Q25- Which of the following are mostly used for precise volume measurement of liquids? A) Conical flask B) graduated cylinder C) Beaker D) burette

Q: Practice Exercise of precipitation titration: Calculate the titration curve for the titration of…

A: Initial mmoles of AgNO3 or Ag+(aq) taken for titration = C*V = 0.0500 molL * 50.0 mL = 2.50 mmol…

Q: C. Draw the skeletal structure and give the IUPAC name for each compound. Condensed Structure…

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Q: What is the oxidation number of Cr in Na2Cr2O7 What is the oxidation number of K in KClO4 What is…

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Q: 28.5 g

A: Mass of 1 square inch of air =14.7 psi   1 psi =453.592 grams   14.7 psi=   =14.7 x 453.592   =…

Q: QUESTION 1 1. Chemical bonding in chemistry may be explained by INTRA- and INTER- molecular bonding,…

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Q: НО. x

A: The Halo form reaction helps to convert methyl ketones to Carboxylic acid

Q: Drawing of approximate geometry of structure #2 (bond angles must be appropriate for the geometry,…

A: As #2 you haven't mentioned. Still from your wrong figure of structure I believe the molecule is NH3…

Q: Answer number 1 to 5 pls.

A: 1) Concentration Blowing air on the campfire to help it go.  concentration (increasing partial…

Q: Use Table 1 to determine if the following equilibria will move left or right i. HF (aq) + NH3 (aq) =…

A: To predict the direction of equilibrium in the given acid -base reaction.      "Since you have asked…

Q: How many moles of MgCl2 are present in 78.3g of MgCl₂? O 0.822 moles O 7450 moles O 1.31 moles O4680…

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Q: 2. The kinetics of an enzyme are measured as a function of substrate concentration in the presence…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: CN NH₂

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Q: 3. Consider the range indicated, find the normalization constant of each of the ollowing…

A: ->for normalised wave function probability density is equal to 1.

Q: 1. Provide a systematic name (assigning absolute stereochemistry if necessary) for each of the…

A: We are authorised to solve first three subparts of a question. Please post rest of the subparts…

Q: What mechanism is involved in the reaction below? CH3 CH3 H₂C- H₂C SN1 E2 E1 C. d. SN2 a. b. CI +KCN…

A: Answer : SN2

Q: Milligram of base required to completely hydrolyze & neutralize 1 g of triglyceride/fat sample…

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Q: Here is a hypothetical reaction and a table showing the initial concentrations of substances in the…

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Q: O OH O C-OH 0 С-ОН Br NO₂ H2C-CH3 ОН I 11 III IV V Rank the following acids by acid strength, from…

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Q: How many milliliters of lactic acid must be added to 1L of water to produce a solution of 0.477 mM?…

A: The correct answer is given below

Q: If a 1 mL of HCl is equivalent to 1.5 mL of 0.25 N NaOH the volume of the alkali would be consumed…

A: At equivalence point Moles of NaOH = moles of HCl  For HCl and NaOH = N = M

Q: OOH О-С-ОН 0 С-ОН 0 С-ОН Br NO₂ H2C-CH3 ОН . V II IV Rank the following acids by acid strength, from…

A: ->For Acidity we see stability of conjugate base if conjugate base is more stable then it is most…

Q: If 0.2149 moles of a something weighs 69.75 g, what is the molar mass of it, in units of g/mol?…

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Q: Chemistry What is the energy change when fructose is phosphorylated (3.8kcal/mol) and ATP is…

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Q: Binary mixtures of equal moles of which of the following acid-base combinations will lead to a…

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Q: Consider the following equilibrium: N₂ (g) + 3H₂(g) → 2NH3 (8) AG: =-34. kJ Now suppose a reaction…

A: given, [H2] = 3.70 atm  [NH3] = 8.46 atm

Q: 1. Compute for the total Entropy change (Suniv) in the oxidation of metallic iron into ferric oxide…

