A mixture of krypton and hydrogen gas is expanded from a volume of 28.0 L to a volume of 39.0 L, while the pressure is held constant at 41.0 atm. Calculate the work done on the gas mixture. Be sure your answer has the correct sign (positive or negative) and the correct number of significant digits.

Q: H3O* CIF3 PF5

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Q: In the PHET simulation window, click the Introduction menu at the bottom of the screen. Click on the...

A: The formula used here is, pH = -log[H+] = -log[H3O+]  pOH = -log[OH-] Where, [H+] and [H3O+] - hydro...

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A: In these example ester is convert into aldehyde .     

Q: Question 1. Creep. Using this LMP figure for S590 (Fe-21Cr-20Ni-20Co-4W-4Mo-4Nb-1.25Mn-0.4Si- 0.43C)...

A: Answer- Data given- Pressure = 200 Mpa T = 8000C = 273 + 800 = 1073K To find-rupture time ?

Q: y seconds da

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Q: QUESTION 14 Which of the following E,Z designations are correct? Mark all correct answers. CO-H {Z} ...

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Q: III. In each of the given compounds, identify the protons that are chemically equivalent by encircli...

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A: A question based on introduction to organic chemistry that is to be accomplished.

Q: classify the following substances as either colloidal or true solution-sized particles. - glucouse ...

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Q: Use Hammond's postulate to determine which alkene in each pair would be expected to form a carbocati...

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Q: QUESTION 9 Which of the following alkenes yield(s) 3-bromo-3-methylpentane as the major product upon...

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Q: A alkaloid compound contains 74.02% C, 8.710% H and 17.27% N. The empirical formula of the compound ...

A: Given:  Weight % of carbon = 74.02 %  Weight% of hydrogen = 8.710 %  Weight % of nitrogen = 17.27 % ...

Q: alculate: c. Total number of ions in 5.82 g of SrH2 d. Mass in mg of 2.88 x 10 22 formula units of ...

A: c)  No. of ions in 5.82 g of SrH2                Molar mass of SrH2 = 89.64 g/mol                5.8...

Q: QUESTION 11 How would you carry out the following conversion? ECH2 HOH O (1) H20, H2SO4/H9SO4; (2) H...

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Q: Br F Na OMe O2N

A: Mechanism of aromatic nucleophilic substitution reaction: 

Q: A 0.100 mol L- solution of ethylamine (C2H5NH2) has a pH of 11.87. Calculate the Kp for ethylamine. ...

A: Ethylamine is a weak base . A weak base is partially dissociated in water. And the pOH can be found ...

Q: QUESTION 4 Which of the following is much more acidic?

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Q: 2. What can be done to an ionic solid so that the ions are capable of motion?

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Q: Prove the relationship

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A: Given,  Methyl tert-butyl ether,  Chemical formula: CH3OC(CH3)3 24.7 moles of hydrogen. 

Q: Calculate the molar concentration of OH− ions in a 0.077 M solution of ethylamine (C2H5NH2; Kb=6.4x1...

A: Given, Concentration of the ethylamine solution (C) = 0.077 M Kb for ethylamine (C2H5NH2) = 6.4x10-4...

Q: Choose the correct IUPAC name for the following compound Methylhexane 4, 4-dimethylhexane 3,3-dimeth...

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Q: From pyridine and any other organic or inorganic reagent synthesize the following molecule

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Q: The concentration of glucose in an aqueous solution can be determined by oxidation with ferricyanide...

A: Given Glucose mg/ml Absorbance 5 0.132 10 0.290 20 0.498 30 0.642 40 0.750

Q: Part A eous een What is the H+ concentration for an aqueous solution with pOH = 2.73 at 25 °C? Expre...

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Q: change in enthalpy

A: In this question we have to explain the relationship between the change in enthalpy for the reaction...

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Q: 1. a) When magnesium forms a compound with oxygen, electrons are transferred from the atom to the at...

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Q: What is used as basis for the better arrangement of elements in the periodic table and the key to th...

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Q: QUESTION 5 Compound A has the formula C8H8. It reacts rapidly with KMNO4 to give CO2 and a carboxyli...

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Q: REACTION WITH SODIUM 1. Place 2 mL of each of the following alcohols in separate dry test tubes: eth...

A: The reaction are as follows:  

Q: Hydrogen chloride and oxygen react to form water and chlorine, like this: 4HCI(g)+O,(8) 2H,0(g)+2Cl,...

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Q: Calculate the pH of a mixture that contains 0.23 M of HCNO and 0.16 M of HBrO. The ?a of HCNO is 3.5...

A: Concentration of HCNO = 0.23M Concentration of HBrO = 0.16M Ka of HCNO = 3.5×10-4 Ka of HBrO = 2.8×1...

Q: QUESTION 13 Which of the following statements is correctly labeled as true or false? Choose all corr...

A: Question needed to be answered is 13. In alkynes the triple bonded carbon atom undergo sp hybridizat...

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Q: what is the relationship of sulfur dioxide to temperature and  sulfur dioxide to humidity

A: A question based on general chemistry that is to be accomplished.

Q: TION 8 Which of the following is the major organic product in the reaction sequence? 1. CH;CH-MGCI d...

A: Aldehyde reacts with Grignard reagent to give alcohol. 

Q: C. Draw the chemical structure of the following: 11. bromocyclobutane 12. propylcyclohexane 13. fluo...

A: Given compounds: bromocyclobutane propylcyclohexane fluorocyclopentane 5-fluoro-7-methylcyclooctane...

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Q: For each of the following chemical reactions, provide the following three items: (1) the chemical fo...

A: Here we have to predict the types of reactions and chemical formulas and state of reactants and prod...

Q: Data and Observations Percent phenol in liquefied phenol: 91% Weight of product: 0.76g Melting point...

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Q: Consider a 3.570 g sample of C4H10. How many molecules are in this sample?

A:                                     Mass of C4H10 = 3.570 g       Molecular mass of butane (C4H10)= ...

Q: How does the boiling point change as the formula mass of compound increases?

A: To solve this problem we have to know about boiling point of organic compounds. 

Q: A mixture of nitrogen and neon gas is expanded from a volume of 31.0 L to a volume of 79.0 L, while ...

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Q: QUESTION 12 Which of the following reactions are correct? There may be more than one correct answer ...

A: Alkyne Shows acid base reaction because  their terminal  Hydrogen Are acidic .

Q: Classify each of the following as being characteristic of effusion or diffusion. A. The mixing of tw...

A: Diffusion starts when gases dispersed throughout a container. Effusion occur when a gas passes throu...

Q: Which of the following statements is correct?  A. The rate of a reaction decreases with passage of ...

A: Rate of a reaction is expressed either in terms of rate of disappearance of reactants or rate of app...

Q: ESTION 2 the addition of hydrogen bromide to alkynes in the absence of peroxides, which of the follo...

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Q: (a) For a sample of gas at constant temperature, its pressure multiplied by its volume is a constant...

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Q: 49. Initial velocity is used to study enzyme kinetics because A. The substrate concentration increas...

A: Initial velocity is it used to study enzyme Kinetics because as the reaction proceed the substrate o...