A system takes in 0.430 kJ of heat while it does 0.830 kJ of work on the surroundings. What is the change in internal energy of the system?

Q: In the best Lewis structure of OCI2 , around the oxygen there are and O 6 bonding pairs and 2 lone…

A: In this question we have to tell the bonding pairs and the lone pairs around the oxygen atom.

Q: (5) (1) Source (2) (4) 150 Wavelength selector Detector What type of spectroscopy is shown in the…

A: This question is based on spectroscopy .

Q: 64.27% carbon, 7.19% hydrogen, and 28.54% oxygen: experimental molar mass 168.19 g/mol

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Q: 3. Provide the product resulting from the following reaction. H3C- HO. EtgN CH3 CI

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Q: 1.) A mixture of oxygen,carbon dioxide and nitrogen has a total pressure of 0.97atm. What is the…

A: Here we are required to find the partial pressure of gas

Q: What is the mass percent (m/m) of NaCl in a solution made by dissolving 5.16 g of NaCl in 79.9 g of…

A: Since, you have multiple questions so I will solved first question for you please post separately…

Q: Which statement is TRUE in explaining the characteristic of cobalamin? O a. All of the answers are…

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Q: Which of the following plates represents the course of the reaction from beginning to end, assuming…

A: In TLC, higher the polarity of a compound, higher are its interactions with the stationary phase.

Q: In the following molecule, what is the value the angle indicated in RED? angle? :c : O approximately…

A: Given structure is :  Options are :

Q: Calculate the ionic strength of a solution that is 0.15 mol kg-1 in KCI(aq) and 0.30 mol kg-1 in…

A: Given: Molality of KCl = 0.15 mol kg-1 Molality of  CuSO4 = 0.30 mol kg-1

Q: will addition of 300ml 0.005M agno3 to 200ml of 0.004M Al2(SO4)3 result in oreciptation of Ag2SO4 if…

A: Given,  Volume of AgNO3 in mL = 300 mL  Molarity of AgNO3 = 0.005 M  Volume of Al2(SO4)3 = 200 mL…

Q: For each of the following statements, answer TRUE or FALSE and explain your answer briefly.   It…

A: True Potassium Dichromate solutions (235 - 430 nm)The most widely recognised reference material for…

Q: docs.google.com Which of the following is not a valid resonance structure for N3-? (V EN=N- v [一ド三司…

A: The electronic configuration of a vanadium atom is 1s2 2s2 2p6 3s2 3p6 4s2 3d3.

Q: For the following reaction identify the acid, base, conjugate acid and conjugate base. NaOH H20 Na I…

A: A species which donate a proton (H+) is known as acid and a species which accept a proton (H+) is as…

Q: Identify the oxidation state for vanadium in [VO(H2O)sl*. O +4 C+2 O +3 C o C+5 C +1

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Q: Name the pre-requisite important to successfully isolate a protein with the help of the Immobilized…

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Q: Match the correct statement to the half reaction that indicates whether it is oxidation or reduction…

A: Corrosion is a two step process involving 2 reactions i.e. oxidation reaction and reduction…

Q: 2. The decomposition of N205 (2 N2O5 → 4 NO2 + O2) was carried out at several different…

A: Recall the given reaction,              2 N2O5  →  4 NO2  +  O2We have to calculate the activation…

Q: 1. Lithium is bonded to a certain anion. If the bond is 89.5% ionic, what is the anion? 2. Determine…

A: 1. the anion is a Fluoride ion and the compound is LiF because the electronegativity of Fluorine is…

Q: What would the quality of the line-fit (R² value) be if you do not exclude experimental outliers?…

A: In statistics, an experimental outlier is a data point originated due to experimental errors which…

Q: Answer the following questions by circling the most correct answ owing .. The relationship between…

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Q: 1 Point In gravimetric determination of sulfate present in the soil, 0.2075g of sample was treated…

A: BaCl2 (aq) + SO4-2 (aq)  → BaSO4(s)