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Q: A. Tell which of the following species is the strongest oxidizing agent. With solution each Ce. Brz.…

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Q: unfortunately, I am asking for the name of the product

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Q: Label the conjugate acid-base pairs in each equation: 1. HI + NH3 NH4+ + I- 2. HPO4^2- + OH- PO4^3-…

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Q: If a patient requires 2896kcal per day 50% carbohydrate, 40% protein and 10% fats, how many grams of…

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Q: 4. Consider the first-order decomposition reaction of N₂O5 as shown below: N₂O5 2NO2+ - 0₂ 2 At…

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Q: si OTMS OMe TiC14 H* F Reaction 4

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Q: 81. A 58-year-old man who is a construction worker comes to the office because of a 1-week history…

A: E) water

Q: Question 2 Inversely related to the molecular weight of the sample lipid Saponification number O…

A: Lipids can be defined as the molecules that are made up of hydrocarbon skeleton. They are insoluble…

Q: ethyl mercaptan concentration in a mixture was determined by shaking a 2.0430-g sample with 50.00 mL…

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Q: The ketone produced in the process is: H diphenylketone benzaldehyde O benzeneketone benzoyl…

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Q: 14.107 Consider the reaction that takes place in a lead-acid battery when it discharges: Pb (s) +…

A: Option (A), (B) and (C) are incorrect.  Oxidation state of Pb(s) increases from 0 to +2. So it…

Q: OH + H₂CRO4 → (a) 1. 2. H₂C=CHCH3 + H*/H₂O → (b) 3. CH3CH₂CH₂Br + LiAlH4 → (c)

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Q: is A a nitrile or nitro? is B ester or carboxylate or carbonyl?

A: A is neither nitro nor nitrile ,, A is amine B is Carbonyl group

Q: Explosions! Which part of the explosion event is NOT considered a chemical change? a) Ethanol reacts…

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Q: Determine the name and draw the structure of the product formed from the reaction: CH3CH2CH2Br +…

A: In this question, we will draw the structure of the product and name of the product after reaction…

Q: 4. Without consulting tables, arrange the following alkenes in order of increasing boiling point.

A: Boiling point of a compound can be defined as the temperature at which it starts boiling. There is a…

Q: One carat is equivalent to a mass of 0.200 g. Use the fact that 1 kg (1000 g) has a weight of 2.205…

A: Given,  The weight of a diamond is 1414 carat.  The weight of a diamond in pounds is:

Q: acid base K K₂b name formula name formula 10 nitrous acid HNO₂ 4.5 x 10 aniline |C HạNH, | 4.3 × 10…

A: Ka value of acetic acid = 1.8×10-5 Ka value of HNO2 = 4.5×10-4 Kb value of aniline = 4.3×10-10…

Q: If a 1 mL of HCl is equivalent to 1.5 mL of 0.25 N NaOH the volume of the alkali would be consumed…

A: Given :  1 ml of HCl is equivalent to 1.5 ml , 0.25 N NaOH solution.  Volume of acid = 30 ml

Q: HO-CH₂ H 1. OH 2. CH3(CH2)22 H₂N 3. H O H H CH₂OH H NH₂ O(CH₂)17CH3 H O C-N-C C H -0 4. 0 5. сно HIC…

A: Biomolecules can be defined as the compounds that are present in Living beings.

Q: If a 0.50 mol/L weak acid is diluted to 0.050 mol/L at constant temperature, which of the following…

A: Given, Initial concentration of weak acid H+ = 0.50 M  Diluted concentration of that acid H+ = 0.050…

Q: what mechanism is involved? SN1, E2, E1, or SN2

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Q: I. Write the condensed structures corresponding to the following names: 1.…

A: See below

Q: Fluorometry is more selective and more sensitive than absorption spectrometry.Tell what is meant by…

A: Sensitivity: It is relatively easy to detect lower level of light from fluorescent emissions than…

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.