How many grams of KBr, 119.0 g/mol, are required to prepare 0.986 moles of Br2 according to the balanced reaction? KBrO3 + 5 KBr + 6 HNO3 → 6 KNO3 + 3 Br2 + 3 H2O Report your answer with three significant figures.

Q: 1.) Arrange ice, liquid water, or water vapor according to their decreasing strength of intermolecul...

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

Q: Information for Parts B, C, and D A compound is 80.0% carbon and 20.0% hydrogen by mass. Assume a 10...

A: Given, Mass of sample of the compound = 100 g Percentage of of each element in the sample of compoun...

Q: a chemical equation.

A:

Q: ny nickel atoms a MM (P) = 30 97

A:

Q: The density of a liquid is 7.4 g/mL qnd has a mass of 22.58 g. What is the volume in mL

A: Given,  Density of the liquid = 7.4 g/mL  Mass of the liquid = 22.58 g  What is the volume of the li...

Q: Spontaneity

A:

Q: rection: Match the following compounds in column A to their respective chemical formulas in column B...

A: Below attached file showing the details answer. All the best. 

Q: CH.OH Lewis Structure

A: Lewis structure is defined as the diagrammatic representation of the total valence electrons present...

Q: What is that the entropy change of the universe (J/mol-K) when the entropy change of the system is 7...

A:

Q: CH4 | CH,O NO, (use the N with 4 holes) Not needed. NO, is Lewis Structure # electronic domains # bo...

A: Molecular  Geometry  Tells us about the arrangement  of atoms around Central  molecule. 

Q: What is the percentage composition by mass of the substance shown below? % C = i % S = i %H = i How ...

A: The given molecules contain: The number of carbon atoms is = 2 The number of sulfur atoms is = 1 The...

Q: Express the concentration of a 0.0490 M aqueous solution of fluoride, F¯, in mass percentage and in ...

A:

Q: Q.11 In an IC engine working with Nitrogen gas on an ideal Otto cycle, the minimum enclosed volume i...

A: We have to find out the work done by the engine. 

Q: You have a 350mL of a 1.5M NaCl solution. If boiling the water until the volume of the solution is 2...

A: Given,  Initial volume, V1 = 350 mL Initial concentration, S1 = 1.5 M Final volume, V2 = 200 mL  Fin...

Q: A compound is found to contain 26.96 % sulfur , 13.45 % oxygen , and 59.59 % chlorine by mass. To an...

A:

Q: Identify the condition(s) that will not work for the reaction shown? Choose all the selections that ...

A: In the given reaction an alkyl group is attached to the benzene ring. The reaction cannot proceed by...

Q: A chemist must dilute 39.5mL of 664.mM aqueous barium acetate BaC2H3O22 solution until the concen...

A:

Q: Isooctane is a primary component of gasoline and gives gasoline its octane rating. Burning isooctane...

A: Heat released = 330 KJ Initial temperature = 23.2℃ Final temperature = 66.5 ℃

Q: Use the graph below as reference: What is the boiling point of pure toluene? O a. 110 % O b. 109 % ...

A: Given, A phase diagram of toluene and cyclohexane is provided as reference       Required,          ...

Q: 1) Propose a plan to synthesize 2,2,3-Trimethylpentan-3-ol: 2) Predict & draw the products of the ff...

A: PCC is a mild oxidizing agent and helps in oxidation of alcohol.  Primary alcohol oxidize to give al...

Q: (4) Determine the point group of CHa and show the symmetry elements/operations using 3D drawing. (5)...

A: In point group classification we have to find out different axis of rotation,plane of rotation ,if a...

Q: How many moles of Zn are there in a sample of Zn that contains 3.14×1024 atoms? moles

A:

Q: 8. A strong signal in infrared spectroscopy indicates that a molecule matches the emitted electromag...

A: When a matching electromagnetic radiation fall, the electrons are get excited.

Q: 5.)20.0 ml of 0.200M hypobromous acid, HBrO, is titrated with 0.250M sodium hydroxide, NaOH. Calcula...

