A sample of Zn metal is allowed to react completely with an excess of HCI: ZnCl (aq) Zn e + 2HCI H2 (9) The H, gas produced was collected over water at 25.0 °C. The volume of Choose.. the gas is 4.35L, and the atmospheric pressure is 0.980 atm. Calculate the mass of Zn metal in (g) consumed in the reaction. ( given: vapor pressure of water at 25.0 °C = 23.8 mmHg ) A sample of 2.00 g of a vapor occupies 0.559 L at 97 °C and 0.967 atm. Calculate the molar mass of the Choose... compound The density of gas is found to be 1.084 g/L at 720 mmHg and 25 °C. the molar mass of this gas is Choose...

Q: 4.22L of F2 @STP has how many molecules ? round answer to 2 decimal places.

A: Given       Volume of gas (V) = 4.22L         The volume of gas at STP occupy            V = 22.4L…

Q: Compare columns I and II, and write A if the value in column I is greater than in II B if the value…

A:

Q: с. OH OH HN

A:

Q: The correct coefficients for the unbalanced equation below are: PCI 3 + H 2 O ---> H3 PO 3 + HCI О…

A:

Q: The guest list included 170 people who were invited, but 102 people showed up. What is the percent…

A: Given Data: Total Number of People = 170 Number of People Showed Up = 102

Q: Which element in the periodic table has an specific heat of 0.099 with the lowest percentage error

A: Specific heat capacity of any substance is the amount of heat energy required to raise the…

Q: a) Convert 100 Btu to kcal b) Convert 100 hp to kW

A: In this question we need to use the conversion factor to convert the unit to the desired unit.  Btu…

Q: What is sampling error? a ) The difference between a sample statistic and the population parameter…

A: Sampling error is a kind of discrepancy or difference that occurs between the sample statistic (like…

Q: -3.57 was an incorrect answer for this. Please mark final answer and povide correct answer

A: A 1.00 M solution of CsI was electrolyzed using the inert electrodes. We are required t find out the…

Q: The guest list included 175 people who were invited, but 106 people showed up. Wh is the percent…

A: The percentage yield here will be defined by the. Formula = (number of people showed up/ no of…

Q: CI AICI,

A: This reaction is an example of Friedel-craft alkylation of benzene in which benzene on treatment…

Q: A. H B. —EN:

A: The orbital overlap pictures of the two organic compounds are given below. The bond angles are given…

Q: Calculate the number of grams in one mole of Ca Soy. 7 Hz0

A: Given  Number of mole of CaSO4.7H2O    = 1 mole  mass of CaSO4.7H2O                      = ?

Q: Why we don't have to divide ± 0.015 g?

A: In this question, we have to answer related to the preceding question.

Q: 3. Ferric Chloride Test 4. Bromine test

A: These are some primary test to identify different functional groups. These tests can performed in…

Q: tl e tl a

A: Given the equation of the calibration curve, Y = 0.035x + 0.0148, and the absorbance values,…

Q: How do you now N2 has coefficient of ONE ? because it has a subscript of 2 because it is a…

A: Generally  first we write a balanced  chemical  reaction  .

Q: Evaluate the following expressions. Impose the rules for significant figures different ways for the…

A: Significant figures of value determine the precision and accuracy of a calculation. When expressing…

Q: Ka value of Alluminium nitrate

A: AlNO33 is a salt of weak base and strong acid. It dissociates in solution as follows: Al(NO3)3…

Q: Analytical chemist from Petroleum Development Oman extracted petroleum from crude oil and measured…

A: Please have a look on the solution:

Q: resource from Cengage Learning PT ALLOWED Submit Submit Answer E Course Home CHEMWORK Alexander…

A: Given,  The chemical formula of penicillin: C16H18N2O4S :

Q: the balanced equatun Using 06 +603 et gram3 Hy O produad oF findthe number from 220g of Cate Oc

A: The given balanced reaction is  C6H12O6 + 6O2  -- > 6CO2 + 6H2O This shows that one mole of…

Q: 1. 3M9CI, Coefficient: Subscript for Mg: Subscript for Cl: 2. V205 Coefficient: Subscript for v:…

A: Interpretation -  To write the coefficient and subscript of the given following compounds -…

Q: Which of the following is NOT a measure of central tendency? a) Mean b) Median c) Variance d) Mode

A: Let us assess each options provided: • Option a is a measure of central tendency because mean…

Q: How can i make the answer have less significant figures and what would the asnwer be?

A: Significant figures marks the accuracy for a certain measurement. Significant figures follows…

Q: A student dissolves 14.2 g of ammonium chloride (NH4Cl) in 200. g of water in a well-insulated open…

A:

Q: భారతశ్శిం ం YouTube Maps News 0 Friend Requests PlatformManageme... Sy solve for x, 5/(x+1 6.82 The…

A:

Q: None

A: Step 1:(34.123+8.60)/(98.7654−5.652) =(42.723)/(93.1134)=0.45882762309184  I Step 2: Step 3: Step 4:

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: For the standard equation, shouldn't it be  (0.97-1.09) and so on... because (x-mean)

A: The general equation to find the standard deviation is: ∑i=2n(Xi-μ)2Nwhere Xi = Experimental valuesμ…

Q: How do you find the delta Hrxn in J/mol?

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

Q: Use significant figure to find (((66.456 + 5.46895) * 7.001) -220.04) 3)? Answer:

A: Significant figures are equal to the number of digits which is equal to the approximation.…

Q: Regarding the Analytical balance; which of the following statements is incorrect: 1. OThe balance…

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

Q: Perform the calculation and record the answer with the correct number of significant figures.…

A: We have been given a calculation and we have been asked to perform given calculation and record the…

Q: The guest list included 179 people who were invited, but 81 people showed up. What is the percent…

A: Given: Actual = 81 And theoretical = 179

Q: Cancel RESET The Ka of hydrofluoric acid, HF, is 7.1 x 10-4. Calculate the Kb of the fluoride ion,…

A: Answer of the given question is given in below section.Explanation:Step 1:

Q: where did 0.693 come from

A:

Q: 2) Perform the calculation below (Equation 1) to the correct number of significant figures? (Show…

A:

Q: From Experiment Correct Value % error Cs,metal |(J/goC) 0.2335 0.400

A: The given data is :

Q: A geologist measures the height of a mountain. The height is 3.6089 km. What is the height in…

A: We will use unit conversion to find answer.

Q: General Formula of Hydrate= Heating # 0 1 23 2 3 45 4 5 Empty Crucible (g) 15.5525 15.5391 15.5377…

A: General formula of hydrate is given to be MgSO4.xH2O . Through all the calculations , we have to…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.