Calculate the number of oxygen atoms in a 50.0 g sample of iron(III) oxide (Fe,0,). Be sure your answer has a unit symbol if necessary, and round it to 3 significant digits. x10

Q: How many joules of heat are required to raise the temperature of 200.0 g of water from 18.0°C to 42°...

A: When supply of heat of Q to any substance of mass m increases its temperature  by Δt, then        Q∝...

Q: Describe the titration curves of each of the acids. Weak acids pK1 pK2 pK3 Phosphoric acid 2.15 Aspa...

A: Two significant ideas in science are titration and corrosive base responses. Titration is the strate...

Q: Question 1 What is the Haworth representation of this ball and stick stucture? O HOCH2 0 OH OH OH OH...

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Q: help me asap pls less than 30 mins for number 6. i'll give you an upvote when you're done!

A: Given data, moles of Cu =0.0424 mol  moles of HNO3 =0.160 mol   Moles of Cu(NO3)3 = ?   

Q: 3) 1,6-dimethyl-5-ethyl-2-heptene Expanded Structure Condensed Structure Line/Skeleton Structure 4) ...

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Q: If your unknown contained an acid and a base then why would it be important to use either strong aci...

A: Solution                                     Given that  Suppose the unknown contained a mixture of ...

Q: If 0.0916 g P406 is mixed with O.113 g H2O, what is the theoretical yield? P406+6H20 → 4H3 PO 3 0.13...

A: Given balanced reaction is :  P4O6 + 6H2O --------> 4H3PO3  Mass of P4O6 = 0.0916 g  Mass of H2O ...

Q: Calculate the concentration of all ions present in each of the following solutions of strong electro...

A: Given :  a. 0.15M CaCl2b. 0.26M Al(NO3)3c. 0.25M Al2(SO4)3  To be calculated :-  Concentration of ea...

Q: Draw all the possible stereoisomerism for following structures. Label the chiral centre with an aste...

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Q: A sample of methane gas that has a volume of 3.8 L at 5º C is heated to 86º C at constant pressure. ...

A: Given,  Initial volume of methane gas = V1 = 3.8 L  Initial temperature = T1 = 5 ºC Final temperatur...

Q: acting in modulating solubility. lipophilicity, and cel permeation (e.g. antibiotic or antihistamini...

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Q: If 0.120 g C3H6 and 0.10 g NO are allowed to mix according to the following reaction, how many grams...

A: Number of moles is calculated by dividing given mass with molecular mass.

Q: When doing titration to an acid with NaOH, instead of using HCl, you used H2SO4 instead. Would you u...

A: When equivalent amount of acid react with equivalent amount of base, gives salt and water.This react...

Q: Consider the following balanced reaction: Cu + 4HNO3 → Cu(NO3)2 + 2NO2 + 2 H2O If 0.0424 mol Cuare m...

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Q: 30. In the Bluret Test for the presence of protein, egg albumin and gelatin dispersion formed a colo...

A: Biuret test is a chemical test used to determine the presence of a peptide bond in a substance.

Q: 2. A 1000 cc flask is filled with 4.00 grams of hydrogen gas and 8.27 ounces of bromine gas at   44...

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Q: For a reaction that has reactant A in its rate law, select which factor(s) affect the reaction rate ...

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Q: precipitate wil

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Q: 37. are characterized by the presence of only sigma (a) bond; hence, the carbon atoms are all single...

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Q: 25.0 mL of a 0.356 M solution of NH4 + was mixed with 40.0 mL of 0.842 M potassium nitrate. What is ...

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Q: 18. The reaction of the carboxylic acid with an alcohol and an acid catalyst leads to the formation ...

A: the process of combining an organic acid (RCOOH) with an alcohol (ROH) to form an ester (RCOOR) and ...

Q: Question 19 What is the pyranose/furanose ring structure of this sugar? OH OH OH ÓH он но OH он но O...

A: Let us draw the straight chain structure and then its cyclic structure.

Q: Sulfuric acid is made in a three-step process: (1) the combustion of elemental sulfur to produce sul...

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Q: 3. For the reaction, N204(g) 2 nitrogen dioxide (g) At 25°C, the equilibrium concentrations of nitro...

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Q: Identify a pair of one body parts/ organs of the Human Body that exhibit chirality_ (Exclude hands a...

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Q: a-D-glucopyranosyl-(1–3)-B-D-fructofuranosyl-(2–1)-a-D-glucopyranoside. This is a reducing sugar. O ...

A: reducing and non-reducing sugars.

Q: Write the balanced net ionic equation and name the precipate formed in each reaction  1. CU(NO3)2 (...

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Q: 5

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Q: Consider the following reaction for the formation of aluminum sulfate. 2AI(OH) 3 + 3H 2 SO4 → Al2(SO...

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Q: (i) Draw the structure of styrene. (ii) Markovnikov's rule. Outline the mechanism when styrene react...

A: Introduction In Markovnikov's addition reaction, the negative part of the attacking molecules (like ...

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Q: Current Attempt in Progress Based solely on the amount of available carbon, how many grams of sodium...

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Q: Draw the structural condensed formula of ethyl methanoate.

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Q: Given the following reactions:             N2(g) + 2O2(g) → 2NO2(g)      ΔH = 66.4 kJ             ...

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Q: Consider the following balanced reaction: 2C4H10+ 1302 If 0.237 mol C4H10 and 1.65 mol O2 are allowe...

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Q: glass vessel contains 28 g of nitrogen gas (N2). Assuming ideal gas behavior, which of the processes...

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Q: 3. During the first total synthesis of chelidonine, a cytotoxic natural product isolated from the ro...

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Q: Consider the following reaction for the formation of aluminum sulfate. 2AI(OH) 3 + 3H 2 SO 4 A quant...

A: A multiple choice question based on mole concept that is to be accomplished.

Q: thermometer A 51.6 g sample of quartz is put into a calorimeter (see sketch at right) that contains ...

A: A question based on chemical thermodynamics that is to be accomplished.

Q: Design a buffer that has a pH of 9.74 using one of the weak acid/conjugate base systems shown below....

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Q: Consider the following balanced reaction: 2C4H10 + 1302 → 8CO2 + 10H20 If 0.237 mol C4H10 and 1.65 m...

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Q: Calculate the number of oxygen atoms in a 150.0 g sample of scheelite (CaWO4). Be sure your answer h...

A: Number of Oxygen atom in 150g CaWO4 can be calculated as follows

Q: 1. How many phases did you observe when the naphthalene and p-dichlorobenzene were dissolved? What d...

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Q: 49. The general structure of the sulfur containing compound R-C-O-SH is for thiols O thials thio aci...

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Q: (CH;(CH,),CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,) and gaseo...

A: Mass of octane = 8.00 g  Mass of oxygen gas = 36.7 g  Theoretical yield of water = ? 

Q: Using the attached table below, solve for the energy (delta G) produced in each step of the electron...

A: Here electron flows from FADH2 to oxygen. So FADH2 will be oxidation half cell and oxygen will be re...

Q: 10. lodoform is an organic compound which is a yellow fine precipitate with an smell." fruity antise...

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Q: In Ethereum, what is the function of gas?

A: The concept of Gas in Ethereum introduced to to maintain a distinct value that particularly indicate...

Q: Give the mechanism behind sodium azide inhibit peroxidase enzyme? If possible specific the functiona...

A: inhibition of peroxidase enzyme by sodium azide.

Q: Match the hydrogens in lidocaine to the signals in the 1'H NMR spectrum below. Lidocaine CDC13 |要 8 ...

A: 1H-NMR spectra provides the number and types of hydrogens of unknwon compound.

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.