diatomic

Q: A. Identification of Aromatic Hydrocarbons. ÇH, „NO, O,N Br `CH;-CH3 CH, 10. H,C

A: Aromatic hydrocarbons are those compounds which follow following characteristics -  (1) These follow...

Q: If a sample of urea, CH4N2O is 55% pure, what is the percent by mass of nitrogen in this sample assu...

A: Given that -  Percentage purity of urea , CH4N2O is = 55%  Molar/atomic masses are -  C = 12.01 g/mo...

Q: How many calories of heat will raise the temperature of 60g of ethylene gylcol from 10 degrees C to ...

A: Given  Mass of ethylene glycol ( m ) = 60 gram Initial Temperature ( T1 ) = 10 ℃  Final Temperature ...

Q: pea water contains an average of 1.08 x 10° ppm of Na' and 270 ppm of S04“. Calculate a) The molar c...

A: A) Solution - According to the question - Given - Ppm means 1 mg per kg Lets assume we have 1 kg sol...

Q: Given OH O,N (b) Which is the stronger acid (a or b)? Explain your choice in ()

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Q: What is the purpose of adding NaOH to the filtrate? O To increase the pH of the fermenting solution ...

A: In the process of fermentation ph of the solution decrease as reaction goes on . And we need to main...

Q: QUESTION 8 What is the purpose of adding NaOH to the filtrate? O To increase the pH of the fermentin...

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Q: B. Physical State of Aromatic Hydrocarbons. CH3 CH3 Br NH: CH,CH, CH3 H3C CH,CH, Br HCH, CH, Br CH, ...

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Q: total mass i

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Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal i...

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Q: e 1° stap tydens h an ketone. Below is the 1 step of a condensation reaction of ketones. POH -H20 un...

A: Here we have to write the mechanism of above reaction and possible resonance structure-

Q: Draw the major organic product(s) of the following reaction. CH3 H3C-C-CI H20 ČH3 You do not have to...

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Q: Write the balanced chemical equation, ionic equation, net ionic equation, and spectator ions for the...

A: In a precipitation reaction, one product is insoluble in water. 

Q: Locate each of the chiral centers (use red ballpen to indicate asterisk) in the following molecule a...

A: Chiral center :-  The chiral center is center of sp3 hybridized carbon in which all four bonds carbo...

Q: Derive the half-life equation for a second-order reaction. What is the half-life for the decompositi...

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Q: Identify the reaction that produced a blue precipitate (Exp 5). O CuO + HSO-→ CuSOq + H;O Cu + HNO3 ...

A: CuO + H2SO4 → CuSO4 + H2O In this Reaction we get the Blue solution of CuSO4 , but we don't get the ...

Q: The reaction rate for the decomposition of N2O5 to form NO2 and O2 was studied as a function of temp...

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Q: The Cacoz titer of a H2SO4 solution is 29.40 mg/mL. what is the normality of the H;SO4 solution? Mol...

A: Correct option is c . Solution is given below 

Q: x Q: At 25 Ca tie line 7%---------70%, find the mass ratio and the composition of each phaseof 40% w...

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Q: 8. (a) Use the Clausius-Clapeyron equation and calculate the vapor pressure (mm Hg) of fluoroethane ...

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Q: 6. Metallic Cd reacts Cd (s) + 2 I The enthalpy change assoc

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Q: Which of

A:   It is used to identify functional groups present in organic compounds IR functional group frequen...

Q: Gold-198 is used in the diagnosis of liver problems. The half-life of 198Au is 2.69 days. If you beg...

A: Given,  Half-life of Au = t1/2 = 2.69 days  Initial concentration = N0 = 2.8 mg  Time period = t = 1...

Q: What are the chemical features of phosphatidylcholine?

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Q: Predict the major organic product for each of the following reactions. Draw the condensed structural...

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Q: The reactions of hydrocarbons are often studied in the petroleum industry. One such reaction is 2C3...

