An organic compound contains carbon, hydrogen and nitrogen only. It is 15.044% by mass of nitrogen. One molecule of this organic compound contains 7 hydrogen atoms and 1 nitrogen atom. Determine the molecular formula of organic compound.

Q: The ratio of each element's mass in a compound changes when the size of the sample changes.

A: In this question we have to tell that above statement is true or false with explanation.

Q: sample of P4O10 with a mass of 44.9 g was treated in such a way that all of its phosphorus was…

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Q: Calculate the mass in grams of a sample of NO2 that contains 1.000 x 10^25 molecules.

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Q: How many hydrogen atoms are in a 12.2 g sample of ammonia (NH3) 29 x 10^24 57 x 10^24 31 x 10^23 14…

A: Mass of ammonia = 12.2 g  Molar mass of ammonia = 17 g/ mol  Moles of ammonia = mass/ molar mass…

Q: A sample of chlorine has a mass of 49.4 grams. How many Cl atoms are there in the sample?  atoms…

A: Chlorine mass of  = 49.4gm Calculate the  =  1 - how many cl atom of sample  2 - how many cl2…

Q: There has been increased evidence that human activities are causing changes in Earth's atmospheric…

A: The mass of oxygen used = 1.0 g. The molar mass of Oxygen = 16 g/mol.

Q: 1) Determine the number of moles in each sample: a) 38.2g sodium chloride b) 36.5g nitrogen monoxide…

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Q: A mole of a substance is defined as the amount of substance contained in 12 grams of carbon the…

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Q: One ounce of dark chocolate contains 0.25 g theobromine, a compound related to caffeine. Calculate…

A: GivenMass of theobromine = 0.25 gChemical formula of theobromine =C7H8N4O2Molar Mass of theobromine…

Q: Three samples of compounds we analyzed for the elemental compositions and the following results were…

A: The technique in which a sample of a compound is analysed for its elemental composition is known as…

Q: Galantamine is a drug given to patients who have Alzheimer's disease. Its chemical formula is…

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Q: Co(NO3)2

A: a) First find out the moles of Co(NO3)2 :  moles = ( formula unit / Avogadro number )  Moles = (…

Q: An organic compound consists of carbon, hydrogen and sulfur only. The percentage of carbon by mass…

A: For calculation of Molecular formula, first of all we calculate the % of each atom , empirical…

Q: In the laboratory, a student weighs out 0.0852 g of cobalt on balance.  How many atoms of cobalt are…

A: Molar mass of an element represents the mass of one mole of the element.

Q: What is the Mass pf Cl- found in the water sample (in grams)? %(w/w) Cl- in the water sample?…

A: Given data,Mass of titrant(AgNO3) used in trial 1=0.76gMass of AgNO3 used in trial 2=0.73gMass of…

Q: Determine the number of CH;Clz molecules in 25.0 g CH;Clz. a) 0.294 molecules c) 1.28 x 1027…

A: Number of moles of CH2Cl2  is equal to the mass of CH2Cl2 divided by its molar mass.

Q: What is the mass of carbon present in 0.196 grams of propane (C3H8)?

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Q: a) Determine the mass of O is that combined with 3.00 g of N in NO and NO2. b) Describe that NO and…

A: Two questions based on general chemistry, which are to be accomplished.

Q: 1. Acetylene, a gas used in welding torches, has two carbon atoms and two hydrogen atoms in a mole…

A: 1) Acetylene Molecular formula - C2H2

Q: Write the empirical formula corresponding to each of the following molecular formulas.       C8H10,…

A: Empirical formula of any compound is the formula in which the atoms are present in the lowest whole…

Q: What is the mass of one mole of ethyl alcohol

A: Mole is defined as a) Interms of particles :       1 mol = 6.022 x1023 particles/entities  Where…

Q: What is the number for each atom present in the empirical formula of a compound that has 59.98%…

A: The answer to the following question is-

Q: What percentage of atoms in the molecule represented in the following formula are nonmetals?…

A: % of non-metal atoms = 100 x number of non-metal atoms/total number of atoms

Q: How much Mg is present in 0.7462 g MgO?     60.31 g     0.5000 g     0.4500 g     0.2962 g

A: Given : Mass of MgO = 0.7462 g Molar mass of MgO = Atomic mass of Mg + Atomic mass of O = 24.3 + 16…

Q: Calculate the mass in grams of 1.31×1024 molecules of propylamine. The chemical formula for…

A: Mole : It is the unit of measurement of the amount of substance. It's SI unit is mol. One mole of…

Q: The density of octane, C8H18C8⁢H18, is 0.703 g/mL0.703 g/mL. Calculate the number of moles of octane…

A: Given Data :  1.density of octane = 0.703 g/mL  2. Volume = 49.1 mL  Molar mass of octane = 114.23…

Q: The average nicotine (C10H14N2) content of a Camel cigarette is 1.93 mg. Suppose an individual…

A: The average nicotine (C10H14N2) content of a Camel cigarette is 1.93 mg.

