Calculate the mass percent composition of sulfur in Al2(SO4)3.

Q: Someone decided to try to recrystallize the molecule biphenyl using benzene as a solvent, but…

A: Introduction Purifying solid substances through recrystallization is a method. 1 In comparison to…

Q: when the following equation is balanced properly under basic conditions, what are the coefficients…

A: The reactions in which oxidation and reduction reactions occur simultaneously are called redox…

Q: Butanol is 64.81% carbon, 21.59% oxygen, and 13.60% hydrogen by mass. What is the molecular formula…

A: Given that the Butanol is 64.81% carbon, 21.59 % oxygen and 13.60 % hydrogen by mass. The molar mass…

Q: a. Change in temperature of solution, AT [°C] b. Heat change of water[J] c. Specific heat of salt

A: We are given data for the dissolution of NaCl(s) in water.  Two trials are performed to find the…

Q: change or double exchange): g) + 3H₂(g) = 2NH3(g) 12O6 (aq)--> 2C₂H.O (aq) +2CO₂ NO(g)--> Ca(NO3)2(

A: Balance chemical reactions are those in which number of atoms on both side of the equation i.e. left…

Q: 12. What are the common units of reporting concentration in analytical chemistry. Include the…

A: Concentration : The concentration is the abundance of a constituent divided by the total…

Q: Problem 1. Calculate AH for the following equation and state whether or not the nature of the…

A: Note  : important data information is not given regarding this question so I am going to use…

Q: 3. Alanine is a diprotic amino acid. a. Make a ladder diagram for alanine. b. Draw the predominant…

A: Alanine is an amino acid. In the given question, it is asked to make a ladder diagram of alanine and…

Q: Determine the lowest temperature (in "C) at which a certain reaction starts to become spontaneous…

A:

Q: Chemistry A second-order reaction has a first half-life of 802 s. What will be the value of the…

A:

Q: D Question 2 For the following solution, calculate the pH. K = 1.8 x 10-5 0.15 M CH3COOH Question 3…

A:

Q: 11.1 g of nonvolatile solute (73.5 g/mol) is added to 225.9 g of solvent (38.69 g/mol) at 23ºC to…

A:

Q: Given the below data at 25°C Determine the rate law for the reaction, A + 2BAB2 Experiment [A]o M…

A: Rate law :-  The dependence of rate of reaction on the concentration of reactants is expressed…

Q: Rank the following compounds with the most to least polar carbon bond. NH₂

A: Given  Find out the most to least polar carbon bond So Concepts  Bond are polar due to…

Q: The following reaction has a rate constant of 8.06x10-2M-1s-1. Reaction: O → 2P If the reaction is…

A: Time required to proceed reaction at desirable concentration of reactant can be calculated from the…

Q: The oxygen gas emitted from an aquatic plant during photosynthesis is collected over water at a…

A: Given,Temperature at which oxygen gas is collected over water = 25 °CTotal pressure = 759…

Q: Rank the following compounds in order of increasing acidity, and explain your ranking. -СООН -СООН…

A: For a carboxylic acid, Electron withdrawing group enhances the acidity of the carboxylic acid…

Q: If 7.24 g of Na2CO3 is dissolved in enough water to make 250. mL of solution, what is the molar…

A: Recall the data, mass of Na2CO3=7.24 g Molar mass=105.9888 g mol-1 Volume of the solution=250.…

Q: How much lower(answer in absolute value) is the freezing point of water when 452 g glucose in…

A:

Q: QI: Determine the product, illustrate the mechanism, and indicate which…

A: Since you have asked multiple questions we will answer the first one for you. Please specify and…

Q: Make an outline of the separation of the following cations into their respective groups:

A: a) Given cations: Mercury(I) =Group I Cd2+ = Group II(A) As3+ = Group II(B) Ba2+ =Group (IV) Na+ =…

Q: Question 36 Which of the following chemical reactions is a part of the ozone-oxygen cycle known as…

A: The ozone layer is created when ultraviolet rays react with oxygen molecules (O2) to form ozone (O3)…

Q: The density of dry air is 0.0118 g/cm3. What is the volume of the air that has a mass of 15.5 g?

