A 0.370-mol sample of a metal oxide (M₂O₃) weighs 55.4 g.(a) How many moles of O are in the sample?(b) How many grams of M are in the sample?(c) What element is represented by the symbol M?

Q: What is the molar mass (g/mole) of cream of tartar (KHC4H4O6)?

A: The chemical formula of cream of tartar is KC4H5O6. To determine its molar mass, need to add the…

Q: (a) If an automobile travels 225 mi with a gas mileage of 20.5mi/gal, how many kilograms of CO2 are…

A: The combustion equation for octane can be written as: Distance = 225 mi Mileage = 20.5 mi / gallon…

Q: Washing soda, a compound used to prepare hard water forwashing laundry, is a hydrate, which means…

A: Molar mass is the sum of all the individual atoms of the compound. So, Na2CO3 molar mass is…

Q: One of the hydrates of NazCr0, is sodium chromate decahydrate. A 56.6 gram sample of NazCr04 10 H,O…

A:

Q: One of the hydrates of Na2CO3 is sodium carbonate decahydrate A 55.6 gram sample of Na2CO3  10 H2O…

A: b b

Q: Beryllium is a light metal used to fabricate transparent X-ray windows for medical imaging…

A: Number of moles = mass/molar mass given mass of Be = 3.24g molar mass of Be = 9.01g/mol Number of…

Q: If 5.00 moles of MgO were reacted with excess moles of P,Ojo, what mass of Mg(PO4)2 would be…

A: Number of moles of MgO = 5.0 moles

Q: A sample of hydrate was heated thoroughly. How many waters of hydration are there if the anhydrous…

A:

Q: Methanol isobutene If 45.0 kg of methanol are allowed to react with 70.okg of isobutene, what is the…

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

Q: 5. How many moles are in 6.24 x 1021 molecules of CaSO,?

A: According to Avogadro law  1 mole = 6.02* 1023 molecule

Q: A compound of carbon and hydrogen consists of94.34% C and 5.66% H, by mass. The molecular massof the…

A: Calculate the mass of C in the compound. Mass of C = 94.34100(178)                  =168 g Calculate…

Q: Combining 0.294 mol of Fe2O3 with excess carbon produced 11.5 g of Fe. What was the theoretical…

A: Write the balanced equation for the given reaction,

Q: What is the mass percent of iron in iron(II) oxalate, FeC2O4?

A: From the molecular formula we can get the molar mass from there we can get the weight of the…

Q: Hydrogen peroxide breaks down, releasing oxygen, in the following reaction: 2H,0,(aq) – 2H,O(1) +…

A: The given reaction is as follows: 2H2O2(aq) →2H2O(l) +O2(g) The moles of O2 produced = 4.10 mol The…

Q: (a) What is the chemical formula of eugenol, the main contri butor to the aroma of cloves? (b)…

A: a) We have to find chemical formula of eugenol, the main contributor to the aroma of cloves.…

Q: The study of sulfur-nitrogen compounds is an active area of chemical research, made more so by the…

A: First determine the moles of sulfur. Given mass of sulfur is 2.288g. Then determine the moles of…

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

A:

Q: In mammals, lactose (milk sugar) is metabolized to glucose (C6H12O6), the key nutrient for…

A: Given :  Calculate the mass percent of C in glucose

Q: 3.124 What mole ratio of molecular chlorine (Cl2) to molecularoxygen (O2) would result from the…

A: The mole ratio of the reaction has to be given,

Q: How many atoms of Mg, O, and H are represented by the notation 3 Mg(OH)2?

A: To find: The number of atoms of Mg, O and H are represented by the notation 3 Mg (OH)2

Q: The molar mass of caffeine is 194.19 g. Is the molecularformula of caffeine C4H5N2O or C8H10N4O2?

A: Caffeine is a natural stimulant most commonly found in tea, coffee and cacao plants. It works by…

Q: Progesterone, a female hormone, has the formula C21H30O2. In a 25.00 g sample of this compound, a.…

A:

Q: Caffeine has the formula C8H10N4O2 . If an average cup of coffee contains approximately 125 mg of…

A: In the international system of units the mole (symbol: mol) is the quantity unit for measurement…

Q: How many moles of Fe2O3 are in 239 g of the compound?

