Incorrect Separation Scheme HO. HO. Br ether, 5% NaHCO3 ether aq HO. Br 6M HC1 gravity filtration S aq S NaCl ether HO. ОН Br

Q: Why is it needed to cover the buffer solutions until their pH is determined? For a buffer prepared ...

A: Generally we cover a buffer solution untill the pH is determined because-

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Q: Determine if the following reaction is spontaneous in standard conditions Cl'(ag) + 4MNO2(6) + 8H*(a...

A: Given reaction is :  Cl- (aq) + 4MnO2 (s) + 8H+ (aq) -----> ClO4- (aq) + 4Mn2+ (aq) + 4H2O (l)  D...

Q: Confirmatory Test NaOH(aq) Test/reagent used: Chemical(s) responsible for a positive test: NH:(aq)/N...

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Q: a buffer?

A: Buffer solution is the solution which resist the change in pH when a little amount of acid/base adde...

Q: 7. Consider this equilibrium system: so-(g) + Cl,(g) a So,Cl,(g) Predict how the equilibrium positio...

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Q: ment by showing him your calcu is given below :

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Q: A 25.0 mL solution of acetic acid which is initially 1.0 mM CH3COO and 4.0 mM CH3COOH is titrated wi...

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Q: 3. A pH electrode system is calibrated with standard buffer solutions, with the following voltages o...

A: Solution- Data Given- pH 4.01=111 mV, pH= 7.00 = -55 mV, pH 10.01= -215 mV.  

Q: Calculate the volume (in mL) of 2.25 M HNO 3 solution required to react with 24.2 mL of 3.50 M NaOH ...

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Q: What volume in milliliters of 0.0180 M Sr(OH)2 is required to neutralize 65.0 mL of 0.0400 M HCI?

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Q: Consider the NMR chemical shift of a methoxy proton (R-O-CH3) and the chemical shift of a R2- N-CH3 ...

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Q: 4. A 2.00 liter vessel in which the following system is in equilibrium contains 1.20 moles of COCI2,...

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Q: of poten- -0.185 V at 25 °C and pH 7.0. What will be the p tial of this system if the oxidation has ...

A: Nernst equation is an equation that can be used to determine the reduction potential of an electroch...

Q: What volume (in mL) of 0.2000 M HCI is required to neutralize 75.00 mL of 0.6000 M LIOH?

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Q: Summarize what you have learned nodule separate sheet of paper. You can improve the concept map by a...

A: Atom is the basic building block of all matters whereas ions are charged atoms or molecules.

Q: . Ca(HCO3)2 → f. H2S (aq) → ------ g. KMnO4 → c. HIO4 → h. P4O10 → d. SrS2O3

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Q: 2. a. Calculate the energy given off when electrons in a neon atom move from the fifth energy level ...

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Q: What do Ka, Kb, Kc, and Kw stand for? I keep getting them confused with each other. less

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Q: 2. use oxidation number method

A: Balanced chemical reaction, 

Q: Identify the suitable reagents for the following: Br-

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Q: What volume in milliliters of 0.100 M HCIO3, is required to neutralize 40.0 mL of 0.205 M KOH?

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Q: 1. Fill in the diagram (with "high" or "low") to show how intermolecular forces influence the volati...

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Q: State the Second Law of Thermodynamics.

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Q: te ΔΗ

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Q: 1. Calculate the mole fraction of each component of a solution containing 65 g of ethanol (C 2 H 6 O...

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Q: Which two of the following are spontaneous processes? (Circle only two): a) rusting of an iron nail ...

A: A reaction which occurs without the input of energy is called a spontaneous reaction. 

Q: The equilibrium constant, Kc, for the following reaction is 1.29×10-2 at 600 K. COCI2(g) Co(g) + Cl2...

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Q: When 22.0 mL of a 3.20x10-5 M sodium hydroxide solution is combined with 15.0 mL of a 3.03x10-4 M co...

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Q: The impedance transformation equation for 3-winding IT.

A: The impendence binding energy formula shown below.

Q: Oxalic acid is a diprotic acid with ionization constants Ka = 5.62 x 10- and K = 5.42 x 10-5. Calcul...

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A: In elimination reaction a species leave the substrate and double or triple bond is formed.

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Q: Write the balanced equation for the complete oxydation of C4H8O.

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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.