Write the chemical formula for 1 mol of compound X containing 2 mol Al and 3 mol O.   X= ?

Q: How many moles of H2 and N2

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Q: Suppose a 17.8640 g sample of a NaCl and KCl mixture contains 3.5286 g of NaCl. What is the percent…

A: The mass percent of the component in the mixture can be calculated by using the below formula- Mass…

Q: 6) o.025 MOL OF AN IONIC COMPOUND AlaSp CONTAINS o.05 MOL CATIONS AND 4.5×1022 anions. Given: molar…

A: Note: since you have posted a question with multiple sub parts. We will solve only the first three…

Q: Determine the molar mass of the hydrate CaCl2⋅2H2O.CaCl2⋅2H2O. molar mass:   g/mol

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Q: The number of moles in 37.80 g of C2H6O (molar mass = 46.1 g/mol) is?

A: Given information,       Mass of C2H6O is 37.80 g.     Molar mass of C2H6O is 46.1 g/mol.

Q: A crucible is placed on a balance and is found to have a mass of 26.639 grams a sample of…

A: Mass of crucible = 26.639 g Mass of crucible + mass of Na2SO4·xH2O = 27.085 g Therefore mass 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: A sample of 0.3220 g of an ionic compound containing the bromide ion (Br−) is dissolved in water and…

A: Calculate the number of moles of AgBr formed. Number of moles = Given massMolar massNumber of moles…

Q: What amount in moles is 4.77x10^25 (to the power of 25) molecules?? 1.2.87x10^49 mol 2.79.2 mol…

A: Molecules = 4.77 x 1025

Q: A crucible is placed on a balance and is found to have a mass of 26.639 grams a sample of…

A: Since on heating the compound, the mass of water will be lost as it will get vaporised  Hence the…

Q: Given the equation 2 NH3 -> N2 + 3 H2, convert 7.46 mol N2 to moles of H2. Round to the nearest…

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Q: The complete combustion of a hydrocarbon produced 352 mg of CO2 and 216 mg of H2O. What is the…

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Q: What mass of carbon dioxide is produced from the complete combustion of 4.70*10-3g of methane?

A: The balanced chemical equation for combustion of methane is given by

Q: Consider the chemical reaction N2 + 3H2 = 2NH3    If one begins with 0.25 mole N2  and excess…

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Q: Given the equation 2 NH3 --> N2 + 3 H2, convert 5.46 mol N2 to moles of H2. Round to the nearest…

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Q: What is the mass of 8.00 molesmoles of magnesium chloride, MgCl2MgCl2? Express your answer with the…

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Q: Molarity is used to measure concentration in chemistry. What are the two units used that make up…

A: -> Molarity is number of moles present in one Litere of solution.                          (or)…

Q: 1-Calculate the mass of compound required to prepare 100.00 mL of a 1.40x102 M CuCl2 ?.

A: Molecular weight of CuCl2 = 134.45 g mol-1 Formula Used 1. No of moles = volume × concentration 2.…

Q: A 3.0-mol sample of KClO3 was decomposed. How many moles of O2 are formed assuming 100% yield?…

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Q: S + 6 HNO3 --> H2SO4 + 6 NO2 + 2 H2O In the above equation how many moles of water…

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Q: How many moles of Ba(OH)2 are present in 215 mL of 0.800 mol L Ba(OH)2? Express your answer…

A: Given: Volume of Ba(OH)2 = 215 mL = 0.215 L Concentration of Ba(OH)2 = 0.800 mol/L

Q: traight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula…

A: Given general formula is, CnH2n+1COOH And n=1  So, Molecular formula becomes CH3COOH We know ,…

Q: What is the number of formula units in a 1.10 mol sample of NH4NO3?

A: Given:Moles of NH4NO3 = 1.10Solution:1 mol formula units contain Avogadro number of formula…

Q: Given the equation 2 NH3 -->  N2 + 3 H2, convert 5.25 mol N2 to moles of H2.  Round to the nearest…

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Q: Balance the following equation.   ___N2H4(g) + ___H2O2(g) → ___N2(g) + ___H2O(g)

A: A chemical reaction is balanced when each element involved in the reaction has the same number of…

Q: Methanol can be formed by the following UNBALANCED equation below. What is the mass in grams of…

A: We have to calculate the mass in grams of methanol.

Q: Complete the table below for calculating the molar mass of the compound phosphorus triiodide. Molar…

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Q: What is the mass percent of ethanol (CH3CH2OH) if 0.0789 moles of ethanol is added to 0.271 kg of…

A: Given :- number of moles of ethanol = 0.0789 mol  Mass of water = 0.271 kg  To calculate :-  Mass…

Q: Suppose a student starts with 2.4464 g of a sand mixture and separates the components into 1.3012 g…

A: According to the question, we had a sand mixture consisting of NaClNaCl, CaCO3CaCOX3, and SiO2SiOX2.…

Q: How many grams of NaCl should be produced if you start with 1.0 g of sodium bicarbonate. This…

A: Moles is defined as Mass of compoud divided by it's molar Mass. Molar mass of NaHCO3 = 84.007g/mol…

Q: OAn organic compound consists of carbon, hydrogen and nitrogen only. Complete combustion of a…

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Q: The empirical formula for a compound is CHN. What is the molecular formula of this compound if 0.1…

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

Q: A 2.69 gram sample of a KCl and KClO3 mixture was found to contain 0.01268 mol of KClO3. What is the…

A: It is a problem based on general chemistry. Here we will find the percent of KClO3 in the mixture by…

Q: 1.) 70.90 g/mol 26.98 g/mol 2 Cl2@) + 3 Al(s) > 2 AICI3(s) 133.3 g/mol a. Calculate the theoretical…

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Q: What is the formula to calculate the molar mass of H3COH with the units g/mol?

A: Molar mass is numerically equal to the molecular weight since molecular weight is sum of all…

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.