A student found that 39.621g of copper wire displaced 4.51 mL of water. If the actual density of copper is 8.94 g/mL, how many significant figures should you report when calculating % error?

Q: How many mLs of a 1.250 M NaSO4 solution are needed to make 100.00 mL of a 0.1500 M solution?

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Q: If chlorophyll had absorption peaks at 550 nm and 650 nm rather than 425 nm and 660 nm what colour…

A: Normally chlorophyll has absorption peak near 425 nm (Blue color) and 660 nm (Red color) giving it…

Q: When 1 mole of H₂(g) reacts with C₂H4 (9) to form C₂H6 (9) according to the following equation, 137…

A: If in the given reaction ,heat energy is released, then the reaction is called exothermic reaction…

Q: An atom of silver has a radius of 165. pm and the average orbital speed of the electrons in it is…

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Q: Calculate the number of milliliters (mL) of a 0.125 M solution of KOH will be required to titrate…

A: Molarity is defined as number of mole of solute divide by volume of solution in liter

Q: 1. Identify the major product? &=&&&* b Br t-BuOK OH t-BuOH a 2. The hydroxide ion (OH) in the…

A: If a strong bulky base like t-BuOK is present it will give less substituted alkene as the major…

Q: How much Fe(II) remains after 10 seconds and 30 seconds of oxidation with permanganate? The initial…

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Q: 70.0 mL of a 0.15 M weak acid (K₂ = 1.8 x 105 ) is titrated with 10 mL of a 0.50 M strong base.…

A: Neutralization reaction is  HA + B →BH+ + A- 1 mole weak acid is neutralized by 1 mole base.

Q: Question Three Draw and name the products of each of the following incomplete reactions. a.…

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Q: PROBLEM 3-5 All of the following names are incorrect or incomplete. In each case, draw the structure…

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Q: Q1) Plot the conductance on y-axis and time on x-axis. Q2) How to determine initial conductance (Go)…

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Q: ▾ Part A Calculate the percent ionization of 0.115 M lactic acid (K₂=1.4 x 10-4). Express the…

A: we have to calculate the percentage ionization

Q: Green plants use light from the Sun to drive photosynthesis, a chemical reaction in which liquid…

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Q: It takes 348. kJ/mol to break a carbon-carbon single bond. Calculate the maximum wavelength of light…

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Q: Second part of question not answered

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Q: Identify the type of elimination in an E2 mechanism.

A: Given : E2 elimination

Q: Given an unknown solid mixture of NaCl and Na2CO3, determine the mass percent of each compound via…

A: Theory involved:  The unknown mixture has NaCl and Na2CO3.  NaCl(s) is a neural salt, and Na2CO3(s)…

Q: A few different types of electromagnetic radiation are listed in the table below. Complete the table…

A: Given radiations: red light radio waves infrared radiation blue light We have to arrange them in…

Q: 8. Which of the following compounds will show Jahn-Teller distortion? [Mn(H₂O)]2+ [Mn(H₂O)]³+…

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Q: Complete the table below based on the given unit cell models given: SC FCC BCC a = edge length a=2r…

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Q: Negative and Positive Sings of Enthalpy System - Heat from the system ΔΗ A+B C+D When a reaction…

A: System is a part of universe or quantity of matter at which any thermodynamical process is being…

Q: Here are sketches of four electron orbitals:

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Q: A few different types of electromagnetic radiation are listed in the table below. Complete the table…

A: The order of frequency, wavelength and energy can be determined from electromagnetic radiation…

Q: This energy diagram shows the allowed energy levels of an electron in a certain atom or molecule: C…

A: The number lines in absorption spectra are determined from number of possible transitions.