Q: Mass of product…

A: Number of moles is defined as the amount of the substance divided by the molecular weight of the…

Q: A sample of oxygen has a mass of 25.2 grams. How many O atoms are there in the sample?  atoms How…

A: Calculation given as follows

Q: Determine the number of atoms of each element in the empirical formula of a compound with the…

A: Given: Mass percent of C = 65.08 % Mass percent of H = 10.14 % And mass percent of O = 24.77 %…

Q: A compound contains 70.6% C, 5.9% H, and 23.5% O by mass. The molecular mass of the compound is 136…

A: Given :-  % by mass of C = 70.6 % % by mass of H = 5.9 % % by mass of O = 23.5 %  Molecular mass of…

Q: A mixture contains 78% apatite (Ca3(PO4)2 . CaF2). The rest of the mixture does not contain…

A: Given: Mass percent of Ca3(PO4)2.CaF2 = 78% And there is no P in the mixture apart from that in the…

Q: Fullerenes are molecules composed of only carbon atoms. One fullerene is C60 a carbon molecule…

A: The number of moles of a substance is defined as the mass of the substance upon its molar mass.

Q: An unknown organic compound contains 41.4 % carbon, 3.47 % hydrogen, and 55.1 % oxygen by mass. A…

A: Given data,Percentage of C=41.4%Percentage of H=3.47%Percentage of O=55.1%Moles of compound…

Q: The NASA Dawn mission recently measured the surface of Ceres, a large asteroid between Mars and…

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: You analyze a sample of a compound you made in the lab and find that it has a percent composition by…

A: Answer: Empirical formula is C4H2O and three answers from the  given list are C4, H2, and O.

Q: 1. Spaghetti is one of the favorite foods of kids and it has several ingredients. The following…

A: Atomic mass of Carbon = 12g/mol Atomic mass of Hydrogen = 1g/mol Atomic mass of oxygen = 16g/mol…

Q: B. TRUE OR FALSE: Read each statement carefully. Write TRUE if the statement is correct and FALSE if…

A: Percentage composition gives a brief ideas about each elemental composition as follows.

Q: How many lithium iodide formula units, Lil, have a mass equal to 4.24 g? 1.91 x 1022 formula units…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Calculate the mass of copper that can be made from the combination of 15.0 g aluminum with 25.0 g…

A: Mole of Al in 15.0 g Aluminum is calculated as,                                               Mole…

Q: Using the following equation: Fe:O:(s) + 3H:(g) → 2Fe(s) + 3H:O(1) How many grams of iron,Fe, can be…

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Q: How many potassium ions are in 53.0 g of K3PO4? - 4.51 x 10^23 - 8.19 x 10^23 - 5.01 x 10^22 - 1.51…

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Q: Determine the chemical formula of each compound and then use it to calculate the mass percent…

A: Ionic compounds are formed by the transfer of electrons from cations to anions. In the ionic…

Q: Most fertilizers consist of nitrogen-containing compounds such as NH3, CO(NH2)2, NH4NO3, and…

A: Formula to calculate % composition:Mass % of element = mass of the element on the given formula /…

Q: A large number of atoms of the same kind is

A: Matter is classified into following types  1 Pure  substances        2. Mixture    1. In Pure…

Q: Nitrogen makes up what fraction of the mass of the hum Body? Nitrogen makes up what percentage of…

A: 1.Fraction of Nitrogen in mass of human body  70 kg  of Nitrogen is 1 fraction   2.2 Kg   of…

Q: Analysis of a 40 g sample of water revealed a mass percent for lead of 3.23%. Calculate the number…

A: Percentage by mass of the substance in the solution mixture can be expressed as the ratio of mass of…

Q: The active ingredient in photographic fixer solution contains sodium, sulfur, and oxygen. Analysis…

A: Empirical formula: The empirical formula of a chemical compound tells us about the relative ratios…

Q: Results from the elemental analysis of Compound Y indicate that this compound contains 19.2 %…

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Q: Which of the following contains the largest number of atoms? Select one: a. 1.0 mol of water (H2O)…

A: The numbers of atoms present in any substance can be calculated by help of Avogadro's Number. One…

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.