When dissolving salt in water, what would be the effect on the dissolution rate if a 1, 0g chunk were dissolved instead of 1.0 g of crushed salt?

Q: 2. How much heat is lost when a 640 g piece of copper cools from 375 °C, to 26

A: When a solid substance is cooling then heat is lost . It can be determined by the following formula-...

Q: A buffer is prepared using 0.15 M HF and 0.15 M NaF. What is the pH of this buffer? pKa for HF is 3....

A: Given :-   [HF] = 0.15 M  [NaF] = 0.15 M  pKa for HF = 3.1  To calculate :-  pH of buffer

Q: 2. For each of the following molecules, draw all possible mono-brominated products of an allylic bro...

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Q: 2. Balance the following redox equations by the ion-electron half-reaction method: (a) (acid soluti...

A: We will step by step balance redox reactions.

Q: 7. Nitrogen gas is produced in an automobile air bag. It is generated by the decomposition of sodium...

A: Reaction is given  2NaN3 (s) -----> 3N2 (g) + 2Na(s) since 2 moles of NaN3 Is required to produce...

Q: certain compound has an empirical formula of C2H6OSi and a molecular weight of 593.236 amu.  Determi...

A: Emperical formula is the simplest ratio of each constituent elements in molecular formula.  Molecula...

Q: A chemist needs to create a 50% HCI solution. (HCI is hydrochloric acid.A "50% HCI solution" contain...

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Q: n the mass spectrum the highest peak is known as the base peak is also considered as the parent peak...

A: ->In mass spectrum the parent peak is due to the compound there is no fragmentation .it's molecul...

Q: Predict the product and balance  redox reaction As2S3 + conc HNO3  =

A: The product of the reaction is, As2S3 + conc.HNO3→H3AsO4+H2SO4+NO2 ​       ​   ​  

Q: The pK value for HSO3 is 7.19. What mole ratio of K2SO3 to KHSO3 is needed to prepare a buffer with ...

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Q: AH = - 1.2 kcal/mol; Kp = 16 nM %3D OH 1 HO AH = - 6.0 kcal/mol; N. Kp = = 76 nM OH 2 करले HOl. AH =...

A: Biological macromolecules are involve in many reaction. Any organic drug is designed to bind with it...

Q: in analysis of copper, the cathode of hollow cathode lamp is a? -Zinc -Tungsten -Lead -Copper

A:                                 Answer in analysis of copper, the cathode of hollow cathode lamp is ...

Q: Here is a general reaction with a K value of 1.6x10^(-6): 2A (aq) + 3B (aq) ↔ 2C(aq) Initially, yo...

A: Given data : K = 1.6 × 10-6 Initial concentration of A = 1 M Initial concentration of B = 0.2 M

Q: Electrophilic addition of HI proceeds with the same mechanism as HCI and HBr. New methods for the hy...

A: At high temperature, addition of HI is thermodynamically controlled. Under thermodynamic condition 1...

Q: . Calculate the pH of a solution in which the con- centration of the piperidine is (a) 1.00 × 10-' M...

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Q: In the formation of 4-Chlorobenzhydrol, using the method shown below, I am trying to determine how m...

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Q: 2. A convenient way of converting hydroxide concentration to pH is -log 10-14 pH+ pOH -log 10-14 = p...

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Q: rsible Reactions ar Regression Analysis nod of Initial Rates lity of Rates tion Method osed Mechanis...

A: Rate law is experimentally determined law, According to this law, rate of a chemical reaction is dir...

Q: CH3CH2OH + CuO → CH3CHO + H2O + Cu If there are 1620 g of ethanol and 1020 g of CuO readily availab...

A: Mass of ethanol = 1620 g  Mass of CuO = 1020 g  Mass of acetaldehyde = ?  Mass of excess reactant = ...

Q: write T if underlined word is correct, if false, write the correct answer 1. Pyrolytic Carbon is...

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Q: For the mechanism provided below: a. Write the balanced equation for the overall reaction. b. Use th...

A: The rate law for a chemical reaction is an expression that provides a relationship between the rate ...

Q: For a 0.00554 mol sample of H2 and a 0.00912 mol sample of N2, total pressure is 23.44 torr. What is...

