1. A gas expands in volume and does P-V work on the surroundings equal to 325 J. At the same time, it absorbs 127 J of heat from the surroundings. Calculate the change in energy of the gas.

Q: 29. What is the Ka and K» for HPO,??

A: Ka is the acid dissociation constant. It is a measure of how completely an acid dissociates into its…

Q: The type of light that can be emitted when one electron orbiting a hydrogen atom drops down in its…

A: Bohr's theory explain the emission spectra of hydrogen atom.

Q: Ka for HF is 6.8 x10-4. Calculate Kb, for F-? a)1.5x 10-11 b)6.8x 10-10 c)6.8x 10-18 d) 6.8x 10-10…

A: We know that -  Ka×Kb = 10-14

Q: an evacuate the concentrations of H2 and I, are both 2.0 M and that of HI equals 8.0 M. H2(g) + 2(g)…

A: The equilibrium reaction is: H2(g) + I2(g) ⇌ 2HIg Given that the initial concentrations of H2 and I2…

Q: Which of the following values are variables in the Beer-Lambert Law equation? Select one or more:…

A: The Beer Lambert Law states that for a given sample, path length, l and concentration, c are…

Q: 3. Describe how AS and AH° will be calculated from a plot of In(Ksp) vs. (1/T).

A: Gibbs free energy can be expressed in terms of Ksp of a salt. The expression is as follows:…

Q: PLEASE DO A B AND C THANK YOU SOOO MUCH!!!!!!!!

A: Lambert Beer law states that absorbance of a substance is directly proportional to concentration of…

Q: Given the following data: N2H4(1) + CH4O(1) CH2O(g) + N2(g) + 3H2(g) Part A) N2(g) + 3H2(g) →…

A:

Q: Select the best answer. HO. EtN b.) R R d.) R. R

A: Since acyl  chloride is more reactive towards Nucleophilic addition reaction, it can be converted…

Q: Draw a structural formula for the major organic product(s) of the reaction shown below. 1. CH31…

A: Since there are multiple questions, we will answer only one, that is, the first one. If you require…

Q: Station 3: Hydrogen Peroxide (H202) and Yeast 1. Clean your small graduated cylinder by rinsing with…

A: Yeast is used in Bakery and fermentation  process and  called Baker Yeast.

Q: Neon lights have different colors because each color comes from each different gas' _______________.…

A: Neon lights are tubes that are filled with inert gases e.g. neon.

Q: What is the absolute configuration of the compound below? A picture containing text, clock…

A:

Q: Construct a graph corresponding to the linear equation y=2r -6

A: The linear equation is y = 2r - 6 or y(x) = 2x - 6  We can plot the linear equation by taking a…

Q: please answer this and show you're work for each question in order. thanks:)

A: Hello. Since the question contains more than three sub-parts, the first three sub-parts shall only…

Q: a. Use a chemical reaction to explain how aqueous ammonia can create a basic solution. (^- Kb for…

A: Answer:-This question is answered by using the simple concept of basic nature of weak bases using…

Q: whats the longhand and shorthand configuration

A: The electronic configuration of an element gives the outline of the electrons' distribution in…

Q: Chemisu y I LaDoluur) The following data were collected at 640 nm for a certain food coloring agent.…

A: According to Lambert Beer law, absorbance (A) of a solution is directly proportional to…

Q: Concentration .020 M .040 M .080 M .120 M unknown Transmittance .695 .483 .233 .113 .316 Between .03…

A: Beer's law states that the absorbance of a solution is directly proportional to the concentration of…

Q: A wave has an energy of 4.31 x 10-17J. What is a. 6.50 x 1016 Ob. 6,95 x 1024 OC. 1.54 x 10-17 Od.…

A: The mathematical relation between the frequency (n) and energy (E) of a wave is given, as shown…

Q: b. (See section 10.4) c. (See section 5.14) OH Br₂ light PBr3

A: The given reactions are substitution reactions in which one atom or group of atoms is replaced by…

Q: 1. Using the graphs of the food dyes created from your data, use the Imax to determine the amount of…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Do you have any clues on it???

A: The aldehyde and ketones containing alpha-H-atom react with halogens to form alpha-halocarbonyl…

Q: Think about the situation where you are investigating the relationship of study time vs. exam grade.…

A: Few questions about data interpretation, which is to be accomplished.

Q: 11. Identify the following electron transport intermediate. A. the superoxide free radical B.…

A: There are various intermediates like carbocation, carboanion, carbene,  nitrene etc.  Intermediates…

Q: 1. What is the basic difference of the Zeemann effect and the Stark effect? 2. State an application…

A: Question 1 --> A major difference between the Zeeman effect and the Stark effect is that in the…

Q: Rank the following correlation coefficients (r) in order of their strength from strongest to…

A: The Correlation takes values between -1 to 1 both inclusive. Now the more the value of Correlation…

Q: Which layer was the ether layer in the simulator?  NB: ether is shorthand for diethyl ether.…

A: Ether is organic solvent.  And has less density than water that's why it floats on the water. So,…