Mass of oxygen = 0.49g- 0.33g = 0.16g Number of moles = given mass / molar mass Number of moles of oxygen = 0.16/ 16  = 0.01 mol Molar Mass of magnesium = 24.3g Moles of magnesium = 0.33g / 24.3g = 0.0135 mol   Moles of magnesium 0.0135 1.35 3 4 ------------------------      = _____________  =  ____________ x       ________ = ___ Moles of oxygen 0.01 1 3   3 The ratio between the moles of magnesium used and the moles of oxygen uses is 4/3. Based on your experimental data, write the empirical formula for magnesium oxide. Is this the molecular formula or the simplest formula? Explain how you know this.

Q: Calculate how many grams of lead (II) iodide (MM=461.01 g/mol) can be formed from 1.385 g of sodium…

A: Given:Molar mass of PbI2  = 461.01gMolar mass of NaI  = 149.89gmass of NaI reacted = 1.385gAlso,The…

Q: If the mass of Mg is 0.19g and the product mass is 0.74g. What is the moles of Mg in the product

A: In this question, we have to calculate the number of moles of Mg produced. 1 mole of any substance…

Q: Compound Weight (in grams) Molecular Weight Barium hydroxide 10 171.34 g/mol Sodium chloride 25…

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Q: A chemist requires 0.471 mol Na2CO30.471 mol Na2CO3 for a reaction. How many grams does this…

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Q: 49. How many moles are there in 500 g indigo, C16H10N202, a blue dye. c. 1.15 X10E24 mol a. 1.90 mol…

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

Q: .Calculate the number of moles of hydrogen chloride produced from 10 moles of hydrogen. H2(g) +…

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: USING the palalicEu equatiOTT 1N2 3H2 2NH3 Determine the number of moles of NH3 formed from the…

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Q: Use the following data and steps below to calculate the formula of the copper chloride hydrate.…

A: Given: Weight of empty aluminum pan      = 0.4661 g Weight of CuCl2. x H2O sample       = 0.8390 g…

Q: What is the mass in grams for 0.198 mole mercury(III) bromide?  Two decimals 0.749 mol calcium…

A: Solution of these questions depends on mole concept. One mole of any compound contains avogadro…

Q: A sample of sodium carbonate, Na2CO3, weighs  21.0 g.  Calculate the following quantities.   (a)…

A:

Q: How many atoms of hydrogen are in a 1.0 g sample of acetic acid, CH3COOH? The molar mass of acetic…

A: As per the given data we haveMass of acetic acid=1gMolar mass of acetic…

Q: Number of Molecules or Number of Atoms or lons 2.379 x 10 ^23 Number of Substance Mass (g) Moles…

A: Number of moles = given mass/molar mass Also 1 mole = 6.022 × 1023 atoms, molecules, formula units…

Q: How many moles are contained in each number of grams of table sugar (C 12H 22O 11, molar mass 342.3…

A: Given data molar mass of sugar ( C12H22O11 ) = 342.3 g/mole   mass of sugar part(a) 0.500 g…

Q: How many grams of NBr3 can be made from  2.22 x 10-2 moles of Br2 ?  N2   +   3 Br2   →   2 NBr3…

A: Write down the given reaction N2 + 3Br2 ----> 2NBrccording to the stoichiometry 2moles NBr3 is…

Q: From the previous question convert 159.8 of Br2 to moles of Br2 O 1 mole of Br2 O 3 moles of Br2 O 2…

A: Molar mass of Br2 = 159.8 g/mol Moles of Br2 = mass of Br2 in g / Molar mass of Br2 in g/molGiven…

Q: What is the maximum number of moles of Al203 that can be produced by the reaction of 0.40 mol of Al…

A:

Q: 2.) 2 C₂ H₂(g) +50₂(g) → 4 (0(g) +₂H₂O(g) quantity 1.6 moles of C₂tl₂ Units desired moles of 0₂…

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Q: Convert 0.2377 grams of carbon into moles. 0.01718 molescarbon 0.01181 molescarbon 0.008229…

A: The mass of carbon given = 0.2377 g Molar mass of carbon = 12.0107 g/mol

Q: Formula Amount of Molar Mass of Amount of Samples units or molecules mass(g/mol) sample(g) atoms…

A:

Q: According to the following reaction, how many moles of mercury will be formed upon the complete…

A: 2HgO(s)----->2Hg(ℓ )+O2(g) From balance equation , No. of moles HgO = No. of moles Hg So, No. of…

Q: Calculate the number of moles of chlorine present in 120  g g of chlorine gas.

A:

Q: 25.0 g sample of Ca(NO3)2.

