Below is a plot of a typical cooling curve of substances. Describe what happens to the phase and temperature of a substance in the following points or segments. Write your answers in the table below. D time Point / Segment a. point A to point B b. point B c. point B to point C | d. point C to point D e. point D f. point D to point E g. point E to point F Phase Temperature

Q: 459 C of charge is passed through a solution of AICI3(aq). Determine the number of moles of aluminum...

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Q: The weak acid, HA, has a Ka of 3.00 x 10-8. What is the Kp of its conjugate base, A"?

A: Given :- Ka for weak acid HA = 3.00 × 10-8  To calculate :- Kb for conjugate base A-   

Q: Calculate Miller's coefficient for the surface that cuts the crystal's coordinates at the Cartesian ...

A: This question is related to crystal/ solid state. First we will plot the intercepts given on each ax...

Q: rogen bromide and oxygen react to form bromine and water, like this: 4 HBr(g) + O,(9) → 2 Br,(9) + 2...

A: Given- 4HBr+O2->2Br2+2H2O Kp=?

Q: What is the pH of a 0.200 M solution of sodium acetate?

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Q: CH3 HCI CH3 H3C (b) H3C. HBr H3C. CH3 Br (с) HBr or (d) HCI

A: Given 

Q: 4. Fill up the missing words in this statement. The boiling point of a non-polar substance is ______...

A: Boiling point: The temperature at which the vapor pressure of a liquid becomes equal to the atmosphe...

Q: Example: A phosphorus oxide contains 43.64% P and 56.36% O and its experimentally determined molar m...

A: Given compositions--- % P= 43.64 % % O = 56.36%  Molar mass = 283.89 g mol-1 Empirical and molecular...

Q: You were asked to record observations before, during and at the end of the experiment. Below are a l...

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Q: a Calculate AH° for the reaction 2K(s) + 2H20(1) → 2KOH(aq) +H2 (g) Substance and State AH (kJ/mol) ...

A: Mass of water given = 1000 gram Molar mass of water = 18 g/mol  

Q: [References] It has been determined that the body can generate 5500 kJ of energy during one hour of ...

A: Given:- •Energy generated during one hour exercise = 5500kJ. •Heat of vaporization of water = 40.6kJ...

Q: Which of the following represents the reaction of the weak base, CH3CH2COO", in water? O CH3CH2COO+ ...

A: Weak bases = CH3CH2COO^- 

Q: a. Calculate the molar mass of P2O5. Molar mass = g/mol b. Calculate the molar mass of Caz (PO4)2 . ...

A: Molar mass is the weight of one sample. First one is Phosphorus pentaoxide -contains 2 phosphorus at...

Q: ammonium perchlorate The pH will be less than 7. barium nitrite The pH will be approximately equal t...

A: The solutions which are acidic will have pH less than 7, more than 7 will be basic and having pH 7 w...

Q: The following set of kinetic data was obtained for a certain reaction. T, K 363 373 378 383 388 393 ...

A: The given data set is used to predict the effect of rate on temperature. According to Arrhenius equa...

Q: he conjugate acid c

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Q: Measurements have shown that the concentration of salt in seawater is  35.5·gL−1. Calculate the vol...

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Q: Rank elements from largest to smallest electronegativity value. To rank items as equivalent, overlap...

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Q: A system does 551 kJ of work and loses 236 kJ of heat to the surroundings. What is the change in int...

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Q: Question 5 A 20.00 mL aliquot of 0.200 M KI is added to another aqueous solution whose volume is 30....

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Q: Give clear handwritten Solution: Pressure of 50.0 psi is used to drive hexane through a 4.00 m leng...

A: Length of capillary = 4.00m  Diameter of capillary = 7.50 um 

Q: Pseudoephedrine is an amine that is the active component of the decongestant Sudafed. Choose the cor...

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Q: 0.36 mol of LiNO3 in 6.42 L of solution Express your answer using two significant figures. molarity ...

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Q: Refer to the given HNMR spectra, and determine the structure of the molecule. Corroborate your answe...

A: Solution: We know organic spectroscopies are most important for structure determination of unknown c...

Q: Compute the Normality of 35g of Sulfuric Acid dissolved in 500mL of water. 2.Based from #1, what is...

A: Given -> Weight of H2SO4 = 35 gm Volume = 500 ml = 0.500 L (1 L = 1000ml)    

Q: Which of the following represents the reaction of the weak base, CH3CH2CO0", in water? CH3CH2COO + H...

