the molar concentrations and (b) the…

A: Given Data:Mass of leucine =0.1 gVolume of solution = 100 mL= 100 x 10-3 LLeucine is an amino acid…

Q: Which of the following compounds is the strongest Bronsted acid? H₂CI+ Or SiH4

A: The Bronsted-Lowry acid-base theory states that the acid is a substance that gives H+ ions and the…

Q: Convert the masses from grams to the indicated derived units.   0.669g = 669mg (answered) 221g = Mg…

A: Dimensional analysis is used to convert a physical quantity given in one type of unit to some other…

Q: Predicting the relative lattice energy of binary ionic compounds In each row, pick the compound with…

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Q: Cis and Trans isomers are constitutional the location of a C = C bond. true or false? isomers that…

A: The cis-trans isomerization is a type of stereoisomerism. The molecule which contains a double bond…

Q: 5. What would be the concentration of barbituric acid (HC4H3N203) in a 1.0M solution of sodium…

A: Detail

Q: 1. Draw the three physical states of matter ( Solid, Liquid, Gas ) illustrate their behavior &…

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Q: when licl is dissolved in water is the solution acidic, basic, or neutral?

A: Given,The salt:    LiCl

Q: Select the true statement about the carbocation shown. ex The carbocation would not rearrange The…

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Q: 6 12.01 1 Surface of water. 1.008 8 16.00 7 14.01 From the atoms above, draw the THREE (3) types of…

A: Polar covalent bond is when atoms with different electron

Q: Award cis/trans-, E/Z-, R/S- and/or M/P-descriptor(s) to each of the following compounds: CI

A: Given a chiral molecule.Determine its absolute configuration

Q: How much 40% solution is needed to make 500 mL of a 5% solution?

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Q: 1a. Draw the condensed structural formula for 1-propanamine.  1b. Draw the line-angle formula for…

A: Condensed structural formula is the formula which gives information about exact arrangement of atoms…

Q: 1. Describe how geometric isomers are different from structural isomers. 2. Why is it possible for…

A: Structural isomers are constitutional isomers having same molecular formula but different Structural…

Q: The Blue Giant of the Orient is the largest faceted sapphire in the world, with a mass of 486.52…

A: Density : Density is defined as the mass of a substance per unit volume.…

Q: What is the solubility of benzoic acid in water at 10 degrees celcius?

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Q: You're throwing a pizza party for 15 and figure each person will eat 4 slices how much is the pizza…

A: If we are provide the price of 1 orange, we can calculate the price of 5 oranges by…

Q: Can the target compound at right be efficiently synthesized from the starting material at left?…

A: Bromination is an electrophilic addition of bromine atoms across the double bond of an alkene to…

Q: Allenes are a class of compounds that have two adjacent double bonds. The simplest allene…

A: We have been given an allene and we have been asked to predict hybridisations of two carbon atoms…

Q: A solution contains 4.90 moles of water, 1.05 moles of sucrose (C12H22O11), and 1.40 moles of…

A: The mole fraction of a component in the mixture is defined as the ratio of moles of that substance…

Q: Write the complete ionic equation and net ionic equation for calcium carbonate and sulfuric acid.…

A: we have to write the complete ionic equation and net ionic equation, identify the weak and strong…

Q: Arrange the ions from largest to smallest. Mo6+ Br Rb+ Se²- Largest ionic radius Smallest ionic…

A: The ions given are,Mo6+, Br-, Rb+, Se2- and  Y3+Mo6+…

Q: What is the formula of silicon tetrafluoride? SiF4 SiF SiF 3 Si₂F4 Si4F

A: As we know the silicon is of carbon family and it can form four bonds so the name silicon…

Q: Describe the preparation of 2.00 L of 0.200 M glycine buffer, pH 9.1, from glycine and 1.00 M NaOH .…

A: Glycine is an amphoteric amino acid with ionizable COOH and NH2 groups.It has the structure…

Q: #q The vapor pressure of liquid NH, is 448.7 mmHg at a temperature of 229.5 K. The enthalpy of…

A: Vapour pressure (P) Temperature (T) P1 = 448.7 mmHgT1 = 229.5 KP2 = ?T2 = 231.8 KEnthalpy of…

Q: Using the Henderson-Hasselbalch Equation calculate the pH of a buffer that contains 0.11 M Acetic…

A: The solution that resists the change in pH is known as a buffer solution. The buffer solution is an…

Q: In a pure sample of HF, what forces of attraction exist between the molecules? A) dispersion forces…

A: The molecules having permenant dipole moment due to electronegativity differences, attract each…

Q: An aqueous solution of 10.02 g of catalase, an enzyme found in the liver, has a volume of 1.02 L at…

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Q: Draw the Lewis structure (including all lone pair electrons).

A: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a simplified…

Q: A certain person had a brain that weighed 1.35 kg and contained 2.65 x 10¹0 cells. Assuming that…

A: The length of one side of the cell can be calculated from the volume of one cell.To determine volume…

Q: How many grams of SO₂Cl₂ are needed to produce 150 g of HCI? (MM of SO₂Cl₂ = 135 g/mol; MM of HCI =…

A: How many grams of SO2Cl2 needed to produce 150 g. of HCl.Molar mass of SO2Cl2= 135 g/mol.Molar mass…

Q: a NH₂ O b NH₂

A: The species which donates H+ is called as a acid  The species which accepts H+ is called as a base.

Q: You are given a solution wherein [OH^-] is 1/4th of the concentration of [H^+]. What is the pH of…

A: Question 1Given:  To determine: pH of the solutionQuestion 2Given buffer A: a 250 mM solution of…

Q: What is the molecular formula of a compound of empirical formula CH2 and formula weight 14 amu? CH₂…

A: This problem is based on mole concept.Here the emperical formula is given as CH2. The formula mass…

Q: H H H 2 Does this mechanism describe an acid/base reaction? Note for advanced students: we mean only…

A: Acid-base reaction is the one which occurs between an acid and a base.Aldehydes act as acid because…

Q: Suppose a biochemist has 10 mL of a 1.0 M solution of a compound with two ionizable groups at a pH…

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Q: Compare the reactivity of BF3 vs BBr3. What happens if to one equivalent of these compounds you add…

A: Both BF3 and BBr3 are lewis acids, because Boron is sp2 hybridized and has one unhybridized vacant p…

Q: For a chemical reaction, given ∆H∘ 0. Which of the following statements is true?   Group of answer…

A: Given Condition: ∆H∘ < 0 and ∆S∘ > 0ΔH: Enthalpy change (heat change) of the reaction.ΔS:…

Q: Assign all partial charges to this molecule and show how it would interact with 4 different water…

A: A question on hydrogen bonding. The structure of an amino acid is given whose interaction with water…

Q: The number of particles in one mole of a substance is equal to what? Select all that apply.…

A: The number of molecules or atoms present in the one mole of the substance is equal to Avogadro's…

Q: 18oz to g 18oz=____ g

A: Answer:This is a question based on conversion of units where we have to convert the given physical…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.