The pressure of O2 in a 15.8 L flask is 463 mm Hg at 59° C. What is the mass of O2 in grams?

Q: A scientist finds that the air trapped in a J tube occupies the volume of 62. 86 cm3 at 18 bar…

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

Q: of H2 are combined under, which would be considered the limiting reactant? Part 2) How many grams of…

A: Given,  Molar mass = 17 g/mol Moles of H2 = 3.90 mol Moles of N2 = 3.36 mol Balanced chemical…

Q: When a 18.1 mL sample of a 0.313 M aqueous hydrofluoric acid solution is titrated with a 0.315 M…

A: Hydrofluoric acid, HF(aq) is a weak monoprotic acid with Ka = 6.6*10-4  Potassium hydroxide, KOH is…

Q: Given the following reactions Reactions Enthalpies of Reaction Na(s) + Cl2(8) Na(g) + Cl(g) AH = 269…

A: Determine the ∆H for the reaction, Na+(g) + Cl-(g) -----> NaCl(s)  ∆H = ?

Q: How do I tell which salt is more soluble in certain instances? (ex: 1.0M H+ versus pure water)

A: To explain: How to identify whether the salt is more soluble in pure water or in other solutions…

Q: After the NH3 molecules acted as Bronsted bases in the reaction with aqueous HCl they became NH4 +…

A: Concept:  A Ligands can be a ions or neutral molecules that bond to a central metal atom or ion.…

Q: CHM periment 10: Double Replacement xperiment 10: Data Sheet nalvsis: Write conventional, total…

A: Double displacement reaction: A double displacement reaction is a type of chemical reaction in which…

Q: 48- A solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of water, the density of resulting…

A: Molality is defined as numbers of moles of solute divided by mass of solvent in kg .

Q: Which of the following reactions would be 2-bromo-2-methylbutane as one of the possible products?…

A:

Q: 900 800 - Carbon disulfide 700 600 Methano 500 Ethanol 400 Heptand 300- 200 100 - 20 30 40 50 60 70…

A: Vapour pressure is the pressure exerted by vapour over the surface of liquid at the condition of…

Q: Given the coordination compound: [MoCO3(H2O)2][Zn(CN)3OH(en)2]. what is the central metal…

A: Central atom is an ion or atom to which one or more ligands is attached through coordinate covalent…

Q: Question 5 The reaction, So,Cl, le) - SO2 le) + Cl, (e), is first order with a rate constant of 2.31…

A: Given, SO2Cl2(g)  ➝ SO2(g) + Cl2(g) Reaction is a first order reaction. Rate constant (k)= 2.31 ×…

Q: 12. If 10 L of ammonia (NH3) forms in a reaction between an unknown amount of nitrogen gas (N2) and…

A: For question 12, we have to find the minimum volume of nitrogen gas that will react with 15 L of H2…

Q: 4. CH3CH2 CH2CH2CH2CH3 C=C H CH2CH3 CH2CH3 H3C CH3-CH-CEC-CH2-CH-CH3 CH3-CH2 CH2-CH3 5.

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Q: Write the half-reactions as they occur at each electrode and the net cell reaction for this…

A: Given that, a cell reaction is Sn(s)|Sn2+(aq)‖Ag+(aq)|Ag(s). We have to write the half-cell…

Q: 21. NH: HO,C

A: The substituent on benzene ring directs the incoming electrophile to ortho, meta, para position.…

Q: Give 5 differences of Symmetrical alkenes and Unsymmetrical alkenes .

A: We can differentiate between these types of alkene based on their structural aspects and reactions…

Q: A non-spontaneous reaction is also considered an impossible reaction. True False

A: Given question discusses, how non spontaneity is different from the inaccesibility of a chemical…

Q: Fill in the nuclide symbol for the missing particle in the following nuclear equation. 201 Hg

A:

Q: Q. 10.0 mol of nitrogen gas at 300k is contained in a 1,00L container. ( Nitrogen (N2) 9as is…

A: Given : n    = 10 mol V1  = 1.00 litre V2  = 2.0 litre T    = 300 k   Finds : To calculate the…

Q: What is the mass % of the solute if the concentration is 0.1432 M of a AGNO3 solution? O 2.433% O…

A: The mass percentage of the solute is the ratio of mass of solute to that of mass of solvent, whole…

Q: I am not understand these problems. Can someone help?

A:

Q: s the mode of decay for strontium-81 ?

