What volume of carbon dioxide at STP will be produced when 2.66 mol of HF are reacted with an excess amount of sodium carbonate? Na₂CO3(aq) + 2 HF (aq) → H₂O (e) + CO₂(g) + 2 NaF (aq) Enter a number only (no units) with 3 significant figures.

Q: Determine the [OH-] in a solution with a pH of 6.008.  Your answer should contain 3 significant…

A: Given:  pH = 6.008  Formula used :  pOH  + pH = 14  Or pOH = 14 - pH  pOH = -log[OH-]  We'll…

Q: What will be the appropriate reagents in the following reactions? reagent A reagent B reagent C Br…

A: Given reaction is multi step synthesis.  In first three reactions halogenation take place. An last…

Q: Question 3 What is the BEST single supplement to take, no matter what your health goals? protein…

A: i) Multivitamins: Multivitamins can help to fill any nutritional gap in your diet and can actually…

Q: CL ALC) 3 0°C

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Q: range the following electron transitions 6 -> 2, 5 -> 2,  4 -> 2, and 3 -> 2: shortest wavelength…

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Q: What is the concentration of 598.8 mL of solution that contains 23.9 g of KCl?

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Q: The pOH of an aqueous solution of 0.559 M hypochlorous acid, (K₂ (HCIO) = 3.5 × 10-8) is Submit…

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Q: Aluminum hydroxide (Al(OH)3 is sparingly soluble in water.               The Ksp value at 25°C is…

A: 1.  Solubility product (ksp) of a sparingly soluble salt is defined as the product of the molar…

Q: ܂ 1. LDA 2. ܘ CI

A: LDA is a strong base. It removes the H atom from the α-carbon of carbonyl group to make Lithium…

Q: a) b) OIIIII... c) Oll

A: IUPAC rules for naming epoxides: Three membered oxirane is taken as parent. The substituents are…

Q: For each of the following sets of quantum numbers, determine how many electrons in a single atom…

A: -> number of electrons in n = n2 ->Azimuthal quantum number (l) = 0 -> s l = 1-> p l = 2…

Q: At 298 K, the following reaction occurs 2 Fe³+ (aq) + Hg₂²+ (aq) = 2 Fe²+ (aq) + 2 Hg²+ (aq) a. What…

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Q: Chemistry: Fundamentals and Principles Davidson F Calculate the mass percent of solute in each…

A: Mass Percent = Mass of Solute/Mass of Solution × 100%

Q: compound CuBr BaCO₂ KC1 Does solubility change with pH? Oyes Ο Ο no yes no yes no pH = 5 highest…

A: Since we know that if any compound generates any strong acid or basic ion then pH depends upon…

Q: Which of the resonance structures below is least significant? O .. :0: structure C structure A…

A: The least stable resonating structure is least significant

Q: Example: The balloon that Charles used for his initial flight in 1783 was destroyed, but we can…

A: At constant pressure, the volume of an ideal gas is directly proportional to its temperature V = kT…

Q: Calculate the pH of a solution that contains the following analytical concentrations: a. 0.0630 M in…

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Q: hat is the energy of one mole of red light with a wavelength of 680 nm?

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Q: Based on the diagram shown, click the buttons below to write out the complete electron configuration…

A: Electronic configuration is the distribution of electrons of an atom or molecule in atomic or…

Q: A sample of gas contains 0.1800 mol of H₂(g) and 0.1800 mol of O₂(g) and occupies a volume of 15.8…

A: To solve this question, we need to use the Avogadro's law in which temperature and pressure remains…

Q: A sample of nitrogen has a volume of 4.14L at 1986 mmHg and 128 degrees Celsius. What volume will it…

A: Ideal gas law equation is the equation which obeys gas laws under all condition of temperature and…

Q: A 43.8 g sample of ground water is found to have a lead concentration of 13.31 ppm. Calculate the…

A:

Q: Choose the name of each of the following molecular structures. a. b. C. d. e. Molecular structure…

A: Answer:-  Compound a =  bent  B= seesaw C= trigonal pyramidal D=  trigonal Bipyramidal E=…

Q: 1. Describe the following reactions of amines, include equations if possible a. Hinsberg reaction…

A: Hinsberg test is used to distinguish between primary secondary and tertiary amines.. Aromatic amine…

Q: Which of the following compounds is a secondary alcohol? O CH3 -CH-O-CH3 C H3 0 CH3-O-H O CH3 -…

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Q: From the shape of your graph, do you deduce/conclude that (circle your chole a) the rate constant…

A: According to Arrhenius equation, k = Ae-Ea/RT ln k =ln A -EaRT A plot of ln k versus 1/T gives a…

Q: How many milliliters of a 0.900% (m/v) normal saline solution can be prepared from 2.00 g of sodium…

A: 0.900 % (m/v) means that 0.900 g of NaCl is present in 100 mL of the normal saline solution.