A: The density of air = 0.0118 g/cm3  Mass of air = 15.5 g  Formula used :  Density = Mass ÷ volume

Q: Question 4 Part b of previous problem: A 0.150 M solution of a weak acid has a pH of 2.65. What is…

A: Answer:- This question involves the calculation of percent ionization of a weak acid which is given…

Q: Trial 1 15.48009 15.78579 Mass of empty crucible Mass of crucible with Mg Observations of reaction…

A: Here the reaction of the experiment is ..........    2 Mg + O2 →2 MgO ........ (1) Here we have to…

Q: 5. Limestone consists mainly of mineral calcite, CaCO3. The carbonate content of 0.5413 g of…

A: Here 0.5413 g of powder lime stone sample is treated with 10ml of 1.396 HCl and then unreacted…

Q: Part III. Nomenclature of Organic Compounds Direction: Name the following hydrocarbons. 5. 6. 7. х с…

A: we have to write the names of the given structures using IUPAC rules

Q: 5. For the 0.1 M equimolar reaction of CH3COOH + NH3 CH3-CO-O + NH4* Is the concentration of…

A: The given reaction is : CH3COOH + NH3 ⇌ CH3COO- + NH4+

Q: For a reaction, if AGO = 0, one can surely conclude that: AS⁰ = 0 ΔΗ = 0 AU O K = 1 ) K = 0

A:

Q: 2) If 16.817g of a hydrate is found to contain 6.118 g of water, what i in the hydrate? mitt boor 3)…

A:

Q: 2PbS (s) + 302(g) the expression for Kp. Y [H₂S] = 1M, [CH4] =1 2H₂S (g) + CH4(8) The expression for…

A:

Q: 10. Calculate the concentrations of all species in a 0.930 M Na₂SO3 (sodium sulfite) solution. The…

A:

Q: An excess of oxygen reacts with 451.4 g of lead, forming 355.0 g355.0 g of lead(II) oxide. Calculate…

A:

Q: Plot the interaction potential for a Na+ ion and Cl- ion as a function of separation distance in…

A: For water, relativity permitivity, ε = 80.2 For  Ethylene glycol, relativity permitivity, ε = 37…

Q: 2. Solid CaCO3 upon heating decomposes to solid CaO and CO₂ gas. If the pressure &molot sealed…

A: Given data :  CaCO3(s) <==> CaO (s) + CO2 (g)  Total pressure = 0.76 atm  Temperature = 560 K…

Q: 21. A test tube contains the following chemical equilibrium: N₂O(g) + 59 kJ ⇒ 2NO₂(g). You notice…

A: Color of solution or compound depends on the number of unpaired electrons.

Q: What is the mass in grams of 2.01 x 1022 atoms of mercury?

A: • The values provided in the question are:-         i) Number of mercury atoms = 2.01 × 1022 atoms…

Q: Part III. Nomenclature of Organic Compounds Direction: Name the following hydrocarbons. 25. 26. OH…

A:

Q: 15. The concentration of 0.1 M NaOH in PPM is (a) 36,000 (b) 4000 (c) 400 (d) N/A a Od Ob с

A: The mass of solute present per million mass of the solution is known as part per million (ppm)…

Q: Common Ion Effect and Buffers Experiment Set up ICE table and find pH. (Ka = 1.8x10-5) Solution A:…

A: Given,  Volume of CH3COOH in mL = 30.0 mL  Molarity of CH3COOH = 0.10 M  (a). Find pH of 30.0 mL…

Q: he following text may be found at the ThermoFisher website: "PBS (phosphate buffered saline) is a…

A: Since the buffer solution is 1x concentrated it is not diluted.  Hence we have to use the…

Q: Ethyl alcohol (C2H6O) is prepared by the reaction of ethylene (C2H4) with water; C2H4 (g) + H2O (l)…

A: Molar mass of ethylene is 28.05 g/mol.          Molar mass of ethyl alcohol is 46.07 g/mol

Q: 27. 28. 29. НС НО CI ОН ОН LO¯Na* ОН

A: Here we have use IUPAC rule

Q: 14. Which of the following compounds can act as an Arrhenius, Bronsted, and Lewis base? (a) H₂O (b)…

A:

Q: If you dilute 35.0 mL of 1.00 M hydrochloric acid to 800. mL, what is the molar concentration of the…

A:

Q: :) 1. CH₂MgBr 2. H.O 3. NaH 4. CH CH Br O

A: Grignard reagents react ketone to form alcohol.   NaH  the hydrogen has a -1 oxidation state so it…

Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Recall the data, mass of HBr=70. g Molar mass =80.91 g mol-1 mass of NaOH=47.1 g Molar mass=40 g…

Q: Predict the major product formed when hexanoyl chloride is treated with C6H5CO₂Na. Modify the given…

A: Acid chloride reacts with sodium acetate to give anhydrides.

Q: After the experiment, a student decides to dispose of their excess Mg safely by reacting it with…

A: Disposing off excess metal safely is important task in experiment. The amount of reagent required…

Q: From J 5 51.4010 52% 52.8% 51.4010 Find the standard deviation

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.