Arrange the following in order of INCREASING number of moles. (A) 30.00 g of C6H5N (B) 25.00 g of NH3 (C) 1.385 x 1024 formula units of KMN04

Q: Iron ore is impure, Fe2O3. When Fe2O3 is heated with an excess of carbon (coke), metallic iron and…

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Q: Acetylene gas is 92.3% carbon and 7.7% hydrogen (by mass), and its miler mass is 26 g/mol. What is…

A: A numerical problem based on molecular formula determination, which is to be accomplished.

Q: A chemical compound containing only carbon, hydrogen and oxygen is found t composed of 57.43% C and…

A: Empirical formula:  Simplest mole number ratio of atoms present in a compound is called is called…

Q: For this question, let's assume that both the number of moles (0.438 mol Co(No3)2 and the mass of…

A: We have to calculate number of moles and mass of solute [ Co(NO3)2 ].

Q: If an oxide of chromium is 48% oxygen by mass, what is its empirical formula?

A: Given Percentage of oxygen = 48 %  Let Total percentage  = 100%  Then % of chromium = ( 100 -  48 )…

Q: The percent composition by mass of an unknown chlorinated hydrocarbon was found to be 37.83% C,…

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Q: What is the unit conversion required to convert 10.00g of gold to moles?

A: Molar mass of a substance means mass of one mole of a substance and it is equal to the atomic or…

Q: when 47.8g of KClO3 is completely decomposed what is the theoretical yeild in grams of O2?

A: Given,Mass of KClO3 = 47.8 g Moles of KClO3 can be calculated as:

Q: Q1: Calculate the mass needed to prepare 2.0L of 0.05M AGNO, (M. Mass 169.87g/mol) from its primary…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: The number of molecules in a sample of NH3 weighing 8.50g?

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Q: The percent by mass of copper(I) in Cu,CO3 is %.

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Q: Calculate the mass percent composi - tion of oxyaen in AizCS04)s, in Šignificant figures.

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Q: che percentage of C

A: Malachite is the carbonate hydroxide of copper which is green in color, which formed by the ore…

Q: A shot of espresso contains roughly 64mg of caffeine, C8H10N4O2.  - Provide the molar mass of…

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Q: This organic compound consists of 54.4% carbon, C and 9.1% hydrogen, H, while the remaining percent…

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Q: The percent by mass of iron (III) in Fe₂S3 is %.

A: we have to calculate the mass percentage of Fe(III)

Q: Given 90g of pure Fe2O3 calculate how many moles of iron(iii) oxide it contains

A: Given :- mass of Fe2O3 = 90 g  To be calculated :- number of moles of Fe2O3    number of moles =…

Q: If the student used 3.103 g of MoOs, how many moles of MoO3 were present?

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Q: What is the mass percentage of C in morphine, C,,H1,NO,? Provide an answer to two decimal places.

A: We have many molecules around us. They all are composed of different elements and have different…

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

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Q: If 7.80x10¹⁸ atoms of a substance weighs 62.5g what is the molar mass of the substance in units of…

A: The number of atoms present in one mole of any substance is called as Avogadro's number which is…

Q: molar mass

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Q: Aspirin (C9H8O4) is synthesized by reacting salicyclic acid (C7H6O3) with acetic anhydride (C4H6O3).…

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Q: A binary compound of carbon and hydrogen has the following percentage composition: 82. 66% carbon,…

A: Given a binary compound of carbon and hydrogen. Carbon % = 82.66 %Hydrogen % = 17.34 %

Q: A florist prepares a solution of nitrogen-phosphorus fertil-izer by dissolving 5.66 g of NH₄NO₃ and…

A: Given: Mass of NH4NO3 = 5.66 g Mass of (NH4)3PO4 = 4.42 g And volume of final solution = 20.0 L

Q: (h) Propyne is a hydrocarbon gas that is often used as a substitute for acetylene in welding,…

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Q: Nitrogen and hydrogen combine at a high temperature, in the presence of a catalyst, to produce…

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Q: Provide the coefficient of all of the molecules where indicated when the following equation is…

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Q: What mass of N2H4, in grams, is needed to react completely with 27.9 g of H2O2?

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Q: Iron ore is impure, Fe2O3. When Fe2O3 is heated with an excess of carbon (coke), metallic iron and…

A: Mass of sample=938 gMass of Iron obtained=523 gmass % of Fe2O3=?

Q: The empirical formula for C6H12 is-

A: Applying concept of empirical formula.

Q: Taking 28,6 g of Na2CO3.xH2O, it is heated in a burner flame. After the heating process, the mass of…

A: The reaction when Na2CO3.xH2O is heated is as follows: Na2CO3.xH2O →Na2CO3+xH2O

Q: Perform the following conversions: 0.043 mole MgCl, g MgCl, 73g SO, mole SO, 3.0 mole CH, molecules…

A: 1) Given : Moles of MgCl2 = 0.043 mol Molar mass of MgCl2 = Atomic mass of Mg + Atomic mass of Cl X…

Q: Which contains more, 6.35 X10E23 molecules of sodium hydroxide or 44.32 g of sodium hydroxide?

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Q: The percent by mass of cobalt(III) in CoI3 is %.

A: Compound = CoI3 Molar mass of Co = 59.0g/mol Molar mass of I = 127g/mol Molar mass of CoI3 =…

Q: Given 10g of MgCl2 and 16g of AgNO3 and actual yield of 1.099g of AgCl, what is the theoretical…

A: Reaction equation:

Q: If an oxide of magnesium is 40% oxygen by mass, what is its empirical formula?

A: here, we have to calculate the empherical formula of oxide of Magnesium. we know the molar masses,…

Q: What volume (in ml) of a 0.25OM KMnOtac.contains 0 500g KMnO,2 What are the number of moles of…

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Q: For the reaction represented by the equation 2H2 + O2 → 2H2O, what is the mole ratio of H2 to H2O?

A: Mole is a standard unit for measuring  large quantities of very small entities such as molecules.…

Q: C4H7O if the molar mass of the molecular formula is 284.44 g/mole, determine the molecular formula

A: The given molecular formula is C4H7O To determine the molecular formula. Empirical formula mass = 4…

Q: What is the percent by mass of oxygen in aspirin (C₉H₈O₄)?

A: The molecular weight of aspirin (C9H8O4) is  (12×9+1×8+16×4)=180 gm/mol The oxygen present in…

Q: ne theoretical yield of

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Q: :The empirical formula of P401ois

A: First question is graded. I will solve second question for you. Empirical formula refers to the…

Q: How could you calculate the Avogadro’s number [NA] for an organic compound if you know the following…

A: Avogadro's number [NA] refers to the number of constituent particle such as atoms, molecules, ions…

Q: Given the unbalanced chemical equation, C5H12(l) + O2(g) → CO(g) + H2O(l), which one of the…

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Q: Given: Avogadro's number=6.022 E23 Convert 10.5 moles of Compound M (molar mass 250.0 g/mol), using…

A: Answer to the following questions can be given as follows -

Q: The percent by mass of copper(II) in Cu3(PO4)2 is %.

A: Introduction- The mass percent of any element is calculated by the ratio of mass of the element in…

Q: If an oxide of magnesium is 50% oxygen by mass, what is its empirical formula?

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Q: Mesitylene, a hydrocarbon found in crude oil, has an empirical formula of C3H4 and an experimentally…

A: The formula weight of the empirical formula is: C3H4 = 3×(Atomic mass of C) + 4×(Atomic mass of H) =…

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.