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Q: Derive the half-life equation for a zero-order reaction. What is the half-life for the decomposition...

A: In order to get the equation we have to know half life of a reaction. Half life means time require t...

Q: how at high temperature volume of gas is negligible?

A: We need to explain the principle that at high temperature volume of gas is negligible in comparison ...

Q: heat in kJ

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Q: What are the formula weights of (a) CO2 and CaCO3 ?

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly repos...

Q: Calculate the total enthalpy in kJ of a 1.322 g sample of steam at 100oC going through various phase...

A: during phase transition the enthalpy  is evolved in each step and the cumulative heat released is th...

Q: Q2: Express the rate of reaction in terms of the rate of change of each reactant and each product in...

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Q: .For each reaction below, (i) write a balanced reaction equation, including proper state symbols, an...

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Q: submit when you are finished with questions carefully, some questions have molar Question 31 Which o...

A: Chemical  reaction involves reactant and products  in which reactant  react to form products .

Q: C 4

A: Stoichometric coefficients are the coefficients of reactants and products in a balanced chemical rea...

Q: A possible reaction for the degradation of the pesticide DDT to a less harmful compound was simulate...

A: The given rate constant (k)= 2.55×10^-8 s^-1  Given reaction is first order  And we know for first o...

Q: Electrical Conductivity In three separate beakers, place 30ml each of 1M glycerol, 1M NaCl, and eth...

A: 30ml, 1M glycerol 30 mL, 1M NaCl 30 mL, 1M ethyl alcohol.

Q: Consider the following reaction which occurs at P = 1.00 atm and T = 573 K.                2NaHCO3(s...

A: Applying formula  deltaH = deltaU + P. DeltaV  where Delta H = enthalpy change  deltaU = internal en...

Q: What is activation energy?  Select one:

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Q: Using the heats of formation below, calculate the heat of reaction for the following reaction:   C...

A: Given: Standard heat of formation of C2H6(g) =  -84.86 kJ/mol Standard heat of formation of O2(g) = ...

Q: How much energy in kJ is released in burning 2.83 mL of gasoline (assuming that all of it is octane ...

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Q: The reaction for the Haber process, the industrial production of ammonia, is N2(g) + 3H2(g) → 2NH3(...

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Q: 3.7 g of brass (Cp = 0.38 J/g-oC, initially at 68oC) and 4.5 g of aluminum (Cp = 0.9 J/g-oC, initial...

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Q: H=m x c x delta T    Initial T of cold water = 25 degrees C  Final T of cold water = 30 degrees C...

A: H = mC(T2 - T1)  where, C = Specific heat capacity  Specific heat capacity is the amount of heat req...

Q: Identify if the following characteristic of metabolism is about aerobic respiration or fermentation ...

A: Aerobic respiration takes place in the presence of oxygen while nor oxygen or pyruvate derivatives a...

Q: Calculate the ppm Na+ (23.00 g/mol) in the solution

A: Given 0.3000 g of Na3PO4 (163.94 g/mol) is dissolved in water and diluted to 100.0 mL  We have to Ca...

Q: Why is it important to use a clean and dry round bottom flask in the synthesis of acetanilide from a...

A: The chemical reaction that is a synthesis of acetanilide from acetic anhydride and aniline occurs in...

Q: A solution was prepared by dissolving 5.76 g of KCI MgCl2.6H2O (277.85 g/mol) in sufficient water to...

A: Mass of solute = 5.76 g  Molar mass of solute = 277.85 g/mol Volume of solution = 2.000 L  We need t...

Q: The following series of reactions were carried out. PbCO:(s) + 2HN03(aq) → Pb(NO3)2(aq) + H2O(1) + C...

A: * Moles of Lead (ll) chloride produced = 0.0107 mol

Q: A substance was found by analysis to contain 45.57% tin and 54.43% chlorine. What is the empirical f...

A: In the given question we have to find out the empherical formula of the following substance.

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.