A student has a bad cut, what can you give to help them? O a. eye irritant O b. first aid kit Oc. evacuation route Od. fire blanket

Q: Provide an IUPAC name for the structure shown.

A: To write the IUPAC name for the given structure.,

Q: A chemist burns Al in excess air to produce aluminum oxide, Al2O3. She produces aluminum oxide. 4 Al...

A:

Q: Part A Calculate the standard cell potential for each of the following electrochemical cells. Standa...

A:

Q: IDENTIFY THE NUMBER OF ATOMS (CL, C, H, and F) in the Refrigerant Dichlorotetrafluoroethane

A:

Q: ΔGo

A:

Q: 1. For the data provided in the table below, use graph paper or spreadsheet software to plot (and pr...

A: Given the data regarding the concentration of ClO at different time. We need to draw the graph using...

Q: balloon is filled to a volume of 2.00 L with 3.50 moles of gas at 25 C. With pressure and temperatur...

A:

Q: The rate of a certain reaction is given by the following rate law: rate = k Use this information to ...

A:

Q: The barrier to rotation of chloroethane is 3.56 kcals/mol. Predict the energy of the rotational barr...

A:

Q: Which acid in each pair has the stronger conjugate base?   a. HI or HPO42−

A:

Q: The hydrogen ion concentration of a solution is 6.25x10-9 M. What is the pOH of the solution? Expres...

A:

Q: ayhamics For Practice 18.1 - Enhanced - with Feedback Part A Predict the sign of AS for each process...

A:

Q: 1°C NMR is less sensitive than H NMR because of the greater mass of carbon. True O False

A: 13C NMR : C-13 Nuclear Magnetic Resonance  1H NMR : Proton Nuclear Magnetic Resonance 

Q: Calculate the value of ΔGo in kJ for the combustion of 1 mole of methane to form carbon dioxide and ...

A: Thermodynamics is branch of chemistry in which deals with the amount of heat evolved or absorbed by ...

Q: Using the information provided along with an understanding of Hess's Law, determine the enthalpy of ...

A: Given- 4Fe+3Sn->2Fe2O3+3Sn.         ∆H=? 2Fe+1/2O2->Fe2O3.                      ∆H=-824.2kJ  S...

Q: s) +2C1,(g) – SnCI,0) AHin = -511.3 kJ/mol -2.45 Incorrect (g) + C,(g) → 2 HCI(g) AHin = -184.6 kJ/m...

A: As we know, for a chemical reaction,  □H = □E + □ngRT/1000 Where ,  □ng = change in gaseous moles R ...

Q: Fish-liver oil is a good source of vitamin A, which is measured spectrophotometrically, after correc...

A:

Q: The reaction 2A B is second order with a rate constant of 51.0/M min at 24°C. (a) Starting with [A]o...

A:

Q: What is the pH after addition of 30.0 mL KOH?

A: We need to calculate the pH for the titration, when 30 mL of 0.210 M KOH is added to the HClO soluti...

Q: What is the change in internal energy of the system? Exp

A: Given Q = 198 kJ            W = 120 kJ

Q: What are alums? Give examples other than potassium alum.

A: Double salts are the salts that dissociate into all its constituent ions completely. Example is Mohr...

Q: A sodium flame has a characteristic yellow color due to emissions of wavelength 566 nm. What is the ...

A: Given that  wavelength λ=566 nm =566×10-9m Energy of the photon can be find using the relation, E=hc...

Q: 5. Target Reaction: 20 H O(1) + 2H_O1) 2C H O)+ O 2 4 Step Reactions: 2 C2H60() + 302(g) → 2CO2(g) +...

A:

Q: Molecular weight MW 1. Find the MW of Iron(III) pyrophosphate. (Use whole numbers for each of its at...

A:

Q: Answer: Target Reaction: 1/2H (g) + 1/2Cl_(g) → HC(g) 9. COCl-(g) + H20(1) → CH2Cl2(1) + O2(g) 2HCI(...