A: Given: Mass of Fe2O3 = 239.0 g Molar mass of Fe2O3 = 159.69 g/mol

Q: How many grams of glucose (C6H12O6) are in 3.55 moles of glucose?

A: Given  Number of mole of glucose = 3.55 mole  Mass = ?

Q: Provide answer to the following

A: Density of a particular substance is the compactness of atoms present in it. Density can be…

Q: The metal, Pellissippium (Pe), has a molar mass of 65.01 g/mol. What is the mass of 2.300 moles of…

A: The mass of metal, Pellissippium (Pe) has a molar mass = 65.01 g/mol. The chemical formula of…

Q: There are 12.6 grams of sugar. With the molecular formula C12H22O11, what is the molar mass of this…

A:

Q: A chloride of silicon contains 79.1 mass % Cl. (a) What is theempirical formula of the chloride? (b)…

A: Empirical formula It gives the simplest whole number ratio of elements present in a compound. It is…

Q: a. What is the mole ratio between BaSO4 and Fe,(SO3? b. How many moles of BaSO, can come from 0.557…

A: The ratio between the amounts in moles of any of the two compounds involved in a chemical reaction…

Q: A sample of 7.2 moles of the ionic compound, potassium dichromate, K2Cr2O7, is present. How many K+…

A: Applying concept of avogadro number. 1 mole = 6.022× 1023 atom/ molecules/ ions

Q: Given the following set of experimental data for determination of the number of water molecules in a…

A:

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

A:

Q: A compound has a molar mass of 28.06 g. What is its chemical formula if carbon and hydrogen are…

A: In this question, chemical formula of the compound is to be determined which consists of carbon and…

Q: What is the molar mass of C3H7OH?

A: Given:- We need to find the molar mass of C3H7OH

Q: If 7.08 g of mercury (Hg) and 0.57 of oxygen are obtained when 7.65 g of HgO decomposes , what is…

A: We have to calculate the percentage composition of the compound.

Q: 4.00g of a metal carbonate MCO, gives 1.91g of MO on heating to constant mass. Identify metal M in…

A: The ratio of the substance to the molar mass of the substance is known as the number of moles. It is…

Q: The molecular formula of allicin, the compound responsiblefor the characteristic smell of garlic, is…

A: Molar mass of a compound is the sum total of molar masses of the elements present in that particular…

Q: 2. How many molecules of Carbon dioxide are there in 345g of CO2?

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: (a) Combustion analysis of toluene, a common organicsolvent, gives 5.86 mg of CO2 and 1.37 mg of…

A: Mass percent is given by the ratio of mass of the substance to that of the total mass.

Q: Coffee has the following formula C8H13N a) What is the molar mass of Coffee? b)How many moles of…

A: Molar mass is the sum of the atomic masses of each atom present in a molecule. atomic mass of C = 12…

Q: How many moles of H2SO4 do you have if there are 1.64 multiplied by 10E12 molecules of H2SO4

A:

Q: One of the hydrates of CoSO4 is cobalt(II) sulfate hexahydrate . A 71.1 gram sample of CoSO4 6 H2O…

A: Answer

Q: 2) If 28.9g of Lithium Nitride react, how many grams of Magnesium Carbonate are needed to react with…

A:

Q: What is the molecular mass of chloroform if 0.0275 mol weighs 3.28 g?

A: Given: Number of moles = 0.0275 mol mass of chloroform=3.28g To find: The molecular mass of the…

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) =…

Q: The chemical formula for the anticoagulant heparin is C₁₂H₁₉NO₂₀S₃. What is the mass in grams of…

A: The mass of a substance is calculated as follows,                  Mass = No. of moles × Molar mass…

Q: Use the balnced equation: 4Al + 3O2 ⇒ 2Al2O3 If I want to produce 16 moles of Al2 O3 , how many…

A: Given balanced equation is -  4Al + 3O2 → 2Al2O3

Q: How many particles of glucose are present in 0.53 moles of C,H,2O6? (what kind of particles are…

A:

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.