A sample of bromine has a mass of 40.8 grams. a. How many Br atoms are there in the sample? atoms b. How many Br2 molecules are there in the sample? molecules Submit Answer Retry Entire Group 9 more group attempts remaining if needed for this

Q: Part C Determine the pH for [H3O+] = 5.9 x 10-2 M solution. Express your answer using two decimal…

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Q: 13 11 9 7 5 3 1 0 Titration of 10.0mL of an unknown diprotic acid with 1.00M NaOH. 5 pH = 4.01 15…

A: Observe the graph

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A: To synthesize this compound using wittig reaction now we have find out the alkyl halide starting…

Q: 1. Fifty grams of Xenon (AW = 131.293 g/mol) undergoes a reversible isothermal expansion from 1.00…

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Q: Identify the subshell in which electrons with the following quantum numbers are found (a) n = 2, l…

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Q: Write the net ionic equation for the reaction between Na₂SO4 (aq) and Pb(NO3)₂ (aq). Be sure to…

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Q: Identify whether each species functions as a Brønsted-Lowry acid or a Brønsted-Lowry base in this…

A: Since, From the definition, Brønsted-Lowry acid are proton donar and Brønsted-Lowry base are proton…

Q: Balance the following redox reactions in basic solution CH,CHO(I) + Cu(s) CH₂COO (aq) + Cu₂O(s)…

A: According to the bartleby guidelines for the multipart questions I can solve only first three…

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Q: Consider the titration of a 60.0 mL of 0.321 M weak acid HA (Ka = 4.2 x 10⁻⁶) with 0.400 M KOH. 1.…

A: Since HA is a weak acid, hence it will dissociate into its conjugate base and hydrogen ion. Since…

Q: Calculate AH°298, AS 298, and AG 298 for the combustion of 1 mole of nonane, C9H20 (MW = 128.2…

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Q: How come I2 has a 0 reaction order while acetone and HCL are 1?

A: As the first half of the question doesn't specify whose literature value is to be mentioned, we will…

Q: Identify whether each species functions as a Brønsted-Lowry acid or a Brønsted-Lowry base in this…

A: Since, Bronsted- Lowry acid are proton donar and Brosted- Lowry base are proton accepter. Thus,

Q: Which isotope, when bombarded with bismuth-209, would yield two neutrons and an isotope with atomic…

A: Isotopes are two or more atom types that have a differing number of neutrons in their nuclei despite…

Q: * The following information I atm: at Tb= 100.00 °C Tm= 0.00 °C is given for water A Hvap (100,00…

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Q: How many stereoisomers are possible for a) 1,2-dibromocyclopentane?

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Q: A gas sample has a new volume of 4.53 L after the pressure was decreased from 6.3 atm to 1.42 atm at…

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Q: In an aqueous solution at 25°C, if [H₃O⁺] = 1.4 × 10⁻⁴ M, then [OH⁻] is:

A: The concentration of OH- can be calculated as:

Q: QUESTION 42 What is the molarity of MgCl 2 in 325 mL of solution that contains 15.6g MgCl 2?…

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Q: What have you noticed with the transportation of nutrients and other molecules to and from other…

A: We need to analyse the transportation of nutrients and other molecules to and from other parts of…

Q: Question 2: For the following compounds 1. Place an asterisk (*) beside each chiral center 2.…

A: -> Chiral center is carbon center which contains all four different groups. -> A chiral…

Q: Draw a Lewis diagram for the carboxylic acid  HCOOH

A: Formic acid have one carbon atom which is a part of carboxylic acid group

Q: TRANSCRIBE THE FOLOWING TEXT IN DIGITAL FORMAT   Indicate the Pros and cons of the separation of…

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Q: When 1 mole of 12(g) reacts with Cl₂(g) to form ICI(g) according to the following equation, 26.8 kJ…

A: Recall the given equation,                                I2 g  +  Cl2 g  →  2 ICl gWhen 1 mole of…

Q: 12. Use the Bom-Haber cycle to calculate the lattice energy of CaCk () given the following data:…

A: 12. We have to calculate the lattice energy of CaCl2 (s) using the Born-Haber cycles. Given datas…

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Q: Consider a sample of water and air in a container. Which of the following changes will increase the…

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Q: Question 1. Predict the dominant reaction mechanisms and product distributions for the reactions…

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Q: Calculate the volume of 70% Isopropyl alcohol needed to prepare 50.00 mL of 5.0%, 18.0%, and 28.0%…

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Q: What is the pH of solution when 19.7 mL of strong base having molarity 0.00269 M is mixed with an…

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Q: Question 4: Is the molecule shown below chiral or achiral? OH 4: OH Is the molecule shown below…

A: If a molecule contain a plane of symmetry then molecule is called achiral.  An asymmetric carbon…

Q: Balance the following redox reaction in acidic solution using the half reactions method. CuS (s) +…

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Q: Which best describes the conversion shown here? A) trans to gauche B) cis to gauche Br Br

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

A: Strong acid + strong base = neutral salt Strong acid + weak base= acidic salt  Weak acid+ strong…

Q: In the laboratory, a student dilutes 29.1 mL of a 9.35 M hydrobromic acid solution to a total volume…

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Q: The percent concentration of a solution is a ratio of the amounts of dissolved solute and solution,…

A: % concentration= (amount of solute x 100/amount of solution)

Q: mplete the table below, using the diagram of an atom shown at right. name symbol 000 0 0 0…

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Q: Hydrogen gas can be produced in the laboratory through the reaction of magnesium metal with…

A: Given: Mass of Mg = 30.0 g Pressure of H2 = 780 mmHg Temperature = 26oC Molar mass of Mg = 24 g/mol

Q: What is the pH if you mix 250 ml of 3M HCl with 550 ml of 1.5M HS-?

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Q: Complete and balance the following equation: Ca(OH)₂(aq) + H₂PO₂(aq)-0 ローロ Ś

A: Recall the given equation,                               CaOH2 aq  +  H3PO4 aq  →We have to…

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Q: 2. Calculate the degree of sp-hybridization for a C atom in the following molecules/materials: a)…

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Q: A scuba diver 40 ft below the ocean surface inhales 80.0 mL of compressed air from a scuba tank at a…

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Q: Match the following substitution reactions to their products. xa CI "HAN. Br Off NaOCH3 NaCN KSCH,…

A: We have to match the following equation. Introduction: SN1 and SN2 reaction.

Q: A solution has a pH of 3.4, what is [H*]? 2.51 x 10-11 M 3.4 M 3.98 x 10-4 M 07M

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Q: What is AG for the following reaction? (F= 96,500 C.mol-¹) 12(s) + 2Br (aq) 21 (aq) + Br2(0) Given:…

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Q: A sample of gas has a volume of 595 mL at a pressure of 3.28 atm. The gas is compressed and now has…

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Q: Question 1 » Listen An atom has the following electron configuration: 1s² 2s²2p¹ Assuming the Aufbau…

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Q: So which way do you write it? Like this or this? Also, what is the name of the structure.

A: To show possible structure  but it is not matched with NMR of proton because lack of OCH3 peak and…

Q: In the above reaction, the oxidation state of zinc changes from How many electrons are transferred…

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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.