What is the pH of a solution containing 0.1M ephedrine & 0.01 M of ephedrine HCl? The pKb of ephedrine is 4.64

Q: 1. Find the Molar Mass of the compound Mg3(PO3)2. Use the rounded data below: Atomic Mass Data:…

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Q: 1) Give oxidation numbers for the underlined element in each of the following molecules or ions. (a)…

A: Since you have asked multiple type questions, we will solve only first  questions for you. If you…

Q: can you show this example with better steps and replace the edge length with 0.481nm, density…

A: First we need to calculate the number of atoms to check the possibile crystal structure.  Then we…

Q: Which is expected to have the largest dispersion forces? ON₂H4 CH16 O CaHa 0 H2

A: Dispersion force is the weak intermolecular force. When two molecules come closer there operate such…

Q: Use the reaction quotient to predict whether a precipitate will form. If 18.0 mL of 2.61×10-4 M…

A: Reaction quotient is based on the initial concentrations. Reaction quotient is used to predict…

Q: There are only two naturally-occuring stable isotopes of boron. The mass and natural abundance of…

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Q: An aqueous solution of 4.62 M potassium bromide, KBr, has a density of 1.37 g/mL. %. The percent by…

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Q: protein catalyzes the following reaction and had a Michaelis-Menten constant of  Km=25 mM and a…

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Q: A 10.9 g sample of an aqueous solution of nitric acid contains an unknown amount of the acid. If…

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Q: Give the chemical symbol for the element with the ground-state electron configuration [Ne]3s²3p².…

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Q: What is the "common" name for the compound that has the IUPAC name of sodium 3-chlorobutanoate

A: IUPAC name = sodium 3-chlorobutanoate

Q: Write the balanced COMPLETE ionic equation for the reaction when aqueous CS3PO4 and aqueous AgNO3…

A: Given : reactants and products

Q: Copper(1) ions in aqueous solution react with NH, (aq) according to Cu (aq) + 2NH3(aq) - Cu(NH3)+…

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Q: Calculate the molar enthalpy change for two reactions and use Hess’s law to determine the enthalpy…

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Q: Draw a resonance structure that places a pi bond in a different position. Include all lone pairs in…

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Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A: Empirical formula: it can be defined as the simplest whole number ratio of different atoms in the…

Q: That answer is incorrect. Is there another possible solution? Preferably in a cyclopentane shape

A: We have to give the major product of the given reaction. Concept: In the presence of KMnO4, HO-,…

Q: P19.31 The spacing between lines in the pure rotational spectrum of ¹¹B²D is 3.9214 × 10¹¹ s¹.…

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Q: Give the relative rates of disappearance of reactants and formation of products for each of the…

A: When write the rate law of the expression, consider that rate of disappearance written with negative…

Q: Given: IO31- + 6 H1+ + 6 S2O32- --> 3 S4O62- + I1- + 3 H2O If 13.98 mL of 0.184 M S2O32- Are…

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Q: how to determine net charge of amino acid, given pH and pKa values?

A: The formula of getting net charge is positive charge - negative charge . If pH and pKa  values are…

Q: Determine the number of IR-active modes and the number of Raman active modes for SeF4. Show complete…

A: Point group of SeF4 is C2v Character Table for C2v :               E C2 (z) σv (xz) σv (yz)…

Q: From the following generalized reaction and associated experimental data, determine the rate…

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Q: Write the electron configuration of the following elements and illustrate the orbitals: 1. C 2. Pm…

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Q: 4. Can you confidently determine if your molarities are precise? Explain why or why not.

A: Tere is a huge difference between accuracy and precise.

Q: What is the Miller Index of the plane shown in the cubic unit cell below?

A: Given : intercepts at axes.

Q: Identify the following compounds. aromatic ? anti aromatic? non aromatic? Explain the answers for…

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Q: Ph ОН Target ОН from Br ОН

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Q: Rank the following solutions in order of decreasing [H3O+].

A: Given : acids and their concentration. Tip: [H3O+] is directly proportional to acidic strength

Q: Heliox is a mixture of helium and oxygen gas used to help patients with breathing difficulties. It…

A: we have to calculate the partial pressure of He

Q: consider the following t (min) 0.00 20.0 40.0 60.0 80.0 kinetic data for a certain reactic [A], (M)…

A: First we have find out  the order of reaction using the data given. We have plotted [At] Vs time,…

Q: مان A₂B(g) +B(g) =A₂B₂ (g) 1 c = 16-4 2 Ag+ 2B (g) = A ₂ B₂ (g) kc = 28.2 Fc for the reactio 6 A (g)…

A: here we are required to find the equilibrium constant for the given reaction.

Q: A solution is made by mixing 9.0 mL of 0.13 M Pb(NO3)2 and 11.0 mL of 0.0012 M  Na2SO4. What is Qsp…

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Q: Task 2. Order of reaction Direction: Answer the following questions. Show your solutions. A. Initial…

A: Answer: Power of concentration term of a reactant in the rate law is the order of reaction with…

Q: H NH2 NaBH3CN pH 5.5, ethanol -CH3 Br₂ / light

A: We have complete both the reaction. Introduction:  In the first reaction, initially amine react…

Q: CI CI

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Q: Exercise 2. Determine the half-life of an element If you start with 128 parent atoms of a…

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Q: How many possible stereoisomers does menthol have?

A: The structure of menthol is as follows:

Q: You need to make an aqueous solution of 0.171 M zinc nitrate for an experiment in lab, using a 300…

A: Given data :  1. Molarity of sodium fluoride= 0.216 M  2. Mass of salt = 14.3 g  To calculate :…

Q: Structures of Molecular Compounds Formula H₂O SF₂ NI3 Report Table B.3: Molecular Compound…

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Q: When a 17.3 mL sample of a 0.439 M aqueous hypochlorous acid solution is titrated with a 0.388 M…

A: #Q.1: Hypochlorous acid, HOCl is a monoprotic weak acid with pKa = 7.53 sodium hydroxide, NaOH is a…

Q: Nitrogen gas reacts with hydrogen gas to produce ammonia via the following reaction:…

A: Given : N2 + 3H2 ------> 2NH3

Q: Complete the balanced chemical reaction for the following weak base with a strong acid. In this…

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Q: Predict the products (if any) that will be formed by the reaction below. If no reaction occurs,…

A: Given reaction : a.)  2 HClO4 (aq) + Co(s) → b.)  Pt(s) + HBr(aq) →

Q: Calculate the velocity of a neutron travelling with a kinetic energy of 1.30×10−18 joules

A: we have to calculate the velocity of neutron  Given,  Kinetic energy = 1.30×10−18 joules

Q: The Ksp of metal hydroxide, Ni(OH)2, is 5.48 x 10−16. Calculate the solubility of this compound in…

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Q: 1) (a)Name and describe the three mechanisms by which ligand exchange reactions can occur at a metal…

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Q: How many grams of each substance are required to make the indicated solution? NaCl in 500 g of a…

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Q: Scroll Down to see all questions Perform the following fundamental calculations using the formulas,…

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Q: A gas mixture contains 23.8 mmHG of water vapor and hydrogen gas. Use Dalton’s law to calculate the…

A: We will solve this question using dalton law of partial pressure.

Environmental Pollution

Environmental pollution occurs due to some unwanted alteration in the surroundings which results in unfavorable effects on all organisms of that surrounding.