A:

Q: 3.4 Propose a stepwise mechanism for the following reaction: CH,OH OCH,CH3 CH2OH OH CH2OH H30 H H H…

A: Detail mechanistic pathway is given below

Q: Consider the reaction in the attached image: a. The standard Gibbs free energy (ΔfG˚) for this…

A: Given that, an equilibrium reaction is AMP ⇔ adenosine + phosphate. The equilibrium constant is Keq…

Q: Average Exposure to Radiation from Common Sources Source Dose (mrem/year) Naturally Occurring…

A: The data given is,

Q: Which salts will be more soluble in an acidic solution than in pure water? Sn(OH)2 AgBr KClO4 CaCO3…

A: The fact to these is knowing what anions react with H^+ (the acid) and if any weak acids or…

Q: Explain why each name is incorrect, and then write a correct name a.    1-Methylpropene b.…

A: Name of the organic compounds are done according to VSEPR theory.

Q: When the nuclide bismuth-214 undergoes beta decay: The name of the product nuclide is The symbol for…

A:

Q: What is the reaction of corn oil and sulfuric acid? What happens in Friedel-Crafts Reaction with…

A: Unsaturated fats will react with sulfuric acid to form C-O-S bonds where carbon from oil will attack…

Q: When the nuclide iron-55 decays by electron capture: The name of the product nuclide is The symbol…

A: Electron capture process in which atomic number decrease by 1 and mass number remains same.

Q: A tank of argon gas with a pressure of 0.980 atmatm at -12∘C is heated to give a pressure of 1190…

A: Initial pressure, P1 = 0.980 atm 1 atm = 760 torr Initial pressure, P1 = 0.980 atm = 744.8 torr…

Q: Predict the 'H and C spectra for the following two compounds include integration relative shift and…

A: The proton and carbon NMR helps us to find the structure of the unknown organic compound.

Q: When plant nutrient samples are dissolved in water, the phosphorus in the sample forms phosphate…

A: When plant nutrient samples are dissolved in water, the phosphorus in the sample forms phosphate…

Q: Molecule Name (or short form name) of molecule Order the molecule is in during Glycolysis compared…

A:

Q: Based on the concept of distribution coefficient, a solute that is soluble with two immiscible…

A: Partition coefficient (P) or distribution coefficient (D) is the ratio of concentrations of a…

Q: d) Find the temperature increase expected for 2.00 L of water when it absorbs all the energy from…

A:

Q: If the theoretical yield is 3.2 g of product and the percent yield is 79.0% how many grams were…

A:

Q: What is the absolute configuration of the chloro-substituted carbon?

A: RS nomenclature: The RS nomenclature is an important nomenclature system for denoting the…

Q: 18. What is the mass of 20.0 L of gaseous nitrogen dioxide (NO2) at STP? 19. A sample of N2…

A: Given,  18) The mass of 20.0 L nitrogen dioxide gas at STP is:

Q: с. H3O (aq) d. OH (aq) Problem: SHOW ALL STAGES OF THE CALCULATIONS WITH CLEARLY. LABELED STEPS. 6.…

A: Given, Concentration of HNO3 = [HNO3] = 0.0420 mol/L Note: HNO3 is a strong acid undergoes complete…

Q: General formula for a carbohydrate is

A: Carbohydrates are polyhydroxy aldehydes or ketones.  Carbohydrates can be broadly classified as :-…

Q: 1) The nitrite ion concentration in a given canned goods sample was determined by redox titration…

A: In the redox titration process of nitrite ion (NO2-) with permanganate ion (MnO4-), manganese ion…

Q: Instruction: Find the following ΔH for the reaction below. 2H(s) + 2O2(g) → 2HO2(s)      ΔH = ?…

A: In this question Hess law is used which states that heat of reaction is same whether reaction takes…

Q: Calculate the factor by which a reaction rate is increased by an enzyme at 37°C if it lowers the…

A: Given that, the temperature is T = 37°C = (273+37) K = 310 K. We have to calculate the factor by…

Q: Consider the following half reactions in the attached image and their corresponding standard…

A: In a redox reaction: Oxidation reaction: Removal of the electron or increase in oxidation state is…

Q: Average Exposure to Radiation from Common Sources Source Dose (mrem/year) Naturally Occurring…

A: The data given is,

Q: A sample of sodium metal (Na) was reacted with excess water, producing hydrogen gas and aqueous…

A: We need to calculate the mass of sodium that has reacted in the reaction shown

Q: COMPLEX PREPARED (preparation #3 ) cuciz H20 Starting metal salt (MX H,0) copper (IT)chloride…

A: Given:

Q: The weak acid, chloroacetic acid, is a useful reagent in organic synthesis owing to a reactive C-CI…

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.