Please Help 28.Given the empirical formula of NO2 and a molar mass of 92.0 g/mol, what is themolecular formula?29.A compound has the composition: carbon 37.21%; hydrogen 7.83%; and chlorine54.96%. If its molar mass is 385 g/mol, determine (a) the empirical formula (b) themolecular formula.30.A hydrocarbon has a molar mass of 114 g/mol and has a composition of carbon84.06% and hydrogen 15.94%. What is its (a) empirical formula (b) true formula?

Since you have posted multiple questions, the answer for first question is given below. Kindly…

Answered: Please Help

Science

Chemistry

Please Help

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter3: Stoichiometry

Section: Chapter Questions

Problem 149AE: A sample of a hydrocarbon (a compound consisting of only carbon and hydrogen) contains 2.59 1023...

See similar textbooks

Related questions

Q: metal orbital that interact with Y3 of cyclobutadiene are * O dx2-y2 O dxz O px O dyz

Q: Predict the pH (>7,7 7

A: a) KBr is a salt of strong base and strong acid.

Q: You have been asked to characterize benzoic anhydride by IR spectroscopy. Unfortunately, your labora...

A: ATR probe is inserted directly into the sample and it can measure spectral properties without the ne...

Q: eatment with aqueous acidic KMNO4, two products are obtained, CH2)12CO2H and CH3(CH2),CO;H. Propose ...

Q: Directions: Write the balanced chemical equation and solve each of the following. Do this activity i...

A: 1) Given, Aluminium metal (Al) and hydrogen chloride (HCl) react to form aluminium chloride (AlCl3) ...

Q: Answer the following questions about the Lewis structure for cobalt (II) hydrogen sulfite, Co(HSO3)2...

A: Lewis structure of Co (HSO3)2 Cobalt (II) hydrogen sulfite dissociates into Co2+ ion and 2 HSO3 - d...

Q: エ

A: Given compound is : What is the name of the alkene where the compound below was produced through O...

Q: What is the mass of oxygen atoms are in 4.36g of FeSO4?

Q: Answer the following questions about the Lewis structure for iron (III) hydrogen phosphate, Fe2(HPO4...

A: Lewis structure of Hydrogen phosphate ion is given by,

Q: all 4 carbons are bonded to each other in a row, 2 O's bonded last C on the right, one multiple bond...

Q: 2. Consider the following Eewis symbols for elements X and Y. a. What are the Group numbers of X and...

Q: Determine if 5-Bromo-3-hexene is correct. If incorrect, provide the correct IUPAC name. SUBMIT YOUR ...

A: IUPAC name of the given compound.

Q: A sample of lead ore has a density of 8.80 g/mL. It is composed of two lead compounds: lead oxide, P...

A: Density of lead oxide = 9.10 g/ml Density of lead selenide = 8.10 g/ml Density of lead ore = 8.80 g/...

Q: Bereken die persentasie kristalwater teenwoordig in die southidraat, CuSo, XH20 en rapporteer jou an...

A: Percentage crystal water present can be calculated from the mass of water present in the hydrated sa...

Q: 1) Water solutions made of strong acids do not conduct electricity very well. A) True B) False 2) Wh...

A: Since you have posted a question with multiple sub-parts, as per our company guidelines we are suppo...

Q: deltaG

Q: Which gas has the slowest rate of diffusion? A H; B NH, C CH D CO2 A O B C D

A: Concept is based on Ghrams law:

Q: What impurity was likely removed during the recrystallization necessary ?

A: Recrystallization is the most important method of purifying nonvolatile organic solids. Recrystalliz...

Q: CH3 162 CH2 CH3 177 NH2 120 CH 1 base CH3 peak nt C 13

A: Concept is based on mass spectrometry:

Q: Does cis/trans-isomerism exists in? a.3-methyl-1-pentene b.2-methyl-2-butene c.1,2-dic...

Q: Show on the diagram in the image the flow of electrons entering and leaving the battery.

Q: Exp [CO, Imk, M [OH ]mitr M Initial Rate, M/s Temperature, ºc 0.020 0.050 1.4 X 10-3 25.0 2 0.020 0....

A: Question 2

Q: At an altitude of 15 km the temperature is 217 K and the pressure 12.1 kPa. What is the mean free pa...

A: Cross-sectional Area for Nitrogen is 0.43 nm2 Temperature = 217 K

Q: Cyclic peptides received increasing amounts of attention because of their pharmaceutical propertie i...

A: Cyclic peptides have much importance in Pharmaceutical industries. This cyclic peptides are formed V...

Q: Which reaction(s) afford pentylamine in high yield and minimal side products 1. NaN3 A Br 2. LİAIH4 ...

A: We have to tell among the given reaction which are pentylamine is high yield.

Q: Fill in the missing chemical formulae in the tables below. acid conjugate base base conjugate acid H...

Q: An unknown gas, X2(g), which behaves much like N2(g) (N≡N), is analysed and the following enthalpies...

Q: 4. A 0.5843-g sample of a plant food preparation was analyzed for its N content by the Kjeldahl meth...

Q: 1. Calculate AH for the reaction: C2H4 (g) + H2 (g) ing data. a. C2H4 (g) + 3 02 (g) → 2 CO2 (g) + 2...