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

Q: Assume vit K1 makes up 0.052% ( by mass) of cilantro. How many moles of vit K1 is there in your…

A: Vit K1 makes up 0.052% (by mass) of cilantro. 1 tsp of cilantro is used here and volume of 1 tsp is…

Q: What is the maximum mass of iron (III) chloride that can be produced from 25g iron (1II) oxide and…

A: 1) Reaction: Fe2O3+6HCl →2FeCl3+3H2O 2) Mass of Iron(III)oxide = 25 g 3) Mass of Hydrogen chloride=…

Q: 2. Calculate number of molecules in 2.33 g CH6. molar masses: C = 12.01 g/ mole and H = 1.008 g/…

A: Given: Mass of C6H6 = 2.33 g.

Q: A) How many grams of Mgl, is present in a 0.4745 g sample that is 53.21% Mgl2 (278.11 g/mol)? B)…

A:

Q: How many hydrogen atoms are in a 1.0 g sample of CH3COOH? The molar mass of CH3COOH is 60.06…

A:

Q: Use the References to access important values if needed for 1. How many moles of C are there in a…

A: (1)1 mole of Carbon contains = 6.02×1023 atoms Then , number of moles present in  8.06×1021 atoms…

Q: Mass Number of atoms 1 atom of Mg amu atom(s) Katomic mass from the periodic table) 1 atom of Mg…

A:

Q: Molar Masses A = 17.813- mole D = 41.486- mole E = 33.011- mole Y = 19.280 X = 255.691 mole Z =…

A: Given that -  Molar masses of elements are -  A = 17.813 g/mole D = 41.486 g/mole E = 33.011 g/mole…

Q: 3. How many moles are in 1.838 liters of nickel, Ni? xby 224L MOLES LITERS by 22.4L MOLES 4. How…

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Q: Mass of watch glass and evaporating dish (g) = 59.92 Mass of watch glass, evaporating dish, and Mg…

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Q: How many moles of carbon in 70.43 grams of C6X12Y4? (Assume the molar mass of C6X12Y4 is 295.8)

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

Q: 25.0g of Co2 contain how many oxygen atoms (Molar mass of CO2 = 44.01 g.mol-1) A 1.00x1024 B…

A: Given-> Weight of CO2 = 25.0 gm Molar mass of CO2= 44.01 g/mole

Q: 4HCI(g)+O2(g)-2CI2(g) + 2H2O(g) Calculate the number of grams of Cl2 formed when 0.250 mol HCI…

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Q: sulphur dioxide reacts with oxygen to make sulphur trioxide. 2SO2 + O2 --> 2SO3. Calculate the…

A: The reaction between SO2 and O2 that give SO3, whose theoretical yield is to be calculated using the…

Q: In the following chemical reaction, Determine the number of moles in MH3 from 2.50 moles of H2…

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Q: What amount of carbon dioxide (in moles) is produced by the reaction of 5.00 mol C3H12 with 30.0 mol…

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Q: 4. A 100.0-g sample of an unknown hydrate (formula weight 234.0 g/mol) contains 31.4 g of water…

A: Given: Mass of hydrate = 100 g Molar mass of hydrate = 234.0 g/mol Mass of water = 31.4 g Molar mass…

Q: Part C In the gaseous state, chlorine exists as a diatomic molecule Cl2 (Molar mass = 70.9 g/mol).…

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

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Q: a correct mol ratio for the relationship between hydrogen gas and ammonia in the following equation…

A: For determined of mol ratio first required a balance equation. The coefficient ratio of two…

Q: Mass of H20 is 2.9445 g Mass of CO2 is 7.1918 g Moles of H20 is 0.1634 Moles of CO2 is 0.1634

A: 1. atomic mass of H =1 g/mol, O = 16 g/mol, C = 12 g/mol molecular mass of H2O = 18 g/mol and CO2 =…

Q: Part 1 - count the moles, molecules and atoms # of moles # of atoms in each Total # of atoms…

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Q: In the presence of cyanuric acid, melamine can form crystals that potentially cause renal failure if…

A: To find out the which contains the most nitrogen, we need to find out the the moles of nitrogen in…

Q: What is the greatest amount of NH3 (in moles) that can be made with 3.2 moles of N2 and 5.4 moles of…

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Q: How many grams of N2 are needed to make 444 g of NBr3 ?  N2   +   3 Br2   →   2 NBr3   +   44.0 kJ…

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Q: Number of atoms in 0.2 g molecule Br3O3 is (molar mass of Br3O8 is 368 g mol-') (1) 0.22 NA (2) 2.2…

A: Given: Mass of Br3O8 = 0.2 g And molar mass of Br3O8 = 368 g/mol.

Q: Suppose the masses of Sodium chloride and water provided in the table represent the mass of a level…

A: The more the orderly arrangement of atoms of substance , more is mass of the given substance, As we…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".