21ETRY AND REDOX REACTIONSIf 20% by weight of nitrogen is present in a compound, themolecular weight of the compound may be(a) 144(c) 100(b) 28d) 140The mineral haematite is Fe2O3. Haematite ore containsunwanted material called gangue in addition to Fe2O3. If5.0 kg of ore contains 2.78 kg of Fe, What is percentagepurity of Fe;O;?A polystyrene, having formula B33C6H2(C&H3)n wasprepared by heating styrene with tribromobenzoyl peroxidein the absence of air. If it was found to contain 10.46%bromine by weight, find the value of n.Hexachlorophene, C13H6C16O2, is a germicide in soaps.Calculate weight percent of each element in compound.Determine the empirical formula of Kelvar, used in makingbullet proof vests, if it contains 70.6% C, 4.2% H, 11.8% Nand 13,4% O:(a) CHSNO2(c) CH9NO(b) CHSN20(d) CHSNOIn an organic compound of molar mass 108 gm mol C, Hand N atoms are present in 9: 1 :3.5 by weight. Molecularformula can be:CaH&N27c) CsH&N8.(b) CHoN(d) CaHNA poisonous compound cadaverine has 58.77% C, 13.81%H, and 27.42% N. Its molar mass is 102 g/mol. Determineits molecular formula.The chloride of a metal contains 71% chlorine by weightand the vapour density of it is 50. The atomic weight of themetal will be10.

According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out…

Answered: If 20% by weight of nitrogen is present…

If 20% by weight of nitrogen is present in a compound, the molecular weight of the compound may be (a) 144 (c) 100 (b) 28 (d140

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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: Isooctane, CgH18), is one of the main constituents of gasoline. Calculate the mass of carbon dioxide…

A: Given, How much amount of carbon dioxide gas produced by the complete combustion of 692 g of…

Q: Suppose you start with 1.80 g of MgCO3·5H2O, after complete dehydration how many grams of the sample…

Q: Grignard reagents, which contain a C—Mg bond, have thegeneral formula CH₃—(CH₂)ₓ—MgBr and are…

A: GIVEN: General formula CH₃—(CH₂)ₓ—MgBr To Solve: a)mass percentof Mg if x=0 b) mass percent of Mg if…

Q: the product 0.0054 ✕ 435.4 ?

Q: A) What is the mass in grams of 1.59 moles of aluminum oxide? (a) 64.1 g…

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

Q: 1. Use chemical symbols to generate the factor needed to convert the weight of the substance in uie…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Thirteen grams of titanium metal react with sixty grams of bromine. (i) Calculate the mass (in gram)…

A: The balanced chemical reaction is as follows: Ti(s)+2Br2(l)→TiBr4. The mass of Ti=13 g. The mass of…

Q: a) b) Br OH OH NHPh CI OH +E

A: The question is based on the concept of organic synthesis.We need to synthesize the product using…

Q: A binary compound of oxygen and an unknown element, x, has the formu XO and is 39.70 mass % oxygen.…

Q: Write the balanced equation, then outline the steps necessary to determine the information requested…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: Aqueous solutions of ammonia (NH3) and bleach (activeingredient NaOCl) are sold as cleaning fluids,…

A: Hey, since there are multiple sub-part questions posted, we will answer first three questions. If…

Q: 2. What is the gravimetric factor (a) For acquiring the weight of Ag:CrO, from the weight of AgCI?…

A: The analytical method that is employed for the quantitative determination of unknown substances in…

Q: 3. Balance the following equations: (a) SO2 (g) + O2 (b) P:Os (s) + H2O (1) (c) CH« (g) + Cl2 (9)…

A: While balancing the reaction, number of atoms in reactant should be equal to number of that atoms in…

Q: In a lab experiment, 8.21 g of phosphorus reacts with bromine to form 71.75 g of phosphorus…

A: According to the law of conservation of mass, the sum of mass of reactants and the sum of mass of…

Q: What is the Molecular Weight (Molar Mass) of Nutra-Sweet: C,H18N2O5?

A: Molar weight can be calculated by multiplying index of each atom to the atomic mass of atom and add…

Q: (d) For the reaction 2 NO + O2 → 2 NO2, how many moles of NO are needed to produce exactly 0.500…

A: moles of NO2 = 0.500 molesmoles of NO required =?

Q: What mass of CO is required to react with 651 g of Fe2O3 ?

