Polymer poly ethyl cyanoacrylate, also known as "Super Glue", has the following composition: 57.59% carbon, 11.20% nitrogen, 5.64% hydrogen, and 25.57% oxygen. Calculate the empirical formula for poly ethyl cyanoacrylate.

Q: A 7.514 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis…

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Q: Naturally occurring chlorine is 75.78% 35Cl (atomic mass 34.969 u) and 24.22% 37Cl (atomic mass…

A: Given :  Atomic mass of lighter isotope i.e 35Cl (A1) = 34.969 u  Percentage abundance of lighter…

Q: 11) Determine the molecular formula and the empirical formula. Grey = C, Red = O, White = H. (Can…

A: Introduction Molecular formulae = The number of atoms of each element in one molecule of a substance…

Q: Element A has a molar mass of 52.26 g, element D has a molar mass of 28.72 g, and element E has a…

A: The molar mass of element A is 52.26 g.The molar mass of element D is 28.72 g/mol.The molar mass of…

Q: A 13.04 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis…

A: Mass of sample = 13.04 g  Mass of CO2 = 19.12 g  Mass of H2O = 7.828 g  Number of moles of C  =…

Q: 15. The solubility of lithium chloride (LiCI) in water is 74.5g / 100mL at 10 °C and 89.8 g / 100mL…

A: Answer : (15):-  Answer : (16):-   Answer : (17):-  (a)Plan :- The pentanol CH3​CH2​CH2​CH2​CH2​OH…

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A: Given that, %C= 40% %H=6.7% %O=53.3% Molar mass of Fructose=180.1 g mol-1 Then,

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A: Given question related to calculation of atomic mass of element from percent abundance of isotopes.…

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A: Given, we have 40.08 atomic mass and they exist naturally in proportions of 96.941%, 0.647%, 0.135%,…

Q: A 14.40 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis…

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Q: Variations in average atomic mass may be observed for elements obtained from different sources.…

A: Given information: Assuming Mass of boron sourced from turkey = 10.0129 amu Mass of boron obtained…

Q: An Organic compound contains 59.00% by mass C, 7.15% by mass H, 7.65% by mass N, and 26.20% by mass…

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Q: You have a compound containing 15.32 % silicon, 49.76% Zr (Z = 40), and 34.91 % oxygen.  What is the…

A: Given , Silicon = 15.32 % Zirconium = 49.76 % Oxygen = 34.91 %

Q: he average atomic masses of some elements may vary, depending upon the sources of their ores.…

A: Explanation Solution Two substances, the percentage of each isotope, are unidentified. As both…

Q: Ibuprofen, a potent headache remedy, has a molar mass of about 206 grams and has been determined to…

A: Empirical formula represents the simplest whole number ratio of atoms of elements present in the…

Q: Iron exists in nature as a mixture of predominantly three isotopes: ⁵⁴₂₆Fe (53.94 amu), ⁵⁶₂₆Fe…

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Q: The mass spectrum of an organic compound shows the relative abundances of M to be 87.83% and M+ 1 to…

A: Relative abundance/intensity of M+1 peak = 11.40 % Relative abundance/intensity of M peak = 87.83 %…

Q: bsorber Sample A 9.711 gram sample of an organic compound containing C, H and O is analyzed by…

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Q: A 6.949 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis…

A: Given,mass of unknown organic compound = 6.949 gmass of CO2 = 9.854 gmass of H2O = 6.052 gmolar mass…

Q: Polyisobutylene is a synthetic elastomer, or rubber. The corresponding monomer is isobutylene, which…

A: Given, molecular formula C4H8

Q: Total moles of magnesium

A: We have to find moles of Magnesium

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A: Given - Exact masses of isotopes of Mg 25Mg = 24.9858 amu 24Mg= 23.9850 amu. 26Mg = 25.9826 amu. To…

