A chemist decomposes samples of serveral compounds; the masses of their constituent elements are listed. Calculate the empirical formula for each compound show work? a. 1.651 g Ag, 0.1224g O b. 0.672 g Co, 0.569 g As, 0.486g O c. 1.443g Se, 5.841g Br

Q: What is the ΔSo for the combustion reaction of ammonia NH3(g) to nitrogen dioxide NO2(g) and water…

A:

Q: Write the overall reaction for the reaction of concentrated sulfuric acid and solid sodium chloride.…

A: Interpretation: We have to write overall reaction.

Q: Chlorine monofluoride can react with fluorine to form chlorine trifluoride:(i) ClF(g) + F2(g) ⟶…

A:

Q: n unknown amount of propane Fuel having a chemical formula C3H8 is burned with an unknown amount of…

A: Complete Combustion is the oxidation of hydrocarbon producing only carbon dioxide and water.…

Q: Many home barbeques are fueled with propane gas (C3H8). Whatmass of carbon dioxide (in kg) forms…

A: In combustion reaction, a chemical compound reacts with an oxidizing agent mostly oxygen and form…

Q: H. meye ment in Natu molenla and thus it i polan in nature . 11. When someone is injured, responding…

A: Precipitate of PbCl2  will be formed.

Q: Consider these reactions: Reaction 1: H2 (g) + Cl2 (g) → 2HC1(g) AH = -184.6 kJ Reaction 2: 20F2 (g)…

A: -> If ∆H =+ve => reaction is endothermic reaction. -> if ∆H = -ve => reaction is…

Q: What is ΔH°rxn for the following reaction? NO2(g) + CO(g) → CO2(g) + NO(g) Substance…

A:

Q: Given these reactions, X(s)+1/2O2(g)⟶XO(s)                 Δ?=−887.7kJ/mol XCO3(s)⟶XO(s)+CO2(g)…

A: X(s)+1/2O2(g)    ⟶    XO(s)                                          ΔH1=−887.7kJ/mol…

Q: 2. a) Write a formation equation for CaS04 including states and a AH term after the equation. b)…

A:

Q: Propane camping stoves produce heat by the combustionof gaseous propane (C3H8). Balance the skeletal…

A: Balanced chemical equation: A chemical reaction in which the number of atoms of each elements on the…

Q: 19. 1.056 g of a metal carbonate MCO;(s), containing an unknown metal M, were heated to give the…

A: Given: The mass of metal carbonate is 1.056 g. The mass of carbon dioxide is 0.376 g.

Q: Determine the amount of heat (in kJ) associated with the production of 1.76 × 104 g of NO2 according…

A: Molar mass of nitrogen dioxide is 46 g/mol

Q: Consider the reaction: ICI(g) + Cl2(g) → ICl;(s). The AG(f)° of ICI(g) is -5.5 kJ/mol and the AG(f)°…

A: Given, ICl (g) + Cl2(g) ---> ICl3 (s)  ∆G°f ( ICl) = -5.5 kj/mol ∆G°f (ICl3) = -22.59 kj/mol…

Q: A classic chemistry class demonstration is the burning of magnesium ribbon with a Bunsen burner. In…

A: Yes, Option  D would be the right answer .

Q: Calculate for the theoretical yield of boric acid (MW: 61.81 g/mol) that will be obtained from 45 g…

A:

Q: (a) Write the chemical equation for the formation of 1 mole of ethanol from its elements. Include…

A: The elements included in the formation of ethanol are carbon, hydrogen and oxygen.  Carbon is solid…

Q: On what law is stoichometry based, and how do thecalculations support this law?

A: Stoichiometry is the branch of chemistry that deals with the mass of various reactants and various…

Q: Substance S (J/mol-K) H2(g) 130.6 O2(g) 205.0 H2O(g) 188.7

A:

Q: Br (a) H. and Br CH, and "Br Br CH, Br. (e) and

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

Q: Which one of the following reactions would produce the largest amount of heat per mole of hydrogen?…

A: Given(A) C(s) +2H2(g)→CH4(g) , ∆H°=-74.9 kJ/mole ....(1)(B) N2O(g)+3H2(g) →N2H4(g)+H2O(l) ,…

Q: oefficients will balance the reaction in the pictured: __Al + ___HCI ---> ___AlCl3 + ___

A: Balancing the equations occurs in such a way that there is an equal number of atoms on both sides.…

Q: How much energy is released in the formation of 612 g of PCl3 (137.32 g/mol), according to the…

A: From the given reaction we can say that when 4 moles of PCl3 is formed, energy released in the…

Q: Name Formula Number of Work for Molar mass each type of atom molar mass Antimony tribromide SBBR3 2…

A: Name Formula Number of type of atom Work for molar mass Molar mass 1 Antimony Tribromide SbBr3…

Q: Ipy of the reaction: N2 (g) + O2 (g) → 2NO (g), given the following reaction N2 (g) + 202 (g) → 2NO2…

A: Given : We have to calculate the enthalpy of given reaction.