Q: Exercise The fat content of potato chips is determined by weighing a sample before and after…

A: First we need to calculate the weight is fat in each sample using the data as :  Weigh of fat =…

Q: How many valence electrons are in a neutral atom of phosphorus? 0 X 5

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Q: The energy E of the electron in a hydrogen atom can be calculated from the Bohr formula: E--2/4 E=-…

A: we have to calculate the wavelength resulting from given transition

Q: What is the ratio strength (w/v) of an isotonic solution for pilocarpine hydrochloride FD1% 0.138?…

A: The NaCl concentration of blood is 0.9 % w/V Hence for a solution to be isotonic it should have 0.9…

Q: Name the following complex ions. formula [T(NH,), [Co (Co),]* [Sc(H₂O).]* name 0 O

A: Given : formula of compounds

Q: Potassium aspartate is shown below and has chemical formula K2C4O3H4N. Potassium aspartate is often…

A: The formula of potassium aspartate is not right.  The correct formula is K2C4H5NO4  Moles of…

Q: Write a balanced equation for the Alka Seltzer reaction where aqueous citric acid, H3C6H5O7, and…

A: Citric acid is a triprotic acid , which means it has 3 acidic protons to donate.

Q: The vapor pressure of liquid carbon tetrachloride, CCL, is 100 mm Hg at 296 K. A sample of CCL, is…

A: Here given that,  Initial volume of container  = 530 mL  Initial pressure of container  = 50 mm of…

Q: 6. Give the major product of each of the following electrophilic addition reactions: HBr HBr -CH₂…

A: Addition of HBr to alkene is an electrophilic addition reaction. In this carbocation is formed as…

Q: In a titration of 25.0 mL of hydrochloric acid solution with 0.107 M NaOH solution, 15.35 mL of the…

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Q: 2. Balance the following skeleton reactions, and identify the oxidizing and reducing agents: a)…

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Q: What is the value of n in the Nernst equation for the reaction Al(s) + 3 Ag⁺(aq) ⟶ 3 Ag(s) +…

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Q: Which of the following cycloalkanes are capable of geometric (cis-trans) isomerism? Draw the cis and…

A: Given : name of compounds Tip : cis : groups are on same side.          trans : groups are on…

Q: Rank the elements or compounds in the table below in decreasing order of their boiling points. That…

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Q: What will be the final temperature (°C) in of a 20.0 g piece of iron (Cp=25.09 J/(mol K), molar mass…

A: We know, n = W/M  ∆H = nCp∆T

Q: Calculate the pH of a solution with [H+] = 3.7 x 10-5 M O 5.00 3.76 O 9.67 O 4.43 O 12.5

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Q: Hydrogen chloride gas and oxygen react to form water vapor and chlorine gas. What volume of chlorine…

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Q: 5. Give the structures of the products expected from dehydration of the alcohol below. In cases of…

A: Here we are required to predict the major product for the dehydration reaction.

Q: Part C How do the 2 and 3p orbitas differ from the 1 and 2p orbitals? Match the words in the left…

A: There are four different types of orbitals, represented as s, p, d and f orbitals. An s-orbital is…

Q: It takes 945. kJ/mol to break a nitrogen-nitrogen triple bond. Calculate the maximum wavelength of…

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Q: res as hemiacetal, acetal, or other. Hemiacetal ОН H3C OH -ОН OCH3 ОН CH3CCH3 ОН Acetal H3C CH3 0 О…

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Q: Determine the ammonia concentration of an aqueous solution that has a pH of 11.30. The equation for…

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Q: The heat of fusion of water is 79.9 cal/g, the heat of vaporization of water is 540 cal/g, the…

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Q: Provide the correct IUPAC name for the compound shown here. HO CH3 OM -CH₂CH3 2- 3- 3,3-1- 4- 5-…

A: The compound is given and we have to tell the IUPAC name of the compound.

Q: You have just been employed as a new analyst for a pharmaceutical company and are required to…

A: Validation is the collection and evaluation of data, from the process design stage through…

Q: 37) You are asked to determine the amount of chloride in a sample. Provide two possible methods of…

A: Amount of chloride in a sample can be determined by various methods: a) Mohr's method: It is also…

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.