8. How many grams of KNO3 are contained in 245 mL of 3.00 M KNO3 solution?

Q: 31. To what volume should you dilute 50.0 mL of a 12 M stock HNO3 solution to obtain a 0.100 M HNO3…

A: #31 show work    HNO3    Before dilution After dilution Molarity M1= 12 M M2 =0.100M Volume…

Q: #13 please show work

A: The molar mass of Mg(CN)2 is 76.3398 gmol-1  In Mg(CN)2 , there is 1 mol Mg, 2 mol Carbon and 2 mol…

Q: . What is the volume occupied by 2.98 g of argon at 75 °C and 7.12 atm? Pu=nRT xרס orjon m= 2.983 T:…

A: 1. PV = nRTV = nRTP = 2.98g × 1mol39.948g × 0.08206 L⋅atm⋅K-1⋅mol-1 ×348.15K 7.12atm…

Q: #19 please show work

A: You have the following reaction -  Mg(s) + 2HCl(aq) => MgCl2(aq) + H2(g)

Q: Hydrobromic acid dissolves solid iron according to the reaction: Fe(s) + 2 HBr(aq) FeBr₂(aq) + H₂(g)…

A: Introduction: Metals when treated with acids gives salt and Hydrogen gas. The production of Hydrogen…

Q: 9) Consider the galvanic cell based on the following half- reactions: Au3+ + 3e→ Au E0 = 1.50 V %3D…

A: The value of Ecell is calculated by using the value of standard electrode potential of cell, number…

Q: MISSED THIS? Read Section 17.9 (Pages 765-769). Consider a 0.14 M solution of a weak polyprotic acid…

A: Given,  Molarity of H2A = 0.14 M Ka1 = 1.0 x 10–4 Ka2 = 1.0 x 10–6

Q: 12. Balance the following equations. Reaction Al(OH)3 (s) + HCl(aq) → AICI3(aq) + H2Om What me K2CO3…

A: Given, the chemical reactions as follows,  a)   Al(OH)3(aq)+HCl(aq)→AlCl3(aq)+H2O(l)b)…

Q: 10. Balance the following equations: Ca(NO3)2(aq) + Na,SO4(a9) → CASO466) _NaNO3 а. b. Ni (s) + CaO…

A: Interpretation - To balance given reactions

Q: 17. Calculate density of gaseous SO2 gas at STP.

A: The given gas is SO2. At STP condition the pressure and the temperature of the gases are…

Q: 7) Complete the following reactions. A) B) D) Lindler's catalyst H₂ excess H₂ / Pt excess H₂…

A:

Q: #75 only please show work

A: In automobile airbags, sodium azide decomposes into sodium metal and nitrogen gas. The reaction for…

Q: Part C 13.0 moles of gas are in a 8.00 L tank at 23.6°C. Calculate the difference in pressure…

A: Real gasses have attraction so they have less pressure than ideal gasses

Q: plz help and show all work

A:

Q: Number 1 through 4 show all work please

A: Hi, as you have posted multiple questions. As per our guidelines, we will answer the first three…

Q: 16. A syringe initially holds a sample of gas with a volume of 285 mL at 355 K and 1.88 atm. To what…

A: For the phase change of the ideal gas the temperature, pressure, and volume of the initial state and…

Q: 2. Rank the molecules below from most reactive in Diels-Alder reaction to least reactive. Explain…

A: Diels-alder reaction involves cycloaddition of diene with dienophile to give six member cyclic…

Q: 6. What is the final molarity that would result if you diluted 180.0 mL of a 1.55 M HCl solution to…

A: Initial molarity of HCl solution = 1.55M Initial volume of HCl with 1.55 molarity = 180.0mL Final…

Q: 29. If 123 mL of a 1.1 M glucose solution is diluted to 500.0 mL, what is the molarity of the…

A: Given data: 123 mL of 1.1 M glucose solution Volume of diluted solution 500 mL

Q: A laboratory procedure calls for making 400.0 mL of a 1.1 M NaNO3 solution. What mass of NaNO3 (in…

A: Use molarity as a conversion factor in order to convert liters into moles. Then use molar mass to…

Q: 2. Show the mechanism for the sulfonation of benzene. Cl,, AICI,

A:

Q: 4. Rank the following aromatic compounds in order of decreasing reactivity in electrophilic aromatic…

A: OH = Strong EDG, OAc = moderately EDG, Double bond = Weak EDG, CH3CO = moderately EWG, CN = strong…

Q: 14. Calculate the volume occupied by a sample of silver if it has the mass of 9.12 g and its density…

A: Density - Mass occupied by unit volume of a substance is known as Density. Formula:  Density (d) =…

Q: 35. What is the minimum amount of 6.0 M H2SO4 necessary to produce 25.0 g of H2(g) according to the…

A: Well-balanced chemical equation:                           2Al(s) + 3H2SO4(aq) →  Al2(SO4)3 (aq) +…

Q: What is the mass number for an atom of osmium containing 76 protons and 112 neutrons?

A: The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of…

Q: 8. A 0.741 g sample of gaseous compound exerts a pressure of 0.822 atm in a 486 mL at 13.8 °C. What…

A:

Q: Determine whether each compound is soluble or insoluble. If the compound is soluble, list the ions…

A: AgNO3 According to the solubility rules, all the compound containing nitrate ion (NO3­-) are soluble…

Q: 7. Using the formulas provided for you in the lab introduction, fill the missing areas in the…

A: 7.) The relations used to solve are :  1.) pH + pOH = 14  2 ) pH = - log [H+]  Also, [H+] = 10-pH…

Q: 2. A sample of argon weighing 11.1 g-oceupies a volume of 15.7 L. What is the new volume if the mass…

A: Using the ideal gas equation: PV = nRT P is the pressure, V is the volume, n is the no of moles, T…

Q: of each wavelength of electromagnetic Read Section 8.2 of red light from helium-neon laser)

A: Given: wavelength  ( λ ) = 632.8 nm                                = 632.8×10-9 m Frequency = C / λ…

Q: ne 1 of 21 4. For the reaction quantities shown below: Identify the limiting reagent and excess…

A:

Q: 11)Copper-64 decays in such a way that concentration versus time data collected resulted in a…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: For each of the reactions, calculate the mass (in grams) of the product that forms when 3.67 g of…

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

Q: 23. Balance each chemical equation. MISSED THIS? Read Section 4.2; Watch KCV 4.2, IWE 4.2, 4.3 a.…

A:

Q: If I do this reaction with 15 grams of sodium sulfate and get a 65.0% yield, how many grams of…

A:

Q: Calculate the root mean square velocity of F2,Cl2, and Br2 at 304 K. Express the velocities in…

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

Q: 5. Calculate the molarity if 150.0 g of MgSO4 was dissolved in water with a total volume of 750.0…

A: 150.0 g MgSO4 is dissolved in 750.0 mL of water. The mass of solute is 150.0 g and the volume of the…

Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.