density

Q: 7. Freezing point of pure Naphthalene from cooling curve- 8. Freezing point of solution 9. AT 10. Mo...

A:

Q: Which solution has lower vapor pressure? A.) a 0.2M KNO3 Solution B.) all four solutions given have ...

A: Colligative properties : Those physical properties of a solution which depend upon the number of par...

Q: the primary barrier towards the broad adoption

A: In this question we have explainte primary barrier towards the broad adoption of FTIR in midle of 20...

Q: Question 3. Consider the reaction scheme below. Under the proper reaction conditions this transforma...

A: a) This is a 2+2 cycloaddition reaction. It takes place in the presence of light (photochemical cond...

Q: identify whether the process is oxidation or reduction. indicate the number of electrons or gained p...

A: Oxidation reaction is the reaction in which loss of electrons takes place while Reduction reaction i...

Q: Develop a general equation for the standard heat of reaction as a function of temperature for one of...

A: To develop a general equation for the standard heat of reaction as a function of temperature for one...

Q: What happens to the rate of an Sy2 reaction when both [RX] and [:Nu ] are halved? The rate (select) ...

A: In the case of SN2 reaction,the rate depend on both the reactant and nucleophile  That is rate (R1)=...

Q: When excess dilute hydrochloric acid is added to a mixture of calcium oxide and magnesium oxide. A h...

A: The name of the two salt produced are Calcium chloride and Magnesium chloride.

Q: IUPAC NAME

A:

Q: Determine the AH for the overall reaction based on the three-step thermochemical processes below: AH...

A: The steps of the reaction given are,  

Q: A mixture of 0.20M acetic acid and 0.30M sodium acetate is given. Calculate the pH of the medium if ...

A: A. Following components are given in the equation: Concentration of acetic acid (proton donor) = 0.2...

Q: One sample of CaC2, contains 0.150 mol of carbon. How many moles and how many grams of calcium are a...

A: Number of moles of carbon in CaC2 = 0.150 mol  Number of moles of calcium = ?  Mass of calcium = ? 

Q: Answer true or false to the following (give the reason) 1. The metallic ion force depends on B.O. 2....

A: The answer is as follows:  

Q: DRINK MIX please convert um to ppm of drink mix and show solution. thank you I dont ...

A: Answer -

Q: how many hydrogen atoms are in 0.1488 of g phosphoric acid

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Q: Question 13 An ē at its excited state is stable unti it return to its ground state. If an ē jumped m...

A: When an electron absorb energy then it excite to the higher energy level and return back to lower en...

Q: Which of the following is the most correct name for this compound? a. (1R,3S)-4-ethylcyclopentanecar...

A: Carbaldehyde is used for naming Aldehyde  because aldehyde group is outside the Ring .

Q: , is a metal that can has two common ionic charges, Im2+ and Im3+. The exite polyatomic ion is XO32...

A: Double Displacement is a type of reaction in which exchange of ions takes place that is positive and...

Q: What are the bond angles for a central atom with 2 atoms bonded to it?

A: VSEPR theory: The structure of a molecule can be determined by using the VSEPR theory. According to ...

Q: Which of the following requires minimum energy for electronic transition among atomic orbitals of H-...

A:

Q: Screen. 7 With increasing polarity of solvent the

A: UV-Vis Spectroscopy can be defined as a technique that is used for measuring amount of light absorbe...

Q: 10) What alcohols would give the ff oxidation products? (b) CH3 CH3CHCHO (a).

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Q: 7. Given this graph of solubility of a solute (X) in (mg/mL) vs. temperature (°C) of three different...

A: Answer 7 : Solvent A and C are poor solvent while solvent B is good solvent.          Answer 8 : S...

Q: (Q89) The hydrolysis of sucrose to form fructose and glucose is a first order reaction that has a ha...

A: Initial concentration of sucrose = 0.879M Final concentration of sucrose = 0.363M Half life time = 2...