A: Given, moles of H2 = 0.00554 moles Moles of N2 = 0.00912 moles Total pressure, pT = 23.44 torr

Q: How do I work on this

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Q: 3 Fish remain active in a region that experiences pelow-rero Hemperatures in whter: hian Specific he...

A: Water is a universal solvent and the lifeline to the organisms present on earth. The properties of w...

Q: The recipe for Bananas Foster requires 35g of ethanol to be added to the pan. The ethanol starts at ...

A: Mass of ethanol = 35 g Initial temperature = 25oC Final temperature = 78o C Specific heat capacity o...

Q: using calomel electrode containing 1M kcl as a reference electode. and using two stock solution K3[F...

A: z in the nernst equation is the symbol for the change in number of electrons  or the number of elect...

Q: oxidation reaction cannot happen without a reduction reaction.  True or False?

A: The oxidation reaction can not occur without reduction if one substance losses electron then some su...

Q: Determine the mole fraction of C3H8O and H2O in a solution prepared by dissolving 15g of alcohol in ...

A: Given-> Weight of alcohol (C3H8O) = 15 gm Weight of H2O = 100 gm    

Q: The molecular weight of a gas that has a density of 6.75 g/L at STP is __________ g/mol.

A: At stp pressure is one atm

Q: Predict the product and balance redox reaction Solid cuprous sulfide is oxidized by hot conentrate...

A: In this question, we have to Predict the product and balance the redox reaction.

Q: Find the difference in the process of a) freezing and b) boiling at normal pressure.

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Q: Learning Goal: To understand how elementary steps make up a mechanism and how the rate law for an el...

A: Rate law is an mathematical expression that depicts how the rate of a reaction is dependent on the r...

Q: What part fo chromatography is being descibe by the following?                                     ...

A: These all are the terms used in the chromatography.

Q: For a CH,0 molecule, what is the internal energy predicted to be based on the classical approach for...

A: Internal energy (U)of a molecule is the energy it posses by virtue of its  Rotational state Vibrati...

Q: pler 14 - Kinetics Exercise 14.40 - Enhanced - with Feedback I Review | Constant MISSED THIS? Watch ...

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Q: The heater used in a 4.33 m x 3.60 m x 2.86 m dorm room uses the combustion of natural gas (primaril...

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Q: 4 If 0.50 mol of NO, is placed in a 2.0L flask to create NO and 02, calculate the equilibrium concen...

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Q: 1. When a 1.010-g sample of sucrose (C12H22011) is burned in a bomb calorimeter, the temperature ris...

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Q: What is the pH of a solution that is 0.32 M C2H;NH2 (ethylamine) and 0.35 M C2H5NH3 Br (ethylammoniu...

A: Henderson–Hasselbalch equation, POH = PKb + log [salt]/[base] and, PH + POH = 14

Q: Listen In an aqueous solution of ammonium nitrate, NH¼NO3, which intermolecular forces are present? ...

A: Intermolecular forces   Intramolecular forces are the forces that hold atoms together within a  mole...

Q: you chop out a 500 g sample of ice out of the Red River when it –40°C outside, then you bring the ic...

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Q: Over the course of a short race, a human releases 7.50 g of CO2. How many molecules of CO2 is this? ...

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Q: For both molecules: 1. Propose a set of reagents and conditions that would synthesize it. 2. Draw th...

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Q: Predict the product and balance  redox reaction MnO4 - +   HSO3-    =

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Q: A small amount of resin weighing 4.56g occupies a height of a 10-mL graduated cylinder equivalent to...

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Q: How do you call the small peak usually found at the the left of the moelcular ion peak in a mass spe...

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Q: What is the retention factor of a sample when after injectiion the void time (tM) took 4.18 sec? The...

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Q: 9.53 Using these reactions, find the standard enthalpy change for the formation of 1 mol of PbO(s) f...

A: From the given two reactions, firstly we have to find out the reaction of synthesis of PbO. From tha...

Q: 5(a) Use the standard reduction potentials at 25° C in Table 18.1 in Tro, Fridgen and Shaw, and calc...

A: Given,  Mn + Cd2+ → Mn2+ + Cd the standard emf E° of an electrochemical cell for the reaction is:

Q: Monochromatic light is light of one color, one frequency. If a monochromatic light beam is increased...

A: Answer: This question is based on the basic understanding of wave nature of matter where we have to ...