log 100 (try without a calculator!)

Q: p.101edu.co Question 27 of 30 What amount of heat (in kJ) is required to convert 27.5 g of an…

A: Given Mass of unknown solid = 27.5 g T1 = -5°C T2 = 52.3°C

Q: How many kinds of chemically non-equivalent hydrogens are there in each of the following compounds?…

A: It is asked to write the no of chemically non equivalent hydrogens in the above question.One…

Q: Initiation: Propagation: Termination:

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Q: d) C4H6 e) C4H8Br2

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Q: K[Cr(C2O4)2(H2O)] 2H2O what is the complex ion, the coordination number, the geometry? and would you…

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Q: In europe, gasoline efficiency is measured in km/l. If your cars gas mileage is 27.0 mi/gal, how…

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Q: 2. (a) How can Limonene be prepar from 1-(4-methylcyclohex-3-enyl) ethanone and triphenylphosphine…

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Q: What does it mean if the color of the solution in UV flashlight are the following    Sample 1-…

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Q: Chemistry To make a buffer that is 0.35 M EDTA and 0.1 M NaCl, calculate the amount of EDTA (F.W.…

A: The molarity of EDTA (F.W = 372.2 g/mol) in the buffer = 0.35 M or 0.35 mol/L Molarity of NaCl (F.W…

Q: A titration experiment is set up where 87.97 mL of 0.8704 M hypochlorous acid, HClO, is titrated…

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Q: An experiment is performed to determine if pennies are made of pure copper. The mass of 11 pennies…

A: The density of any substance is the ratio of the mass of that substance to the volume of that…

Q: Exp No. 1 2 3 Br₂ + H₂ [Br₂] (molecules/cm³) The reaction is.... 1.00E18 4.00E18 4.00E18 zero order…

A: Reaction given:- Br2 + H2 => 2HBr •We have to find out oreder of reaction regarding Br2 and H2.…

Q: In each problem the DNA Triplet code is given. Determine the mRNA codon using base pairing and…

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Q: Three perfect gases, all at a temperature of 25°C, are placed into a box with sides of length 1m,…

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Q: Drag the labels to the correct position to indicate the contents in each of the separating funnel…

A: Introduction :  The separating funnel runs on the concept of "like dissolves like", with different…

Q: Four liquids are described in the table below. Use the second column of the table to explain the…

A: The formula to find the freezing point depression, ∆Tf of a solution is:  ∆Tf = i * Kf * m  where i…

Q: A tiny sample of gold contains  1.5 x 10^16 atoms. The mass of the gold sample is ______  μg.

A: Given the number of gold atoms, the tiny sample contains = 1.5*1016 atoms We have to find the mass…

Q: A weak acid (pka = 6.3) is dissolved in solution with a final pH = 5.7. At this pH, some of the acid…

A: Given the pKa of the weak acid(HA), pKa = 6.3  pH of the buffer solution, pH = 5.7

Q: Hydrogen atoms have 1 electron and a mass of 1. How many protons are in hydrogen atoms? When…

A: In a neutral atom, the number of electrons and protons is the same. Hence, we can say that: Number…

Q: There are three sets of sketches below, showing the same pure molecular compound (carbon monoxide,…

A: A question based on matter that is to be accomplished.

Q: The cyanate ion, CON−, forms many stable salts, but many fulminates, CNO−, are explosive, why?

A: Cyanate ion is  NCO-, where the central atom is C.  Fulminte ion is CNO-, where the central atom is…

Q: 1. Determine the concentration as a percentage by volume if a 600. mL bottle of vinegar contains…

A: Given: Volume of bottle = 600 mL Volume of acetic acid = 30.0 mL

Q: Name covalent compounds. Name or write the formula for the following covalent compounds. (a) Write…

A: Systematic names are  part of nomenclature of compounds,  a systematic name is  given in a…

Q: Complete the Chart-fill in the name or draw the structure of the functional group 9. 10 R I-R", R'…

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Q: the table for characteristics of acids and bases er color change Acids Base

A: pH scale helps us to determin acidity or basicity of a solution.pH equal to 7 means solution is…

Q: Draw the intermolecular forces that present between the molecules A and B. A B CH3CHC-O-CH2 CH3 1…

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Q: Some measurements of the initial rate of a certain reaction are given in the table below. [N₂] [H₂]…

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Q: Which element, sodium or magnesium, must have an electron affinity closer to zero? State your…

A: Which element, sodium or magnesium, must have an electron affinity closer to zero?

Q: Here are sketches of four electron orbitals: A 00 B 8 00 D

A: Solutions- Here are the four electron orbitals.

Q: 3. Give the electron configuration using the crystal field theory of the following complexes and…

A: Electronic configuration is arrangement of electrons in orbitals of an atom.in a compound or a…

Q: QUESTION 2 Which of the following elements is a transition metal? Periodic table A. tin

A: The properties of transition metals vary from s block elements to p block elements.

Q: pH is best described as the concentration of which body fluid ions?

A: Given, pH is best described as the concentration of which body fluid ions = ? Note: Alkalinity and…

Q: How to convert grams to millimetres? And grams to centimetres?

A: Gram is a unit of measurement of weight. Centimeter and millimeter are unit of measurement of…

Q: 3. Calcium chloride (CaCl2) has a formula mass of 110.98 g/mol. A 1.00-g sample of NaCl (FM…

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Q: (12.1 mL)(1.0076 g/mL) -1.05 g.

A: Significant figures of a number in positional notation are digits in the number that are reliable…

Q: What are the differences between endocrine and exocrine glands?

A: Endocrine glands - The organs that makes hormones that are released directly into the blood and…

Q: What is scientific notation of 0.65784125?   Explain thanks

A: Scientific notation: Scientific notation is a way of expressing numbers in decimal form with…

Q: Decide whether the Lewis structure proposed for each molecule is reasonable or not. molecule BeH₂ OF…

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Q: All carbons of monosaccharide should have at least one hydroxyl group. True or False?

A: Monosaccharides are called as polyhydroxy aldehydes or ketones i.e. monosaccharides are molecules…

Q: A certain analytical method for the determination of lead yields masses for lead that are low by 0.5…

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Q: A patient is to be given 4.6 mg of a heart medication in exactly 260 mL of D5W (dextrose solution)…

A: Volumetric measurements

Q: Which of the elements go into complete addition solution (space positions or interstitial) with Ni?

A: Given

Q: N BACK p2 Explanation EN ci B This is not \ Correct

A: The  process of delocalisation of pie electrons from high density to lower density is known as…

Q: INSOLUBLE CHLORIDE AND THE SOLUBILITY PRODUCT CONSTANT Cation A: Ksp: Cation A: Ksp: Cation A: Ksp:…

A: Generally, most of the metal chloride salts are soluble in water; only the cations of Group I metals…

Q: An aqueous solution of rubidium sulfate contains 0.38 M rubidium ions. If the solution contains no…

A: Here  we are required to find the concentration of sulphate ions in the solution.

Q: (b) Provide the retrosynthesis followed by forward synthesis for the following compounds : or (i)…

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Q: How many pounds of Uranium are required per day to generate the electric energy of a 1000 mega Watt…

A: Given:- 1)Generated electric energy(E)=1000 mega Watt            1 mega watt=1000000 J/s Now,…

Q: 11. What is the relationship between these two molecules? Are they enantiomers, diastereomers, or…

A: In the first molecule (left side), two -OH group remain in same side and one -OH group remain in…

Q: A butter mixture is required to buffer a solution at pH 6.1. Which of the two weak acids, along with…

A: Concept based on the buffer solutions.

Q: How many moles of cesium are in 66.45 g Cs?

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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.