Q: To get electrical energy from an Galvanic cell the emf should ans. Positive None Zero Negative

A:

Q: HO-CH3 (d) H* (e) H20 HCI (g) CH3-C=N + H20 Heat +

A: Please find your solution below : A reaction is a process in which a chemical substance gets transfo...

Q: 2NO(g) +O2(g) →  2NO(g) The following kinetic data were obtained for the initial rates of disappear...

A:

Q: 3.32 Balance the following equations and then write the net ionic equation. (a) (NH,),CO;(aq) + Cu(N...

A: Since you have posted question with multiple subparts as per guidelines we can answer three per ques...

Q: which one of the following will show only one 'H-NMR signal? ans. Isobutane None Neopentane Pentane

A: NMR spectroscopy is a very important tool for the determination of the structure of the organic comp...

Q: What is the bond angle of NH4+

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Q: nitric

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Q: An ē at its excited state is stable unti it  return  to its ground state. If an ē jumped more than o...

A: An electron jumps from a lower energy level to a higher energy level by absorbing some energy. More ...

Q: 9) Predict the reactants for the ff products: SH (a) CH3OCH2CH2CH3 (b) „OCH3 (c) (d) CH3 CH3CHSCH2CH...

A: the reactants are as follows:  

Q: Which of the following is the most correct name for this compound? H a. 2,5-dioxooctanal b. 4,7-diox...

A: IUPAC Rules for naming an organic compound: 1. The longest possible continuous carbon chain was sele...

Q: the required amount of 500mg ascorbic acid tablets to puverize  the necessary amount of distilled wa...

A: We need to prepare 0.1 M stock solution.

Q: Туре of Crystal Covalent Metallic Ionic Molecular Substance Network Dispersion Forces Dipole- Dipole...

A: In this question we have to determine the type of crystal solid formed by the given compounds.

Q: Complete the following reaction scheme. A H H,0, H,O* HBr, H,02 Br, H,0 conc. H,SO, H;C- CH3 G H,, P...

A: Since you have posted question with multiple sub-parts, we are entitled to solve the first 3 only. T...

Q: Identify each as weak or strong electrolyte. Nitrous acid In solution acid is written? Hydrosulfuric...

A: Weak electrolyte:  A substance that partially dissociates into its ions during the solvation process...

Q: Molecule ЕPG Hyb (circle if polar) 2D Lewis Structure 3D Lewis Structure MG ВА CIF*

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Q: HO Но H- H -HO- 1.) HO. + Resorcinol/dilute HCl

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Q: What type of equilibria is manifested by the formation of carbon monoxide from the reaction of carbo...

A: Equilibrium is the state of the reaction where the rate of forward reaction is equal to the rate of ...

Q: What reactants are needed to yield the following product?

A: This product can be formed by Diels Alder reaction ,in presence of heat one diene react with dienoph...

Q: What is the better known name for the deadly poison Prussia acid ?

A: Acid can be defined as a species that can give H+ ipns in aqueous solution. Aqueous solution means s...

Q: e equilibrium constant nstant

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Q: L) One type of commercial smoke detector contains a minute amount of radioactive americium-241 (24'A...

A: Given that

Q: Question 13 An ē at its excited state is stable unti it return to its ground state. If an ē jumped m...

A: In an atom electron rotates around the nucleus in certain orbital.Transition of electron occur when ...

Q: Table 2. Calculations ~60°C trial ~50°C trial ~40°C trial ~30°C trial ~20°C trial Vol. of HCI used (...

A: In the given experiment the titration of borate with hydrochloric acid is being carried out at diffe...

Q: Which of the following has the maximum number of unpaired electrons? ans. Cot Cr+ Cut Mn+

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Q: 1. IfH ions in the solution increases, a The more basic is the solution. b. The solution becomes neu...

A: Acidity and basicity of a solution can be measured by using pH scale. pH less than 7 means solution ...

Q: Current Attempt in Progress How many moles of H2 and N2 can be formed by the decomposition of 0.227 ...

A:

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.