A: Reaction of weak base with water.,

Q: 3. Nitric oxide (NO) reacts with oxygen gas to form nitrogen dioxide (NO2), a dark-brown gas: 2 NO(g...

A: 2NO(g)  + O2  ----> 2NO2(g)  Number of moles of NO = 0.886 moles  Number of moles of O2 = 0.503 m...

Q: assiry eacN of the TOlTOwIng substantes: Clear All H+ Lewis Acid BCI3 Lewis Base H20 Can act as eith...

A: We have lewis acid and bases

Q: Give the conjugate base of the following Brosted- Lowry acid: ( i ) HIO3 ( ii ) NH4+   Group of ...

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Q: A 24.90-mL sample of hydrochloric acid solution requires 20.00 mL of 0.100 M sodium hydroxide for co...

A: At neutralization point,  Geq. of HCl = Geq. of NaOH  N1V1  = N2V2 

Q: full name of the compound.

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Q: 07) Como o RMN 'He C poderia distinguir entre as substâncias em cada um dos seguintes pares? e a) b)

A: ->On the base of number of signal in organic compound we can distinguish between compounds.  

Q: 4. aqueous cobalt(III) nitrate reacts with solid zinc to produce aqueous zinc nitrate and solid coba...

A: In multiple questions, we solve only first one according to the Bartleby guidelines. First write dow...

Q: Calculate the volume in milliliters of a 0.174M potassium dichromate solution that contains 75.0 mmo...

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Q: A chemist prepares a solution of silver(II) oxide (AgO) by measuring out 0.00332 umol of silver(II) ...

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Q: (2) jubai what is the Normal concentration of a solution that is 4 percent KHSO4 by weight and has s...

A: Normality: The number of grams equivalent of the solute dissolved in 1 L of the solution is known as...

Q: 7. If a neutral solution of a water , with pH= 7.00, is cooled to 10oC, the pH rises to 7.27. Which ...

A: Water can react with itself in a weak acid-base equilibrium to create hydronium ion and hydroxide io...

Q: Multiple choice 2. Which of the following statements is TRUE about the effect of 1 gram of ethan...

A: when a solute is added to a a solution then there is elevation in boiling point depending on the nat...

Q: Quantitative Analysis by External Standard Method Calcium in a juice sample is determined by atomic ...

A: Initial concentration of solution = M1 Volume of starting solution used = V1 Concentration of dilute...

Q: .250 M solution of Na2C204 is to be used in a reaction in which the C2042- will be oxidized to C02. ...

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Q: Calculate the pH at the equivalence point for the titration of 0.100 M methylamine (CH, NH,) with 0....

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Q: Oxides can react with water to form acids or bases. Identify each of the following oxides as acidic ...

A: All oxides of metals are basic while those of non - metals are acidic  Cl and N are non metals hence...

Q: Consider the weak acids below and their corresponding Ka values. Rank the acids from weakest to stro...

A: Given Ka values: HNO2: (Ka = 4.0 x 10-4 ) HIO : (Ka = 2.0 x 10-11 ) C6H5COOH : (Ka = 6.5 x 10-5 ) Mo...

Q: At 1.00 atm, how much energy is required to hear 71.0 g H20 (s) at -22.0degrees C to H20 (g) at 163....

A: 1.)  To calculate the energy required to heat water , we would consider five steps .  a.) As water i...

Q: The acid dissociation constant K, of hydrocyanic acid (HCN) is 6.2 x 10 -10 Calculate the pH of a 3....

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Q: HW÷4 1. Give the major product(s) or starting material/reagents of the following reactions as needed...

A: 1. Alkene with Br2 gives cyclic bromonium ion intermediate. Methanol as nucleophile attacks from mor...

Q: Question 7 A reaction solution is prepared with [S20g2] = 0.0500 M and [I"] = 0.0400 M. The reaction...

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Q: nte 7. D-glucose, blood sugar, exists in two forms; ring open and ring closed. Don’t worry about the...

A: Carbohydrates - Are the polyhydroxy aldehyde  and polyhydroxy ketones.  They have general formula Cn...

Q: 8.) Determine AG°rxn using the following information. (assume 298 K) H2(g) + CO(g) → CH2O(g) AH°=+1....

A: This question is related to Gibbs energy formula. Gibbs free energy is a quantity that is used to qu...

Q: The following compound is treated with 1 equivalent of K2Cr207. Provide the name of the product that...

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