Calculate the number of oxygen atoms in a 100.0 g sample of forsterite (Mg, SiO,). Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits.

Q: sample of the unknown compound was placed in a weighed drying pan and heated to give the data below.…

A: Given that the experimental data:   Mass of the drying pan m1= 1.445 g Mass of drying pan and…

Q: Calculate the number of hydrogen atoms in a 130.0 g sample of tetraborane (B,H10). Be sure your…

A: Calculation of number of hydrogen atoms:

Q: Quèstion 9 The number of valance electrons of Zinc(Zn30) is 2. 30 None of the above

A:

Q: Calculate the mass of carbon atoms in 0.767 moles of glucose, C6H12O6. Use the correct number of…

A: Given that: number of moles of glucose =  0.767 To find:  mass of carbon atoms in 0.767 moles of…

Q: Calculate the number of nitrogen atoms in a 120.0 g sample of dinitrogen tetroxide (N,04). Be sure…

A: Mass of nitrogen dioxide (N2O4) = 120.0 g  Number of nitrogen atoms = ?

Q: Calculate the number of nitrogen atoms in a 150.0g sample of hydrazine N2H4. Be sure your answer…

A: The question is based on mole concept. We have been given mass of hydrazine. we have to calculate…

Q: Determine the mass of oxygen in a 3.8-g sample of Al2(SO4)3. Express your answer to two significant…

A: Given, Amount of sample is 3.8 g. Molar mass of Al2(SO4)3 is:

Q: What is the mass of 2.41 moles of AgN*O_{3} ? Write your answer to 2 decimal places and include the…

A: Given  Moles of AgNO3 = 2.41 mol

Q: A sample of oxygen contains 7.1 x 1020 atoms. How many moles are in this sample? Your answer should…

A: One mole of a substance contains 6.022×1023 particles(atoms/ions/molecules).In this problem,we've to…

Q: What is the mass percent of silicon in the mineral orthoclase (KAlSiO)? Your answer should have the…

A: molar mass of KAlSi3O8 = 278.33 g/mol molar mass of silicon = 28.09 g/mol total mass of silicon in…

Q: A chemist prepares a solution of magnesium bromide (MgBr.) by measuring out 87. mg of MgBr, into a…

A: Molarity is defined as number of mole of solute divide by volume of solution in liter

Q: An unknown compound has the following chemical formula: N_xO where x stands for a whole number.…

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Q: Calculate the mass (in grams) of 0.722 mol of titanium. Express the mass to three significant…

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Q: A chemist adds 1.50L of a 4.3x10−5/mmolL silver(II) oxide AgO solution to a reaction flask.…

A:

Q: Calculate the mass in grams of 5.5000x10^18 molecules of dinitrogen tetroxide. Please write your…

A: Given that: Molecules of Dinitrogen tetraoxide = 5.5000×1018 molecules Mass of Dinitrogen tetraoxide…

Q: Calculate the number of oxygen atoms in a 150.0 g sample of vanadium(V) oxide (V₂05). Be sure your…

A: Here, we have to calculate the number of oxygen atoms in a 150.0 g sample of vanadium oxide (V2O5).

Q: A chemist adds 365.0 mL of a 2.1 mol/L nickel(II) chloride (NiCl,) solution to a reaction flask.…

A: Molarity is the moles of substance present per unit volume. Molarity = moles of solute / volume By…

Q: What is the mass in grams of 4.57 × 10²⁵ molecules of Cl₂? I get the write and but the wrong number…

A: Mole concept: The number of molecules in one mole of chlorine is equal to the Avogadro number. The…

Q: Calculate the number of oxygen atoms in a 150.0 g sample of dinitrogen tetroxide (N₂O4). Be sure…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

Q: Assume that the ratio of moles of Cl to moles of Cu are 1.84.  If we can represent the formula by…

A: The ratio of moles of any two substances in a balanced chemical reaction is called molar ratio.…

Q: Calculate the number of oxygen atoms in a 100.0 g sample of vanadium(V) oxide (V,O,). Be sure your…

A:

Q: Calculate the number of oxygen atoms in a 100.0 g sample of scheelite (Ca WO,). Be sure your answer…

A: Number of moles of a compound is equal to the mass of substance divided by its molar mass.

Q: The mass of an average blueberry is 0.75 g and the mass of an automobile is 2000 kg . Find the…

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Q: Calculate the mass of forsterite (Mg, SiO,) that contains a million (1.000 x 10°) magnesium atoms.…

A:

Q: Calculate the number of phosphorus atoms in a  100.0g sample of diphosphorus pentoxide P2O5. Be…

A:

Q: Calculate the number of hydrogen atoms in a 140.0 g sample of tetraborane (B,H0). Be sure your…

A:

Q: If the density of Al metal in aluminum is 2.699g/cm3, estimate the number of atoms/cm2 in a foil…

A:

Q: Determine the elemental percentages of all elements in C7H12CuO2. Enter your answer to two decimal…

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Q: How many moles Ca(Mnoa)2 are present in 360.000.000.000.000,000.000,000 formula units of Ca(Mnoa)2?…

A:

Q: Assume that the ratio of moles of Cl to moles of Cu are 2.7.  If we can represent the formula by…

A:

Q: Assuming gasoline to be pure octane, C8H18 (actually, it is a mixture of many substances), an…

A: An automobile getting 22.7 miles per gallon would consume 5.10x10^23 molecules per mile. Find out,…

Q: How many (NH4)2CO3 formula units are there in 16.9 g of (NH4)2CO3? Enter your answer using the…

A:

Q: Determine the number of carbon atoms in a 381 mg tablet of acetaminophen (C3H9NO2). Given: Molar…

A: Given: Mass of C8H9NO2 = 381 mg = 0.381 g                  (Since 1 g = 1000 mg) And molar mass of…

Q: What is the mass percentage of carbon in C7H11O3? Express your answer as a percentage (i.e., out of…

A: Mass percentage of element in compound is defined as percent ratio of element mass to the whole…

Q: A 5.000 g of metal ore is dissolved in 20.000 mL of acid (density 1.840 g/mL). The mass of the…

A: Mass of metal = 5.000 g Volume of acid = 20.000 mL density of acid = 1.840 g/mL Calculation of mass…

Q: (Incorrect) How many total atoms are in 80.7 g of copper(II)sulfate? Provide your answer in…

A:

Q: A student needs to produce 28.88 grams of nitrogen gas (N2) for a lab experiment.  How many grams of…

A: Mass of nitrogen produced = 28.88 g The reaction is ., NH3 -->  N2 + H2 The molar mass of NH3 =…

Q: Calculate the number of oxygen atoms in a 150.0 g sample of dinitrogen tetroxide (N,04). Be sure…

A:

Q: Calculate the number of hydrogen atoms in a 150.0 g sample of hydrazine (N,H). Be sure your answer…

A: Solution Hydrazine is additionally known as as organic compound or Diazane or gas binary compound…

Q: Calculate the number of oxygen atoms in a 150.0 g sample of scheelite (CaWO4). Be sure your answer…

A: Number of Oxygen atom in 150g CaWO4 can be calculated as follows

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".