7:42 PM Wed Dec 4 A www-awu.aleks.com AA Done ( O STOICHIOMETRY Finding a molecular formula from molar mass and elemental analysis - 1 and the following composition: Compound X has a molar mass of 102.18 g•mol element mass % carbon 58.77% hydrogen 13.81% nitrogen 27.42% Write the molecular formula of X. Explanation Check 2019 McGraw-Hill Educ II

Q: What is the differences between Kjeldahl's method and Dumas's method?

A: Difference between Kjeldahl's method and Dumas's method.

Q: A solution is contaminated with traces of cadmium, manganese, and cobalt. Which option would be the…

A: One of the removal of heavy metals is by using the solubility factor of these metals. In a saturated…

Q: Professor X mixed two solutions in a test tube and observed that the mixture was warm. He also tried…

A: Here we have to determine which following pair of liquid on mixing heat energy will be produced and…

Q: B. Calculate the following information. USE THE FACTOR-LABEL METHOD TO DO YOUR CALCULATIONS!!! 1. A…

A: The density of a solution is calculated by the formula: Density=MassVolume   Note: Since you have…

Q: Which substance has the greatest tendency to participate in a chemical reaction with small chain…

A:

Q: A solution is contaminated with traces of copper, nickel, and zinc. Which option would be the safest…

A: Given: A solution with traces of copper, nickel and zinc. To describe the safest way to make it…

Q: In standardization of HCl sample with 0.1 M Na2CO3 standard solution if we consumed 10 ml .HCl to…

A: Given: The volume of Sodium Carbonate (V1)=10 mL The volume of HCl (V2)=10 mL The molarity of Sodium…

Q: All of the work for this question has been done. The Professor asked an additional question that I…

A: The main aim is to determine the final molar concentrations of each element in seawater solution and…

Q: An injectable preparation comes packaged as a 4 g vial and states that you should add 35 mL to…

A: concentration in mg/mL = Mass of drug/Volume of solution

Q: Use the following information to answer question 36. Trichloroacetic acid, CC13COOH(aq), is used in…

A: Acidic species after loosing proton form conjugate base. Amphiprotic species is species which can…

Q: Thermal pollution is related to O a. a increase in dissolved oxygen in water O b. a decrease in…

A: Thermal pollution is the decrement in the water quality due to any process that changes the…

Q: 18) Which specie has the highest percentage of hydrogen? 1) он 2) Н,о 3) Н.О, 4) нзо-

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

Q: |(Choose one) |(Choose one)

A: When dissolved in water, a strong acid gives H+ easily whereas a weak acid dissociates very slowly…

Q: POSTLAB QUESTI 1. If you were given would do to pro each test.

A:

Q: I didnt get the answer right.

A: Given:  Radius = 149 pm= 1.49 × 10-10 cm The volume of the unit cell is needed to be find out if X…

Q: Use the exponent (EE) functionality on your calculator to do these calculations (a & c should be…

A: Significant figures of the answer will be two significant figures as the questions have .

Q: 5. can be used to treat a range of conditions such as asthma and chronic obstructive pulmonary…

A: A multiple choice question based on general chemistry that is to be accomplished.

Q: o summarise large amounts of water quality data for a specific r

A: Water quality parameter consists of temperature, dissolved oxygen, pH, conductivity, ORP and…

Q: Use the following information to answer question 35. An Equilibrium System N₂O4(g) + energy = 2…

A: In the graph initially there is equilibrium between N2O4 and NO2 then N2O4 is added ( as shown in…

Q: 44. Select the incorrect statement from the following. 單選題 (2分) O A.Micelles form spontaneously when…

A: Micelles form only when the concentration of surfactant(detergent) is greater than the critical…

Q: make 12.0 mL of a 8 um sample of proflavine in deionized water.

A: Here, we have to calculate the mass of proflavine that are required to prepare 12.0 mL of 8 μM…

Q: A solution is the same as a compound homogeneous mixture heterogenous mixure element

A: The homogeneous mixture of two or more substances is known as a solution. The solution is made from…

Q: 1. WATER POLLUTION VIDEO a. Describe the three categories of water pollution. b. What is…

A: Water pollution is a major problem nowadays. Water occupies major part of the earth but water that…

Q: Oleum at a concentration of 110 percent is equivalent to H2SO4 at a concentration of 91.8 percent.

A: According to the question, concentration of oleum = 110% Percent labelling of oleum = 100 + Total…

Q: how much diluent is needed to make a 1:2 dilution 50 ul sample

A: Diluent is a substance that is used to dilute the solution. Given information: 50 uL sample…

Q: 3: A method for removal of dissolved organic compound from wastewater

A: There are different processes and methods for removal of dissolved organic compound from wastewater…

Q: It was determined that benzoic acid (structure below) is not soluble in water. However, it can be…

A: We have to predict the substance for increasing solubility.

Q: We are just gonna keep practicing until I get it. Thanks for helping!

A: Given: [A]o =0.975 M [A] = 0.256 M t =1.51 x 103 s The order of reaction = 2nd order reaction   To…

Q: Which of these will NOT dissolve in water?    a.table salt b.sugar c.vinegar d.bacon fat

A: Given options are : a.table salt b.sugar c.vinegar d.bacon fat Which of these…

Q: Suppose you have a mixture of water and your 2-chloro-2-methylbutane product in a separatory funnel.…

A: density of substance is defined as mass upon the volume

Q: Please help

A: Ionic compounds are soluble in polar solvents as “Like dissolves like.”  Therefore polar solvents…

Q: 1.80x10-5) with 0.146 M NaOH. If the weak acid and NaOH reacts in 1:1 ratio, what is the pOH of the…

A:

Q: Express your answer with three significant digits. Do not include units! g/mol A sample solution has…

A: According to the question we have a sample of solution whose concentration is given which is, The…

Q: Volume HCl (mL) 25.00 а. 0.00 b. Initial buret reading (mL) 25.40 c. Final buret reading (mL) 25.40…

A: Equation  NaOH(aq) + HCl (aq) ——> NaCl (aq) + H2O(l)   Molarity = no. of moles / volume (Lt)

Q: Outline how one might achieve the following transformation, showing reagents and the isolated…

A: The question is based on the concept of organic reactions.   We have to convert the reactant into…

Q: 10. True or False (use your periodic table/data sheet when appropriate) a. The cation formed from a…

A: The bond will be more polar which has more electronegativity difference.  For multipart questions,…

Q: Principal ingredient of an antacid is Al(OH)3 (76.98). The concentration of 0.00400 M Al(OH)3…

A: Given, Molarity of Al(OH)3 = 0.00400 M

Q: The concentration of nitroge concentration of nitrogen ga A. 4.48 M

A:

Q: Suppose you have a mixture of water and your 2-bromo-2-methylbutane product in a separatory funnel.…

A: Density of 2-bromo-2-methylbutane is more than water.