A: The balanced chemical equation for the given reaction is,

Q: (a) Based on the following equation, calculate the mass of calcium phosphate required to produce…

Q: Balance the following chemiccal equation C12H26(s) + O2(g) --> CO2(g) + H2O(l) Combustion of…

A: We have to balance the following given chemical equation C12H26(s) + O2(g) --> CO2(g) + H2O(l)…

Q: What is the molecular weight of Fe (OH)3

A: Molecular weight of the compound is a quantity computed by multiplying the atomic weight (in atomic…

Q: OH (d) CN

A: The compound has one carbonyl and one ester groups are present . Now to reduce the ester group…

Q: What is the theoretical yield of iron in the reaction of Fe2O3 + 3CO → 2Fe + 3CO2, if 180.1 g of…

A: The objective of this question is to calculate the theoretical yield of iron (Fe) in the given…

Q: 1-Methylanthracene is a hydrocarbon. If 0.0887 g of the compound is burned in oxygen, 0.305 g of CO2…

A: mass of the hydrocarbon = 0.0887 g mass of CO2 produced = 0.305 g mass of H2O produced = 0.0499 g To…

Q: How many grams of O2 are needed to produce 5.00 moles of Fe2O3?

Q: Calculate the molecular weight of dinitrobiphenol oxide? 0.7g 12 g C, 10 mg CN?

Q: Uranium is used as a fuel, primarily in the form of uranium(IV) oxide, in nuclear power plants. A…

Q: A 0.250 g sample of hydrocarbon undergoes complete combustion to produce 0.845 g of CO2 and 0.173 g…

Q: (3) Calculate the formula weight of the following compounds from their formulas Ca3(PO4)2 , CSH1206…

A: The formula weight of an ionic compound is sum of atomic masses of individual atoms present in the…

Q: (a) How many moles of ammonium ions are in 0.642 g of ammonium carbonate? 8.04e21 X mol (b) What is…

A: We have to calculate the required quantities.

Q: The following diagram represents the reaction of A (red spheres) with B2 (blue spheres). Write a…

A: A balanced chemical equation is an appropriate representation of the chemical reaction. The left…

Q: (b) Reaction between carbon monoxide and hydrogen produced methanol as the only product. (i) Write a…

A: First we will write balanced chemical equation, then using stoichiometric calculations, find the…

Q: before 1959, oxygen was popularly used to define the unit of mol. in 1967, the international…

Q: 7.18 Write Q. for each of the a) Hydrogen chłoride gas reacts with oxygen gas to produce chlorine…

A: Qc or the reaction quotient gives the relative quantities of products and reactant present in a…

Q: Complete and balance the following equations: (a) NaOCH3(8) + H2O(I) (b) CuO(s) + HNO;(aq) (c)…

A: The complete balanced chemical equation for the given reactions are:

Q: 2. Balance the following equations by supplying the lowest whole numbers for w, x, y, and z: (a) w…

A: Since, Balanced reaction means that both side number of atom present in equal number. Thus,

Q: Reaction between carbon monoxide and hydrogen produced methanol as the only product. (i)…

Q: A sample of calcium nitrate crystal hydrate with its mass of 1.1808 g was heated at 150oC resulting…

Q: Balance the following equation: CGH6 (1) + 02 (g)→ CO2 (g) + H20 (g)

A: First balance the carbon atoms then then balance H and O

Q: If the theoretical yield for the synthesis of the pain reliever acetaminophen in a reaction was…

A: Recall the expression for percentage yield Percentage yield=amount of acetaminophen recovered during…

Q: The molecule of the week is Tetraethyl orthosilicate (TEOS) of which 120,000 metric tons (1 metric…

A: The compound Tetraethyl orthosilicate (TEOS) has a molecular formula of C8H20O4Si

Q: Balance the equation: N2(g) + O2(g) → N2O5(g)

A: Simply count the nitrogen and oxygen individually and then proceed further.

Q: Calculate the percent by mass of water in the following compounds. (a) Cr(NO3)3 • 9H2O (b) AsO2 •…

A: Here we have to calculate the percentage by mass of water present in the following given compounds.