Q: Determine the equilibrium constant, K. for the following process: 2A + B 2C [Aleg [Bleg = 0.0292…

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Q: The pH of the human blood is mainly regulated by O a. the phosphate buffering system. O b. a protein…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 1) 2 CH3MgBr 1) CH,MgBr Y Co,CH3 2) H20, HCI 2) Н,О, НCI

A: Given,

Q: What is the binding energy (in Joule per nucleon) of 60Ni? Given 60Ni = 59.9308 amu, 1 electron =…

A: Given , Element : N60i

Q: According to the following balanced equation and using the correct number of significant figures,…

A: Number of moles is calculated by dividing the given mass with molecular mass.

Q: 1/3 * w lf you know that the acidity function is 3.6 for a buffer solution consisting of 0.7M formic…

A: Answer: Buffer solution is a type of solution that resists the change in its pH on adding small…

Q: HO

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Q: Draw 2 enol forms of the following diketone.

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Q: Calculate the mass of XCI, that can be dissolved in 923.4 mL of a solution. Molar mass of XCI, =…

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Q: The preparations of two aqueous solutions are described in the table below. For each solution, write…

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Q: Iodine-131 is radioactive and has a half life of 8.04 days. Calculate the activity of a s.8 mg…

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Q: Half a milliliter of concentrated HCI (6) with a density of 1.18 g/ml was taken and diluted to 2…

A: Given,  Volume of HCl in mL = V1 = 0.5 mL  Density of solution = 1.18 g/mL  This solution of HCl is…

Q: In the best Lewis structure of OCI2, around the oxygen there are and O 4 bonding pairs and zero lone…

A: Note: As per our guidelines, we are supposed to answer only one question when multiple questions are…

Q: Questic In gravimetric determination of sulfate present in the soil, 0.2075g of sample was treated…

A:

Q: ottowing inteomdiakea Dorau the व) मेश दपनम। Cवहbasयन्र (०न्मतेवा ड्लेक) (6) চo0mn ton लि्लनर बकट…

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Q: The following fictitious unbalanced REDOX reaction is made of some teachers initials and some oxygen…

A: The given redox reaction is H3PjO3   + TsO4-  → H3PjO4  + Ts2+

Q: Write the name for [MNCI(H20)(NH3)]NO3. C amminetetraaquachloronitratomanganese (I1) C…

A: IUPAC name of the complex  [MnCl(H2O)4(NH3)]NO3  is ....

Q: The skeleton of the bicarbonate ion, HCO, , is shown here. Draw the complete structure. Add…

A: Formal charge =  valence e- - unbonded e- - 1/2 bonded e-

Q: The change in Gibbs' free energy is also considered a measure of the additional work that a system…

A: Given statement is :  The change in Gibbs free energy is also considered a measure of the additional…

Q: What is the name of this functional group? R R O ester alkyne aldehyde ether O amide O alkane O…

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Q: Provide the product resulting from the following reaction. ??? CI A. HCI B. SOCI, pyridne

A: Note: As per our guidelines, we are supposed to answer only one question when multiple questions are…

Q: Prelaboratory Questions Name Laboratory Section Show your work, include units, and report the…

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Q: What is the percentage of ionization of 0.1 mo of formic acid (HCOOH)^5 . If you know that the value…

A: Given: Concentration of HCOOH = 0.10 M

Q: 16. Provide the product resulting from the following reaction. он Cl2, H20

A: In this question we have to tell the product of the reaction.

Q: Question 8: Identify all of the functional groups that are present in the final product shown methyl…

A: Given reaction is :  Identify all the functional groups that are present in the final product  a).…

Q: Could someone please help me with these chemical reaction balance equations?  1. (combustion) C3H8…

A: Combustion reaction: It is a reaction in which the substance reacts with oxygen to form carbon…

Q: Question 12: Which of the following are uses of TLC? to determine purity of the product to determine…

A: TLC :- TLC is a chromatography technique called Thin-layer chromatography used in qualitative and…

Q: The change in entropy, ASxn, is related to the the change in the number of moles of gas molecules,…

A: