If a system absorbs 155.0 kJ of heat from its surroundings and the system does 95.0 kJ of work on its surroundings, what is the change in the internal energy of the system, in kJ?

Q: Complete Assignment M 5.3.1 Use a sheet of paper to answer the following question. When complete,…

A:

Q: A gas system has an initial pressure of 10.3 atm at a temp of 325 celcius. If the pressure increase…

A:

Q: •want top Procedure: Caution: do not change the order of addition given here. x15 Using a graduated…

A: SN1:  SN1stands for substitution nucleophilic unimolecular. SN1 reactions occurs by formation of…

Q: Classify the following molecule: H3C-C-CH₂CH3 acid aldehyde amine ketone carbonyl

A:

Q: Design a buffer that has a pH of 4.66 using one of the weak base/conjugate acid systems shown below.…

A: We have to calculate mass of weak acid and its chloride salt to prepare a buffer solution with pH…

Q: 1. For each of the solutions in part 3, calculate an expected pH. The Ka for HC₂H302 is: 1.8 x 10¹5…

A: We have find out the expected pH of solution. Note -as per our company guidelines we are supposed to…

Q: How many of each atom are there on the products side?

A: Given : balance reaction of combustion of ethanol Step 1: count the no. Of atoms in both side

Q: Making Rock Candy   Boil 0.25 L of water. Caution: Be sure to follow all safety precautions when…

A: It is very Clear that we are going to prepare saturated solution. Saturated solution :

Q: For the atom with Z = 6. a. The atomic symbol is b. The name of this atom is c. This atom is in…

A:

Q: Consider the titration Ba(OH)2 (aq) 1 2 HNO3 (aq) ➝ Ba(NO3)2 (aq) 1 2 H2O (l). The equivalence point…

A:

Q: Overall, the hydrolysis of ATP is an exergonic reaction…it has a net release of energy. Which of the…

A: As given in question also the hydrolysis of ATP is an exergonic reaction that is it has a net…

Q: Draw the major organic product of the reaction shown below. OH Na₂Cr₂O7 H₂SO4, H₂O

A: In the given question, the substrate is a primary alcohol and it is treated with reagent…

Q: Compound 41 is a colourless liquid with the chemical formula: C6H₁4O. Using this information, as…

A:

Q: How many mL of 2N H2CO3 are needed to neutralize 90 mL of 5N NaOH?

A: Given,    normality of H2CO3(N1) = 2 N           volume of H2CO3 = V1   normality of NaOH (N2) = 5N…

Q: J 5

A:

Q: Which among the following aqueous solution with the highest boiling point? 0.250 m of aluminum…

A: Boiling point is temperature at which vapor pressure of liquid become equal to atmospheric pressure.

Q: Which chosce best explains why the molecules below can be distinguished by IR Molecule A Molecule A…

A: The IR spectroscopy is used to determine the presence of different functional groups based on their…

Q: 3-pentanol reaction to HOCl

A:

Q: Find ∆Stotal (entropy change) when 100 grams of water vapor initially at 200 degrees Celsius…

A: ∆Stotal (entropy change) when 100 grams of water vapor initially at 200 degrees Celsius undergoes a…

Q: H₂C CH3 A) trans-2-butene B) 2-butene C) cis-2-butene D) trans-butene E) cis-butene

A: The IUPAC names of the given structures are

Q: The first few drops of the distillate called foreruns are discarded. This is a good practice because…

A: About foreruns: Forerun is a chemical substance that makes the indication of another substance's…

Q: Try Another Version 1 item attempt remaining

A: Molarity is defined as number of moles of absolute dissolved per liter of solution.

Q: 15.50g of NH4Cl reacts with an excess of AgNO3.How much more AgCl can be produced? NH4CL+ AgNO3 --->…

A: Given:  Weight of NH4Cl = 15.50 g Molar mass of NH4Cl = 53.5 g  Molar mass of AgCl = 143.32 g

Q: each case below select the synthetic procedure/s that could be used to carry out the transformation,…

A:

Q: In chemistry, the atom is the fundamental building block of chemical structures. Unique combinations…

A: Atom is a neutral i.e total positive charge is equal to total negative charge.  In an atom , atomic…

Q: Which of the following compounds would present a molecular ion peak at m/z = 107? HN N N N NH₂

A:

Q: Prednisone 30 mg every day by mouth is ordered. You have on hand prednisone liquid labeled 5mg/5ml.…

A: The number of teaspoon (tsp) can be calculated by the amount of dose and and amount in one tsp. It…

Q: The reaction of 890. g each of NH3 and O2 was found to produce 668 g of NO. 4 NH3(g) + 5 O₂(g) → 4…

A:

Q: A solution of 40ml containing 15 grams of sodium hydroxide is analyzed. a. What is the concentration…

A:

Q: A supplement was tested for iron content in a laboratory. First, a random sample of 10 tablets…

A: A question based on mole concept that is to be accomplished.

Q: How much of copper sulphate pentahydrate we need to prepare 0,5L 0,1 M solution?

A: Given, Molarity of the solution = 0.1 M = 0.1 mol/L Volume of the solution = 0.5 L mass (in grams)…

Q: A 0.5 g of a sample of an acid was dissolved in water and neutralized to 25 mL of 0.025 N NaOH.…

A: Mass of acid = 0.5 gram  Volume of acid = 25 ml = 0.025 litre  Normality = 0.025 N  To Calculate :…

Q: An alloy containing Ni, Fe and Cr was analyzed by a complexation titration using EDTA as titrant. A…

A: Given : Weight of sample = 0.7176 g For 50.0 ml Volume 1)26.14 mL of 0.05831 M EDTA 2)0.05831 M…

Q: A liquid boils at -321°F. What is its boiling point on the Kelvin scale? 77.17 77.2 -273 112 127…

A:

Q: Write the equilibrium expression for the reaction…

A:

Q: Devise a synthesis of (E)-3-octene using one of the starting materials and any of the reagents below…

A:

Q: Question The ratio of the ions in an ionic compound depends on the charges of the ions. The amount…

A: The compounds given in the table are all ionic compounds.

Q: Provide an IUPAC name for the structure shown. ball & stick - + labels (Use cis/trans terms for…

A: IUPAC :International Union of Pure and Applied Chemistry.

Q: For the decomposition of hydrogen iodide on a gold surface at 150 °C 2 HI(g) → H₂(g)+ 1₂ (9) - the…

A: The rate of a reaction is the ratio between the change in concentration with respect to change in…

Q: Synthesize each compound from acetylene. You may use any other organic or inorganic reagents. C.…

A:

Q: The distillation flask is best     completely filled with mixture   as large as available…

A: At the beginning of the distillation, the distillation pot should be between one-half full and…

Q: Complete the following tree of reactions by providing their major products: HCI i. BH3 ii. NaOH,…

A:

Q: lain this

A: If number of electrons are same for two atoms then their electronic configurations will  be same.…

Q: 28. The best explanation for the titration results represented by the following graph is 14 13 12 11…

A:

Q: Menthol, from oil of mint, has a characteristic odor. The compound contains only C, H, and O. If…

A: Given that, Weight of menthol = 89.6 mg = 0.0896 g Weight of CO2 = 252 mg = 0.252 g Weight of H2O =…

Q: 애 7 애 H2SO4 OH 애

A:

Q: How many Faraday is needed to deposit 5 moles of Gold (Au) from AuCl3 solution using electrolysis…

A: Faraday constant :The Faraday constant is defined as charge on 1 mole of electron.

Q: Part A H₂C. CH₂ 'H H₂C Draw the molecule on the canvas by choosing buttons from the Tools (for bonds…

A:

Q: important values if needed for this question. For the decomposition of hydrogen lodide on a gold…

A: We have to calculate the rate of formation of I2

Q: If Magnesium hydroxide is a white gelatinous precipitate, why is the confirmatory result indicated a…

A: Confirmatory Test of Mg2+ 1. For the test of Mg2+ , In a sample of Mg2+ solution, 2 drops of…