Q: (a) OH NH N Log P=5.2 COOH (b) OH NH₂ OH ** HO HOOC H₂N Log P= 2.6 CH₂ (c) HOOC H₂N OH Log P= 5.7…

A: Molecular weight, also known as molecular mass or molar mass, is a fundamental property that…

Question

21
ETRY AND REDOX REACTIONS
If 20% by weight of nitrogen is present in a compound, the
molecular weight of the compound may be
(a) 144
(c) 100
(b) 28
d) 140
The mineral haematite is Fe2O3. Haematite ore contains
unwanted material called gangue in addition to Fe2O3. If
5.0 kg of ore contains 2.78 kg of Fe, What is percentage
purity of Fe;O;?
A polystyrene, having formula B33C6H2(C&H3)n was
prepared by heating styrene with tribromobenzoyl peroxide
in the absence of air. If it was found to contain 10.46%
bromine by weight, find the value of n.
Hexachlorophene, C13H6C16O2, is a germicide in soaps.
Calculate weight percent of each element in compound.
Determine the empirical formula of Kelvar, used in making
bullet proof vests, if it contains 70.6% C, 4.2% H, 11.8% N
and 13,4% O:
(a) CHSNO2
(c) CH9NO
(b) CHSN20
(d) CHSNO
In an organic compound of molar mass 108 gm mol C, H
and N atoms are present in 9: 1 :3.5 by weight. Molecular
formula can be:
CaH&N2
7c) CsH&N
8.
(b) CHoN
(d) CaHN
A poisonous compound cadaverine has 58.77% C, 13.81%
H, and 27.42% N. Its molar mass is 102 g/mol. Determine
its molecular formula.
The chloride of a metal contains 71% chlorine by weight
and the vapour density of it is 50. The atomic weight of the
metal will be
10.

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

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

When potassium chlorate is subjected to high temperatures, it decomposes into potassium chloride and oxygen.(a) Write a balanced equation for the decomposition.(b) In this decomposition, the actual yield is 83.2%. If198.5 g of oxygen are produced, how much potassiumchlorate decomposed?
A compound has the composition of 66.6% Carbon, 11.2% Hydrogen, and 22.2% Oxygen, by mass. If the molar mass is 144.2 g/mol, what is its molecular formula? (A) C4H8O (B) C8H16O2 (C) C8H16O (D) C6H12O4
How many grams of ironare produced from 1.00 Kg Fe2O3?The reaction is Fe2O3(s) + 3CO (g) → 2Fe(s) + 3CO2(g)
In the case of incomplete combustion, the mass of carbon in the compound is the sum of carbons in CO2 and CO. Question 2: When 0.1156 g of a compound that contains only carbon, hydrogen, and initrogen is burned, 0.1638 g of carbon dioxide and 0.1676 g of water are collected together with nitrous oxide (N₂O). (a) What is the empirical formula of the compound? (b) What is the molecular formula if the molar mass of the compound is 93.18 g/mol? (c) Write the balanced chemical equation for the reaction.
If the furnace initially contained 22.122.1 kg of solid calcium oxide and 10.110.1 kg P4O10(l)P4O10(l), how many kilograms of calcium phosphate were produced during the purification of the iron?
You are told by your instructor to go to the stock room and find a bottle of the chemical K3Cl. Does such a compund exist?
Balance the following equations: (a) SO2 + O2 ------>SO3 (b) Li2O(s) + H2O(l) ------> LiOH(aq) (c) Na + H2O ------> NaOH + H2
(a) What is the mass, in grams, of 4.62 1023 molecules of aspirin, C9H8O4? (b) What is the molar mass of diazepam (Valium(R)) if 0.05570 mol weighs 15.86 g? g/mol (c) How many moles of ammonium ions are in 0.645 g of ammonium carbonate?
In a reaction to produce NaF, 3.50 g of HF and 1.26 of Na2SiO3 are reacted according to the following: Na2SiO3 (s) + HF (aq) →H2SiF6 (aq) + NaF (aq) + H2O (l) (a) Balance the equation. (b) Calculate the theoretical yield of NaF. (c) If 0.792 g of NaF is formed, calculate the percent yield.
(a) Using NO2(g) as an example, show with dimensional analysis that the molecular mass and molar mass of a substance are numerically equal but have different units.(b) The number of atoms of oxygen in a 0.01800-g sample of O3(g) is equal to the number of molecules in a 0.06085-g sample of CxH6. Determine the value of x. (c) Vitamin C contains carbon, hydrogen and oxygen only. It is 4.579% by mass of hydrogen. One molecule of vitamin C contains 6 oxygen atoms and 8 hydrogen atoms.Determine the molecular formula of vitamin C.
Q3(B) Balance the following chemical equations.
What are the molecular masses of the following pharmaceuticals? (a) C33H35FN;O5 (atorvastatin, lowers blood cholesterol) (b) C„H„F;O‚S (fluticasone, anti-inflammatory) (c) C16H16CINO,S (clopidogrel, inhibits blood clots)