Q: 1. Consider the equation:S+302 SO3 (a) Is this equation balanced? Why or why not? (b) If it is not…

A: Given reaction is a redox reaction . Loss of electrons is oxidation .gain of electrons is reduction.…

Q: Titanium is a strong, slightly corrosion resistant metal and is used in rockets, airplanes, jet…

A: Molar mass of Ti=47.86g/mol given mass of Ti=791×106g Molar mass of Mg=24.305g/mol Given mass of…

Q: Methanol, CH3OHCH3OH , is formed from methane and water in a two‑step process.   Step 1:Step…

A:

Q: The thermite reaction,Fe2O3 + Al S Al2O3 + Feproduces so much heat that the Fe product melts. This…

A: a) The balance chemical equation for the thermite reaction is - Fe2O3 (s) + 2Al(s) →Al2O3(s)+ 2Fe…

Q: Consider the reaction 3X + 2Y → 5C + 4D How many moles of C can be synthesized from 38.0 moles of Y…

A:

Q: Use the following reaction to complete the statement: 2 C4H10 + 13 O2 -> 8 CO2 10 H2O 4 moles of…

A: Given reaction is as follows: 2C4H10 + 13O2 → 8CO2 + 10H2O The moles of butane = 4 moles

Q: Consider the following unbalanced chemical reaction: Al (s) + HCI (g) → AICI3 (g) + H2 (g)

A:

Q: 96. Aluminum is produced comi AlO, in the presence of a m tinuous capacity of 1.00 mil can be…

A: The reaction which is taking place here  Al2O3+6e-+6H+→2Al+3H2O Given  i =1 million Ampere Time= 2…

Q: 1. Consider the equation: (a) Is this equation balanced?

A: This is the concept of balanced coefficient

Q: Determine AG° for 2 NO2(g) → N2O«(g) at 25°C. Substance AGʻ† (kJ/mol) NO2 (g) 51.3 N204 (g) 97.8

A: Determine ∆G° for the given reaction ---

Q: If the heat of combustion for a specific compound is -1160.0 kJ/mol and its molar mass is 92.31…

A: Given information,

Q: Use the References to access important values if needed for this question. When the following…

A: The given reaction is, Fe2O3(s) + Al(s) → Al2O3(s) + Fe(s) Multiply Fe(s) with 2 in order to balance…

Q: 4NH3(g) + 5O2(g)4NO(g) +6H2O(g) H = -905 kJ When 4.92 grams of ammonia(g) react with excess…

A: Given reaction:  4NH3(g) + 5O2(g)------> 4NO(g) +6H2O(g)     H = -905 kJ First convert the given…

Q: 2CO2(g) + 5H2(g)→C¿H2(g) + 4H2O(g) AH= 46.5 kJ hen 9.15 grams of carbon dioxide(g) react with excess…

A: CAlculate mole to get value of ∆H

Q: (A) Predict all the product(s) of the following reactions: i heat = A heat = A heat = A 1 mole

A:

Q: For which of the following reactions is ΔHrxn∘ equal to ΔHf∘ of the product(s)? You do not need to…

A: Given:  To check for which of the given reactions is ∆Hrxn0=∆Hf0

Q: What is an endothermic reaction? What information on the graph above shows that’s the reaction…

A: Endothermic reaction : It is a reaction in which reactant absorbed energy(heat) from its surrounding…

Q: Titanium is a strong, slightly corrosion resistant metal and is used in rockets, airplanes, jet…

A: We have to find the number of moles first.   No of moles of TiCl4 = Mass / Molecular mass of TiCl4…

Q: For which of the following reactions is AS° > 0. Choose all that apply. 0 4NH3(g) + 502(g)4NO(g) +…

A: Entropy (S) :-  Entropy is a measure if randomness or disorderness of particles in a system. As…

Q: Consider the following reaction:     4 NH3 (g)   +   5 O2 (g)      4 NO (g)   +   6 H2O (g)…

A: Given  4NH3 (g)   +   5O2 (g)   →  4NO(g)   +  6H2O(g)            ∆H = - 905 Joule Value of ∆H if…

Q: Is it correct to say that the smaller the moles of reactants the greater the heat of combustion in…

A: Answer - The heat liberated on complete combustion of one mole of a substance is known as heat of…

Q: MgO(s)  +          CO2(g)                       ⇌       MgCO3(s)     [MgCO3(s)] [MgO(s)][ CO2(g)]…

A: Reaction given as : MgO(s)  +   CO2(g)    ⇌   MgCO3(s)

Q: Hydrazine, N2H4, is a colorless liquid used as a rocket fuel.  Which of the reactions represents the…

A: Given reactions: N2 (g)   +   2 H2 (g)   →   N2H4 (l) 2 N2 (g)   +   4 H2 (g)   →   2 N2H4 (l) 1212…

Q: Given the data in the table below, determine ΔH°rxnfor the reaction             4NO (g)  +  6 H2O…

A: In this question, we will determine the value of ∆H° reaction. We know the formula, product enthalpy…

Q: Thermite welding is an exothermic reaction, which produces molten iron that permanently binds metals…

A: The process is called as aluminothermic process.  In this process the aluminium metal acts as a…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.