Lewis Base: -any substance that can donate an electron pair. true False

Q: A 106.2 mL sample of 0.100 M methylamine ( CH3NH2; Kb = 3.7 x 10-4) is titrated with 0.235 M HNO3.…

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Q: Multiply 21.5 x 3.149 and report the answer to correct sigfigs. 67.704 6.83 67.7 0 67 70

A: On multiplying 21.5 by 3.149, we get the answer 67.704 . According to significant rules of…

Q: B. Calculate the following information. USE THE FACTOR-LABEL METHOD TO DO YOUR CALCULATIONS!!! 1. A…

A: The density of a solution is calculated by the formula: Density=MassVolume   Note: Since you have…

Q: 13. The speed of a particular automobile is 45 mph (miles per hour). Use the following relationships…

A: In this question we have to convert the unit of speed.

Q: Raymond went to the grocery store with his mom. He started by pushing an empty grocery cart with 0…

A: At the starting of the shopping, the weight of the empty grocery cart is 0 kg. After shopping the…

Q: H. F— С-Н H-0-0-H H-C-H HICIF

A: For hydrogen bonding hydrogen should attached to electronegative atoms like nitrogen , oxygen…

Q: 16. Rifampin is dosed as 20 mg/kg/day divided into two doses. If the child weighs 55 pounds, what…

A: Rifampin is dosed as 20 mg/kg/day

Q: 1.) 1/10^4= 2.) (10^-2)(10^-3)= 3.) 10^-6/10^8= 4.) (10^4)^-4=

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Q: Convert 32.5% to parts per thousand (ppt).

A: ppt = 10 x percentage

Q: Which of the following depicts the most likely mechanistic pathway for the nucleophilic acyl…

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Q: 1. A friend claims that a metric ton is more than twice the mass of an English ton because a…

A: 1. A friend claims that a metric ton is more than twice the mass of an English ton because a…

Q: 11. What is the formula used for dilutions?

A: Dilution is a process of adding deionised water to decrease the concentration of given solution.

Q: Hello, I have a quick question where is the 60 mg come from on the bottom of the equation?Thank you.…

A: Answer: Sodium Bicarbonate is used as antacid which relieves acid indigestion, heartburn, sour…

Q: Determine the sum. (9.208 × 10-6) + (2.080 × 10–³) =

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Q: a physician orders kelfin 500 mg every 6 hours for your patient. Kelfin 1 gm/10mL is avaiable for…

A: Given : dose of medicine = 500 mg every 6 hours. Concentration of available medicine = 1 g/10 mL =…

Q: (2.08 x 105)(7.0 x 10-5) =

A: In this question, the multiplication result of the two numbers has to be determined. Let first…

Q: Chlorine OR Bromine OR Neither

A: Mass spectroscopy is an analytical technique used to measure mass to charge ratio of molecules…

Q: 5 x 10-8 kL= ? mL   be sure to show work and report correct number of sig figs and units

A: In a  measurement number of digits in value are known as significant figure,  all non zero values…

Q: A producer applies 560 lbs of 30-10-18 fertilizer to a 1 acre field. How many lbs. of P2O5 were…

A: We are given, 560 lbs of fertilizer (NPK) in proportion 30-10-18. lbs of P2O5 used = ?

Q: What steps do I take to convert 15.10 x 10-1 mm to m?

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

Q: A sphere has a diameter (d) of 25 mm. Find the volumè (V) cf sphere in mL. 4 (For sphere: V =tr³ and…

A: we have to apply this volume formula and take r=12.5 mm

Q: 2 moles HI

A: In the given reaction ether reacts with two moles of hydrogen iodide. The product of the reaction is…

Q: 7. A concentrated sulfuric acid solution is 65.0% H₂SO4 by mass and has a density of 1.55 g/mL at…

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Q: 2- Analytical chemistry : is a measurement science consists of a set powerful ideas and methods that…

A: Analytical chemistry is a branch of chemistry, used in the determination of chemical…

Q: PROVISIONAL LEWIS STRUCTURES T01/S01 For each provisional structure, identify if it is the correct…

A: Lewis structure represents the systematic arrangement of atoms around the central atom. Electrons in…

Q: Read the data points from the graph and complete the table below. 25 20 15 10 0. 3. Submit

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Q: 14. A scientist measures the masses of two chemicals. He then combines the chemi- cals and measures…

A: (14) As given in the question that A scientist added two chemical substances with fix masses , but…

Q: Cl: narge to e rmal charg Chec

A: Formal charge is the charge which is assigned of an atom  by considering that electrons are equally…

Q: This is my 2nd attempt to receive help with this problem. The previous expert confused me by saying…

A: According to the VSEPR theory, the geometry of the molecule depends on the number of bond pairs and…

Q: If 2.0 x 104 moles of S20- in 50 mL solution is consumed in 3 minutes and 17 seconds, what is the…

A: Rate of reaction is equal to the change in concentration of reactant or product with respect to…

Q: 0 КО к

A:

Q: bleach container costs $5.98 and it has a volume of 2.4 ml what is the cost per gallon? The density…

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Q: tv + Cl₂ Heat.

A:

Q: 16. A physician orders that a child should be given potassium chloride milliequivalents per kilogram…

A: A physician orders that a child should be given potassium chloride (KCl) 1.6 milliequivalents per…

Q: Use the following information to answer questions 31 and 32. equilibrium Salicylic acid is a plant…

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Q: 100 - 15 = 85 not 75

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Q: I Review Constants Periodic Table Suppose that you want to find the equation for a line that passes…

A: In the first part we have given two points (0,3) and (4,9) through which the line passes and we have…

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.