AH = (is this reaction exothermic or endothermic?)

Q: using the following chemical reaction Mg+O2=MgO, 50.0 g of magnesium and 50.0 L of oxygen gas will…

A: from any Balanced chemical equation,  we easily determine how many moles of reactents are used and…

Q: For the reaction, 3 X=Y, If 1.5 moles of Y and 10.5 moles of X are introduced into a 3.00 L flask at…

A: Kc is known as equilibrium constant and it is equal to the ratio of equilibrium concentration of…

Q: 1.30. Determine the expressions for the following, assuming that the ideal gas law holds. an (27),…

A: Ideal Gas equation is given by:PV = nRTwhere, P is pressureV is Volumen is number of milesR is…

Q: The change in distribution of six gaseous particles between three interconnected containers is shown…

A: solution - Entropy- Entropy, the measure of a system's thermal energy per unit temperature that is…

Q: 9. At standard temperature (0°C), a carbon dioxide molecule travels at a speed of 159.5 m/s. Find…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: What happens to the average speed of gas molecules as the temperature increases? O Stays the same O…

A: Average speed of gas molecules = √(8RT)/(πM)

Q: 8. For Ausys to always be negative, what must be TRUE? A. q=w B. q> -w C. W> -q D -w>q

A: Answer: This question is based on first law of thermodynamics which gives us relation between ∆U, q…

Q: Based on the Free Energy versus Reaction Progress diagram below, answer the following questions.…

A: We are given the following diagram:

Q: BgHGG)+3029)- B2036) + 3H20G) AH=-2035 kJ What is AH when 10-0g 82H6 is.mixed with 10.0g 02 ?

A: Answer..

Q: molecule

A: there is a 98.2% chance that at least one of the molecules in your lungs came from Caesar's last…

Q: calculate literature delta H using the list of reaction provided?

A: To calculate literature ∆H for the reactions, we first need to write complete chemical equation .…

Q: 7-Which of Newton's Three Laws does the following statement satisfy? For every action there is an…

A: For every action there is equal and opposite reaction.

Q: the probability that a mole of perfume molecules expand from their open 100 ml diffuser into an…

A: Given, Volume of molecule initially = 100 ml Volume of molecule after expansion = 1L = 1000 ml…

Q: 1. Experimental Data Identity of the salt, a. Mass of salt [g] NaCl Trial 1 Trial 2 21.07 21.07 b.…

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

Q: Calculate the Kb value for CH3COO− Q28) Calculate the KbKb value for CN−.

A:

Q: Which one of the following would have the smallest value of Sº? A) Ne (g) B) O₂ (g) C) A mixture of…

A:

Q: 10. An unknown solution containing one of the salts ZnSO4, MgSO, or SrCl, gives a negative flame…

A: From given  Initially more and less active metals nature is discussed and then the unknown salt in…

Q: Given the returns and probabilities for the three possible states listed below, calculate the…

A: The expected value of stock A is 9.05% which is equivalent to E(A) = 0.0905 and the expected value…

Q: EN is infusing continuously at 50 ml/hr. A medication is started that requires the EN to be held 1…

A: EN is infusing continuously at 50 ml/hr.

Q: Mr. Naresh works in a multinational company. He is stressed due to his hectic schedule. Mr. Amit,…

A: The functions of mind and body would be affected by drugs. Several people take drugs for various…

Q: g0. Which of the following is NOT true of the Sc* ion? a) It has the same electron configuration as…

A: We know that, due to positive charge on atom, number of electron decreases. So,

Q: -1. The energy of some molecules has three values: 0, 300, and 600 cm presence of a gas consisting…

A:

Q: Draw the structural isomers of C2H4BrCl in a diagram. B. Determine which structural isomer has a…

A: We have to draw the structural isomers of C2H4BrCl in a diagram. And we also have to determine which…

Q: H₂C H. مال (EtO)P. ë OEt ?

A: Given reaction is witting reaction.  Aldehydes or ketones on reaction with phosphorus ylide gives…

Q: Determine whether w is positive or negative in each scenario. The system is underlined. Positive…

A: Answer:When work is done by the system then it is taken as negative and when work is done on the…

Q: A system contracts from an initial volume of 15.0 L to a final volume of 10.0 L under a constant…

A: Given:- V1 = 15LV2 = 10LP = 0.800 atmW=-P.AV

Q: N2(g) + 3H2(g)2NH3(g) + heat 1) Ammonia (NH3) is added. shift to the left 2) Nitrogen gas (N₂) is…

A:

Q: How did you get 298 K?

A: How temperature is 298 K?

Q: 4. Tests on the Oxygen Gas (a) Result of attempting to ignite oxygen (b) Result of inserting glowing…

A: Igniting a gas - igniting a gas means the gas is caused to catch fire by any means or fire is…

Q: 16. Sketch in a graph how the volume of an ideal gas (V, vertical coordinate) depends on its…

A: As we know that ideal gas equation  PV = nRT so if p and n are constant then we will be directly…

Q: What is an appropriate stepwise synthesis for the reaction shown? ...ОН + enantiomer 1. Br2, hv; 2.…

A: A reaction is a process by which the reactant is converted to the product. During this process,…

Q: Question 3 NH4CI (s) + heat NH3 (2) + HCI (3) a. adding NH4CI [Select] b. removing HCI [ Select] C.…

A: This reversible reaction goes forward or backward direction depends

Q: In the combustion of C5H8O2 what is the value of the slope expected for the following graphs: a. A…

A: Answer: Combustion reaction of acetyl acetone is shown below: C5H8O2(l)+6O2(g)→5CO2(g)+4H2O

Q: 3. a. A balloon filled with carbon dioxide falls to the ground but a balloon filled with He floats…

A:

Q: Can you rewrite question 6, again this is practice so can you rewrite the steps again! Thank you. (I…

A:

Q: what if the given condition is Q>kc with the same given

A: The direction in which the reaction proceeds to reach equilibrium can be predicted by determining…

Q: At a constant temperature, which of the gases will have the highest average kinetic energy?   A.…

A: To predict which of the given gas will have the highest average kinetic energy at a constant…

Q: Which one of the following reactions results in a positive AS sys?

A: Entropy is a measure of the randomness of the system. The entropy change in a chemical reaction can…

Q: 3. Gravimetric determination of chloride as AgCI Mass of ppt if peptization Mass of ppt if occlusion…

A: Given: Gravimetric determination of chloride as AgCl.

Q: Kw (at 0 K) is 2.00E-01.  What is the [H3O+]? Teacher gave the answer of 4.47E-01 but I don't…

A: We need to calculate the [H3O+]

Q: At a constant temperature, which of the gases will have the highest average kinetic energy? A) H₂ B)…

A: Average kinetic energy only depends upon temperature.It is directly proportional to temperature.

Q: 2. i. At 298 K and 1 atm, the value of n for chlorine gas is 132 micro Poise. Calculate the value of…

A:

Q: MCQ 50: In concentration of gases, the molecules are further apart due to the decrease in A. volume…

A: In concentration of gases, the molecule are further apart due to decrease in

Q: Part A Find AHxn for the following reaction: Use the following reactions with known AH values:…

A: When the coefficients in the chemical equation are multiplied or divided by a factor, the…

Q: a) What is the sign of AG°RXN? [ Select ] b) At what point on the diagram is AG = 0 kJ/mol? [ Select…

A: As per the rules, only the first three sub-parts of the question can be answered.

Q: What is the OT av U for a gas obeying P = nRT V -a (2) 2

A: The expression represents the rate of change of temperature with respect to volume at constant…