A: Volume of HBrO = 20 mL Molarity of HBrO = 0.200 M Molarity of NaOH = 0.250 M To determine pH at equi...

Q: Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 1.1 m/s and a...

A: Given, mass of cart 1 =0.45 kg speed of cart 1 = 1.1 m/s mass of cart 2 = 0.75 kg

Q: Based first from the first photo (table 3-2). Answer A (3 only) answer B (1,2,3)thanks with complete...

A: We have to determine reaction is exothermic or endothermic. 

Q: A buffer is made up of 15.0 mL of 0.1 M HC,H,02 and 15.0 mL of 0.1 MNa CH3O2 The solution is diluted...

A:

Q: Under certain conditions the rate of this reaction is zero order in ammonia with a rate constant of ...

A:

Q: Direction: Match the following compounds in column A to their respective chemical formulas in column...

A:

Q: Please analyze the given and answer the question number 1. Compute for the actual weight of each tab...

A: A question based on introduction to chemistry that is to be accomplished.

Q: C;H100 MW 86 te

A:

Q: 2. Consider the element Uranium, U. Determine which isotopes are naturally occurring. Look up the ma...

A: The average atomic weight from the given mass number and natural abundance of each isotope of the el...

Q: What is the mass of one atom of I? O 6.641 x 10-23 g O 4.745 x 10-22 g O 2.107 x 10 22 g O 3.443 x 1...

A: To determine the mass of 1 atom of I, do the following : 1) Determine molar mass of the substance.  ...

Q: a) By how much should the student expect their sample measurements to increase by? Why? b) Will thei...

A: (a) In spectrophotometry, the absorbance is directly proportional to the concentration of analyte an...

Q: A certain reaction has an equilibrium constant of 10.1 at 25oC. A ⇄ B. Determine the ΔG, in kJ/mol, ...

A: Given  Reaction   A ⇌ B  Temperature ( T )  = 25 ℃                               = ( 25 + 273 ) K   ...

Q: Unknown compound D has a melting point of 102-3C. Carbon/hydrogen analysis of compound D showed 30.4...

A: Given: Compound I contains 30.4% Carbon nad 2.1% H    Conclusion: For every 30.4g of C, moles of C =...

Q: When the following equation is balanced properly under basic conditions, what are the coefficients o...

A:

Q: 1. Identify the functional groups in the following molecules, and show the polarity of each: NH2 CH,...

A: Due to the electronegativity difference between the atom in the bond. Polarity creates as the partia...

Q: , Kgoal = ?

A:

Q: molar solubility

A:

Q: 1. The [H30"], in M, of 10.00 mL of 0.100 M NaOH after adding 10.00 mL of indicator solution. To ent...

A:

Q: Kc for the reaction of hydrogen and iodine to produce hydrogen iodide.  H2(g) + I2(g) ⇌ 2HI(g) is 54...

A:

Q: A reaction vessel is charged with 0.50 atm of A and 0.180 atm of B. Once the reaction reaches equili...

A:

Q: Br2 (1eq) H3CO- CH3 FeBr3

A:

Q: Be sure to answer all parts. Pheromones are a special type of compound secreted by the females of ma...

A: For this question, first calculate number of moles for pheromone and then convert that moles in numb...

Q: Species Present Chemical(s) tested No, Few or Strong, Weak or Non electrolyte? Strong Many Ions? Li ...

A: As per the rules only first three subparts of first question can be answered:

Q: Hess's Law cannot be used to compute q for a process.

A: Answer is given as

Q: Visited .Tow many MOLES of sulfur dichloride are present in 1.69 grams of this compound ? moles. 2. ...

A:

Q: one electron that is confined in a molecular orbital that extends over 8 adjacent carbon atoms. The ...

A: Particle in 1D-box

Q: For calibration curve of true conc. 8,5, 6, 14, 40 and Ing/ml, find out the dynamic range and LLOQ, ...

A: Given that, for calibration curve of true concentration 8, 5, 6, 14, 40 and 1 ng/mL. We have to find...