Q: An alcohol is 70.57 % C and 5.935 % H by mass. The rest is oxygen. What is the empirical formula of…

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Q: 6. Europium (Eu) has two stable isotopes, 151 Eu and 153 Eu, the masses of which are 150.920 u and…

A: The objective of the question is to determine the percent natural abundance for the heavier…

Q: 1 mole of 63Cu atoms has a mass of about 63 grams. Explain why the number below Cu on the periodic…

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Q: An atom consists of two isotopes, the first with an atomic mass of 15.8967 amu and the second with…

A: Atomic mass of first Isotope = 15.8967 amu Atomic mass of second Isotope = 16.8245 amu Average mass…

Q: Balance the following equations by putting the coefficients in front of the chemical formulas:…

A: Given reactions,    Hg(NO3)2(aq) + NaBr(aq) ---> HgBr2(s) + NaNO3(aq)    LiNO3(s) --->…

Q: Table 1: Molar masses of common rock forming elements Atomic Mass (amu) 28.09 Element Oxide (1)…

A: We can identify the valency of oxide are as follows Suppose the oxide formula is = MaOb(=2) Here,…

Q: Yzed 3.725 g of an unknown mixture of NaCl, SiO2, and CaCO3. You isolated 1.108 g NaCl, 0.848 g…

A: Given information- total mass of mixture = 3.725 g  mass of NaCl = 1.108 g  mass of SiO2   = 0.848 g…

Q: A laboratory analysis of an unknown sample yields 73.13% carbon, 7.38% hydrogen, and 19.49% oxygen.…

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Q: Calculate the precise mass of each ion to five significant figures. Unless otherwise indicated, use…

A: Given is the isotope of C which has a molar mass of 13 u the molar mass of a most abundant isotope…

Q: It is commonly known as fruit sugar. Its percentage composition is 40.0% carbon, 6.71% hydrogen, and…

A: Given Element %  of  carbon(C) = 40.0 % = 40.0 g Element %  of  hydrogen(H) = 6.71 % = 6.71 g…

Q: The element silicon has 3 naturally occurring isotopes, 28Si (27.976927 u); 29Si (28.976495 u) and…

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Q: A 4.455 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis…

A:

Q: 25.  The average atomic masses of some elements may vary, depending upon the sources of their ores.…

A: Given,Actual mass of naturally occurring boron 10B, 10.0129 amu and 11B, 11.00931 amu.The actual…

Q: A 20.77 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis…

A:

Q: An unknown compound contains 53.34% rhodium, 9.338% carbon, and the rest is oxygen. a) If you assume…

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Q: A sample of a compound is found to contain 6.17 g carbon, 1.04 g hydrogen and 18.16 g chlorine. Its…

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Q: A 2.260 gram sample of an organic compound containing C,H, and O is analyzed by combustion analysis…

A: Empirical formula represents the simplest whole number ratio of atoms of elements present in the…

Q: Iron exists in nature as a mixture of predominantly three isotopes: 54 426Fe (53.94 amu), 5626Fe…

A: It is given that Iron exists in nature as a mixture of predominantly three isotopes: 5426Fe (53.94…

Q: A 7.194 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis…

A: We have to predict the empirical and molecular formula.Given, The mass of organic compound = 7.194…

Q: Polyisobutylene is a synthetic elastomer, or rubber. The corresponding monomer is isobutylene, which…

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Q: A 4.600 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis…

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Q: When 1.717 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 5.805 grams…

A: Answer:The formula in which all the atoms are represented in their simplest integer ratio is called…

Q: The average atomic masses of some elements may vary, depending upon the sources of their ores.…

A: Introduction: Percentage abundance: The percentage abundance of an element is defined as the ratio…

Q: A compound is 32.88% C, 4.14% H, 19.18% N and 43.80% O by mass, and it has a molar mass of 219…

A:

Q: A 3.939 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis…

A: The question is based on mole concept. we have been given the product of combustion of the compound.…

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.