A: Answer of the question given below,   

Q: -SO,Na H,C + HCl → ? + NANO2 → ? NaOH → ? + H,C

A:

Q: Predict how AG changes with increasing temperature for the reaction A(g) + B(g) - C(g). A) AG become...

A: The given reaction is  A(g) + B(g) => C (g)  and  ΔH = -201 KJ/mol ΔS = -189.2 J/mol-K

Q: -/1 E Question 6 of 8 Propose a plausible mechanism for the following transformation. For the mechan...

A:

Q: If 2083 Joules are used to melt 5.26 grams of aluminum, what is the heat of fusion of aluminum in J/...

A:

Q: The total synthesis pathway of 2-methy-D-erythritol is shown below. Draw a plausible mechanism for t...

A: We have to predict the mechanism for the transformation from structure 3 to 4.  

Q: write a complete set of equations (molecular, total ionic, and net ionic) for the reaction of iron (...

A: FeCl3 + NaOH -->  

Q: pause 1 sh alt fn ctrl 7. Target Reaction: co (g) - C(s) + 0 (g) H2O(1) → H2(g) +( 1/202(g)) CaHo(g)...

A: To solve this problem we will use the given thermochemical equation   

Q: Tetramethyl silane (TMS) is the only reference compound used to measure the chemical shifts of proto...

A: Spectroscopy is defined as branch of science in which interaction of electromagnetic radiations with...

Q: Consider the following unbalanced redox reaction. • Part A Cr203 (aq) + Cu (s) → Cr³+(ag) + Cu²+(aq)...

A: In a balanced chemical equation, the atoms of elements on both sides of the equation must be equal. 

Q: ΔΗ

A:

Q: Two adjacent thymidine residues in DNA can dimerize in the presence of UV light to form thymine dime...

A: The reaction mechanism for the formation of thymidine dimer by [2+2] cycloaddition reaction is neede...

Q: In the laboratory you dissolve 22.8 g of nickel(II) sulfate in a volumetric flask and add water to a...

A:

Q: i) Silver ion (Ag+) reacts with SCN- ion to form silver thiocyanate (AgSCN). What change will the st...

A: Le Chatelier's principle: The change in temperature, pressure, volume, concentration of an equilibri...

Q: (a) Complete the reaction equation with the correct chemical formula(e) for the product(s). (b) Writ...

A: Below are the Balanced chemical equation: 

Q: 4) What is the IUPAC name for this compound? CH3

A:

Q: At 961. K, ΔGo equals -77.2 kJ for the reaction, N2O4(g) ⇌ 2 NO2(g).   Calculate the value of  ln(...

A: The relationship between deltaG°(the free energy change) and K (the equilibrium constant) is express...

Q: Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction i...

A: Given data of the following--- Mass of water = 9.81 g, molar mass= 18 g mol-1 mass of CO2 = ?,molar ...

Q: Use the given K, values to predict which of the following salts is the most soluble, in terms of mol...

A:

Q: Period: pH pH Versus Hydronium lon Concentration 14 12 Bleach. Aqueous ammonia• Milk of magnesia• 10...

A:

Q: The XeO3 molecule displays approximately which bond angles (in degrees)about the central Xe? (Your a...

A:

Q: write a complete set of equations (molecular, total ionic, and net ionic) for the reaction of aqueou...

A:

Q: A voltaic cell consists of a Zn/Zn²+ half-cell and a Ni/Ni2+ half-cell at 25 °C. The initial concent...

A:

Q: Write the mechanism of ozonolysis and photo-oxidation.

A: We have to write the mechanism of Ozonolysis and Photo- oxidation reaction.

Q: What is meant by Alpha Orbital and Beta Orbital?

A: When ever we are specifying an electron it has four quantum numbers for gathering all information re...

Q: Which one of the following compounds would adsorb most strongly to silica gel? SCH3 Br CO2H A B E

A: compound that would adsorb most strongly to silica gel is given below

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.