Q: Isopropyl alcohol is mixed with water to produce a 34.0% (v/v) alcohol solution. How many…

A: The volume percent of isopropyl alcohol = 34.0 % (v/v) Total volume of the solution = 735 mL

Q: to The maximum contaminant level of lead (Pb) in drinking water as set by the the Environmental…

A: We need to use the formula of pom concentration to convert the given concentration to ppm .

Q: aining Time: 1 hour, 59 minutes, 51 seconds. Lestion Completion Status: Moving to another question…

A: We have been asked what is the name of disaccharide that is not a reducing sugar.When two…

Q: Which of these is irreversible and why? Match the items in the left column to the appropriate blanks…

A: Chemical bonds are the binding forces that bind the atoms or groups of atoms in a chemical species…

Q: If an atom lies 3.48 x 10-19 J above the ground state, determine the wavelength of light (in nm)…

A: Given -> Energy= E = 3.48 × 10-19 Joule

Q: 1. Two identical containers of the same amount and type of ideal gas follow different processes from…

A: The following points can be obtained from the given information: The gas used in both processes is…

Q: Which reaction correctly shows how hydroquinone inhibits radical propagation? HO НО HO OH OH OH +…

A: CH3 radical abstracts proton from OH to produce radical. Another OH proton is abstracted in similar…

Q: Determine the pH of a solution with [OH-] = 7.43 × 10-5 M. Your answer should contain 3 decimal…

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Q: d Question 5 An iron bar of mass 544 g cools from 94.0°C to 5.0°C. Calculate the metal's heat change…

A: Specific heat for iron = 0.450 j/g°c Q= m× c×∆T

Q: If the volume of wet gas collected over water is 80.0 mL at 20 ∘C and 760 mmHg , what is the volume…

A: Given data The vapor pressure of water at 20 ∘C is 17.5 mmHg  volume of wet gas collected over…

Q: Calculate the concentration of metal ions, M³+, in a solution that initially contains 0.20 M M(NO3)3…

A: Formation reaction [M(CN)6]3- M3+ + 6CN- <--> [M(CN)6]3-

Q: Home Work: How many molecules are contained in 25.0 g H₂.

A: In the multiple questions, we solve only first question according to the Bartleby guidelines. First…

Q: Question 7 A 25.0mL expandable container of nitrogen was placed in a pressurized furnace at 4.0atm.…

A: At constant pressure,  Volume is directly proportional to temperature.

Q: Using diagrams where appropriate, explain how the forces between particles in the atom account for:…

A: Answer:- in an atom there is electrostatic attraction force between proton and the electrones..

Q: What is the sign of 45 of the system for each of the following changes? Select+ for positive, for…

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Q: What is the name of this compound? -P -0 H H OH H H N NH₂ Me www N

A: We have to name the given compound

Q: States 1 and 2 have calculated entropy x and y, respectively. If the process 1 to 2 is spontaneous…

A: Entropy is often defined as a measure of the disorder of a system.

Q: Three gases (8.00 g of methane, CH4, 18.0 g of ethane, C₂H6, and an unknown amount of propane, C3H8)…

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Q: IV. Place the following molecules (or ions) in order of increasing CO bond length: CO, CO₂, CO3-²

A: Bond length is defined as the average distance between nuclei of two bonded atoms in a molecule.…

Q: NOTE: If more than one bond angle is possible, separate each with a space. For example, trigonal…

A: Answer:- This question is answered by using the simple concept of writing the hydridisation of the…

Q: Sodium hydroxide is extremely soluble in water. At a certain temperature, a saturated solution…

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Q: a) For the three Lewis structures shown below, determine the formal charge of each of the three…

A: Formal charge  ---> number of valence electron in neutral atom or element —number of valence…

Q: The pH of an aqueous solution of 0.0566 M potassium cyanide, KCN, is . (Assume that Ka (HCN) = 4.00…

A:

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.