Q: Which of the following is NOT a weakness of the Meyer Overton theory? O does not explain why certain...

A: The Meyer-Overton speculation is the hypothesis of sedative activity which suggests that the strengt...

Q: e number of hydrogen atoms.

Q: Two pieces of metal (A and B) are in contact with each other and initially at different temperatures...

Q: Substantially discuss how Nitration of Toluene works

A: Toluene gives ortho and para isomer by the nitration,but it heated it can be give dinitro toluene an...

Q: What are the two components of a buffer solution? How do each of them maintain pH?

A: Answer: Buffer solution is the type of solution whose pH doesn't change on adding small quantity of ...

Q: H,C CH3 CH H,C -CH Н. Give the following: parent name: Cubctituontc:

Q: H,C -CH CH CH H,C: CH structure 1 structure 2 Which is the more stable alkene? Explain your answer.

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

Q: What is the maximum value of the secondary quantum number (ℓ) allowed for atomic electrons with a pr...

A: Quantum numbers :- Quantum numbers are like address of electrons inside the atom There are four qua...

Q: A 13.2010g sample of hydrated zinc sulfate, ZnSO4 • xH2O), was strongly heated until no further chan...

A: For the reaction., ZnSO4 • xH2O ----> ZnSO4 + xH2O Given Mass of ZnSO4 • xH2O = 13.2010 g Mass o...

Q: Which of the following conditions is necessary for a process to be spontaneous? a. ΔHsys0ΔSsys>0 c...

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined ...

Q: A 27.0-mL solution of 0.120 M CH3COOH is titrated with a 0.230 M KOH solution. Calculate the pH afte...

Q: When the following skeletal equation is balanced under acidic conditions, what are the coefficients ...

Q: Which statement is NOT true? a. A solute and solvent may be gases b. A solute takes on the phase o...

A: A solute is the substance that is dissolved in a solvent to make a solution. Thus considering the co...

Q: Spectrum BETA: (Image source: National Institute of Advanced Industrial Science and Technology, Retr...

Q: Be sure to answer all parts. Heating copper(II) oxide at 400°C does not produce any appreciable amou...

Q: conditichs Reachion takes place unoleracidic Led Pronde an amow mechanism N HL O meehanum Kor reaenu...

A: This is known as Mannich reaction.It undergoes via the formation of Mannich base.

Q: meo N. on Et

A: Cogfiguration of chiral centres is done by using CIP rules. All the 4 chiral centres are shown in di...

Q: Describe the similarities and differences in the energy profiles for exothermic and endothermic reac...

A: Exothermic reaction are the chemical reactions in which energy is released and Endothermic reactions...

Q: What is the principal quantum number (n) for the valence electrons in lead?

A: Quantum numbers can be defined as the set of 4 numbers that help us to know about the electrons pres...

Q: activity 1. Problem Solving Directions: Calculate the AS for each given reaction. Show your complete...

A: Change in entropy ΔS0 for a reaction is given by, ΔS0rxn = Σ S0products - Σ S0reactants

Q: An ideal gas ina cylinder fitted with a piston expands at constant temperature from a pressure of 6 ...

Concept explainers

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.

Question

Please Help

28.
Given the empirical formula of NO2 and a molar mass of 92.0 g/mol, what is the
molecular formula?
29.
A compound has the composition: carbon 37.21%; hydrogen 7.83%; and chlorine
54.96%. If its molar mass is 385 g/mol, determine (a) the empirical formula (b) the
molecular formula.
30.
A hydrocarbon has a molar mass of 114 g/mol and has a composition of carbon
84.06% and hydrogen 15.94%. What is its (a) empirical formula (b) true formula?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Calculate the mass in grams of 3.839 moles of (a) hydrazine, a rocket propellant. (b) caffeine, C4H5N2O. (c) theobromine, C7H8N4O2, the alkaloid present in chocolate and cocoa.
3.96 Methyl cyanoacrylate is the chemical name for the substance sold as Super Glue, and it has the chemical formula C5H5NO2. Calculate the number of molecules of this substance in a 1.0-ounce tube of Super Glue, assuming that the glue is 80% methyl cyanoacrylate by mass.
A substance X2Z has the composition (by mass) of 40.0% X and 60.0% Z. What is the composition (by mass) of the compound XZ2?
A sample of a hydrocarbon (a compound consisting of only carbon and hydrogen) contains 2.59 1023 atoms of hydrogen and is 17.3% hydrogen by mass. If the molar mass of the hydrocarbon is between 55 and 65 g/mol, what amount (moles) of compound is present, and what is the mass of the sample?
4.61 What is actually measured by the octane ratings of different grades of gasoline?
The structure of one of the bases in DNA, adenine, is shown here. Which represents the greater mass: 40.0 g of adenine or 3.0 1023 molecules of the compound?
You take 1.00 g of an aspirin tablet (a compound consisting solely of carbon, hydrogen, and oxygen), burn it in air, and collect 2.20 g CO2 and 0.400 g H2O. You know that the molar mass of aspirin is between 170 and 190 g/mol. Reacting 1 mole of salicylic acid with I mole of acetic anhydride (C4H6O3) gives you 1 mole of aspirin and 1 mole of acetic acid (C2H4O2). Use this information to determine the molecular formula of salicylic acid.