Information for Parts B, C, and D A compound is 80.0% carbon and 20.0% hydrogen by mass. Assume a 100.-g sample of this compound. Part B How many grams of each element are in this sample? Enter the number of grams of carbon followed by the number of grams of hydrogen, separated by a comma (e.g., 30.0,70.0).

Q: Suppose 3.61 g of chlorine, Cl2, are used to prepare dichlorine pentoxide, Cl2O5. How many moles of ...

A:

Q: 29. . Allotropes differ in which of the following properties: A. Electronegativity B. Crystal Stru...

A: According to Bartleby guideline more than one question only one question is attempt 

Q: 2.050 g of an unknown sample contains H, S, and O. If the compound contains 0.0500 g H and 0.800 g o...

A: Total weight of unknown sample = 2.050g  Mass of H = 0.0500g  Mass of S = 0.800g 

Q: You were assigned by your instructor to determine the concentration of NaCl in water. You did three ...

A:

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: Give the following information for the encircled element in the molecules as shown below 7) CH:ÇHCH:...

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first three part ...

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

A:

Q: Using a normal phase chromatography, which solute will elute out first from column? Chlorophyll Pheo...

A:                                          Answer In column chromatography the more polar compounds ar...

Q: How do structures of these IUPAC names look like? 2-Propoxy-1-(2-propoxyethoxy)propane   Please g...

A:

Q: A solution is prepared by dissolving 20g of NaCl (f.w.= 58.44 g mol^-1), a nonvolatile solute, in en...

A:

Q: Calculate the Miller rate for the Cartesian dimensions x, y, z in the following coordinates 2, -2, 4...

A: Answer is given as follows. :

Q: A scientist wishes to measure the concentration of methyl benzoate in a plant stream by gas chromato...

A: The given type of aanylysis called the Single Point Internal Standard method. Internal response fact...

Q: b) formation of the cyclopentane ring of prostaglandin Ba. .coM What kind of reaction is occurring?

A:

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

A: Given,  Concentration = 0.0490 M   Density of the solution = 1 g/ml  1g = 1 ml  1 kg = 1 L  1 L = 10...

Q: How many atoms are in 25.6 g tin? O 3.01x 1024 atoms O 3.01x 1023 atoms 6.02 x 1024 atoms O 1.30 x 1...

A: We have to predict the number of atoms.  

Q: It is the type of analytical method that relies on the absolute stoichiometric equivalences of balan...

A:  Instrumental methods: In this method quantitative and qualitative analysis of the analyzed is done ...

Q: What is the atom ratio between C and H in C2H5OH? O 2/6 O 2/1 O 1/5 O 2/5

A:

Q: Be sure to answer all parts. Calculate the percentage composition by mass of each of the elements in...

A:

Q: If 25 amperes of current flow for 15 minutes through a solution of Sn(NO3)2, how many grams of tin m...

A: According to the first law of Faraday, the mass of a metal deposited on the anode during electrolysi...

Q: Part A Which of the following acids is the weakest? The acid is followed by its K value. O HBRO, 2.8...

A:

Q: surface is 1000 psi. a) What is the pressure at a depth of 20,000 ft if temperature is assumed const...

A: Introduction :  Pressure can be defined as the force exerted by a fluid per unit area. 

Q: 2. A 4.5491 g sample of a sulfur containing compound is analyzed by precipitating the BaSO4. If 1.39...

A:

Q: What is the mass of 4.63 x 1012 atoms of Fe? O 8.96 x 10-10 g O 4.29 x 10-10 g O 2.73x 10-10g O 1.62...

A:

Q: 1. Calculate the amount of heat that must be absorbed by 10.0 gram of ice at -20C to convert it to l...

A:

Q: How do structures of these IUPAC names look like? d) 4-Mercapto-3-methylthiopentene

A: A question based on nomenclature that is to be accomplished.

Q: Remove ONE electron from a given atom. Rank the following atoms according to the energy required for...

A:

Q: What is the atom ratio between Cand H in C2H5OH? O 2/1 O 2/5 O 1/5 O 2/6

A: Atom ratio means the ratio of number of atoms of elements present in a compound. 

Q: Q3. Draw the d-orbital splitting diagrams of the central metal ions in a. Heptacyanoosmate(IV) b. Ir...

A:

Q: DIRECTIONS: FILL THE BLANKS WITH THE CORRECT ANSWER.  The critical age under which sunscreens shoul...

A: Fill the blank with the correct answers are given below.

Q: Which of the following DOES NOT belong to the group? nicotine caffeine tannins O morphine

A: Alkaloids can be defined as the naturally occurring organic compounds that contain  nitrogen bases. ...

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

A:

Q: e empirical formula for

A:

Q: Calculate the activity of La3+ in a saturated solution of La(IO3)3 in 0.010 M La(NO3)3. Ksp = 1.0 x ...

A:

Q: Calculate the mass of 1.92 x 1018 atoms of Mg. O 2.73 x 10-10g O 2.16 x 10-10 g O 1.62 x 104g O 1.08...

A: Given,  1.92x1018 atoms of Mg  We know that,  1 mol = 6.023x1023 atoms 

Q: The equilibrium constant K for the reaction H2(g) + Iz(g) 2HI(g) is 54.3 at 430°C. At the start of t...

A:

Q: What is the main importance for using change in free energy (ΔG) as the thermodynamic parameter for ...

A: Gibb's free energy is a state function and it is an extensive property. It is given mathematically a...

Q: Consider the following reaction: 1. 2 N2O5 (g) → 4 NO, (g) + O2 (g) The initial concentration of N¿O...

A:

Q: Choose which waste disposal container you should dispose of the unused 0.1 M FeClz solution. A organ...

A: Answer is given below :  

Q: Which of the following does not belong to the group? O carboxyl (-COOH) O formyl (-CHO) O carbonyl (...

A:

Q: Acetylene, C2H2, is a gas used in welding. The heat evolved for the combustion of acetylene is –33.7...

A:

Q: This method is to be used when measuring the volume of a solution containing sufficient reagent to r...

A: Volumetric analysis uses the method that involves the measurement of the volume of a solution whose ...

Q: ) a) The radical chlorination of pentane is a poor way to prepare 1-chloropentane but radical chlori...

A: a) The radical chlorination of pentane is a poor way to prepare 1-chloropentane but radical chlorina...

Q: a) Using the one-dimensional particle-in-the-box model, calculate the energy required to promote an ...

A:

Q: OH cat. Me H3C H;C HO CH3 wi

A: This reaction is a typical example of condensation reaction between two equivalents of carbonyl comp...

Q: 3) Add curved arrows to the following polar reactions to indicate the flow of electrons in each: (al...

A:

Q: For the following electron-transfer reaction: Pb2+(aq) + Co(s)  Pb(s) + Co2+(aq) The oxidation ha...

A:

Q: Balance the following chemical reaction and determine the coefficients of H2O and AlK(OH)4, respecti...

A: A balanced chemical equation states that the number of elements in the reactant side is equal to the...

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

A:

Q: Part 1 Determine the number of significant digits in each number and write out the specific signific...

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.