In chemistry. We have a unknown compound that contains 3.528 g or hydrogen and 55.965g of oxygen. Calculate the ratio of hydrogen moles to oxygen moles.

Q: A 0.858-g sample of copper was reacted with oxygen to form 1.074 g of copper oxide. Determine the…

A: Given, mass of copper sample = 0.858 g Mass of copper oxide formed = 1.074 g Empirical formula of…

Q: Determine the number of molecules of SO3 and atoms of oxygen contained in 0.881 g of SO3.

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Q: 4. Find the mass of 3.66 mol of N2, nitrogen gas.

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

Q: 16. A chemist has 2.50 grams of magnesium. How many grams of F2 molecules must a chemist have to…

A: Mass of magnesium = 2.50 g Molar mass of magnesium = 24.305 g/mol Molar mass of F2 = 38.0 g/mol Mass…

Q: Calculate the number of moles of Fe in 43.6 grams of Fe

A: Given weight of Fe = 43.6 grams Molar mass of Fe= 55.845 g/mol

Q: Fentanyl is a type of synthetic opioid generally used for pain relief and anesthesia. It has the…

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Q: Determine the molecular formula of a compound that is made of 54.5 g of carbon, 9.1 g of hydrogen,…

A: The solution is as follows :

Q: When 8.60 g of calcium are heated in air, 10.60 g of calcium nitride are formed. What is the…

A: We are given that 8.6 g of calcium is heated to produce 10.6 g of calcium nitride, the reaction can…

Q: Bulk platinum cost about $1158 dollars per ounce. (28.35 g = 1 ounce) how many moles of platinum…

A: Given : 28.35 g = 1 ounce Cost of 1 ounce = $1158 Calculate : moles of platinum  purchase with…

Q: Silicon dioxide reacts with hydrogen fluoride to produce silicon fluoride and water. Under ideal…

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Q: The United States has a huge debt that is owed by our country. Currently it is approximately 27…

A: Since 1 mole represents 6.023 ×1023 particles or entities Which is also named as Avogadro's no. or…

Q: Calculate the number of moles in 32.95 g of Fe

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Q: Threonine is an amino acid with the formula C4H9NO3C4H9NO3. Determine the number of moles of carbon…

A: Formula of Threonine = C4H9NO3  Mass of threonine = 48.15 g Moles of carbon = ?

Q: Calculate the number of carbon atoms in 15.0 g of carbon.

A: The given data contains, given mass = 15.0 g. molar mass of carbon = 12 g/mol.

Q: How many moles are equal to 4.5 x 1023 molecules of carbon monoxide? (Round to two decimal places).

A: No of CO molecules = 4.5 × 1023 molecules No fo moles = to be determined

Q: Is the subscript of an element the same as its number of moles? Does the subscript mean how much…

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Q: Convert 1.69 × 1024 atoms of carbon to moles of carbon. 1.69 x 1024 atoms = mol C

A: The objective of this question is to convert the given number of atoms of carbon into moles of…

Q: Convert 6.00 moles of calcium to atoms. O 8.50x1024 atoms O 1.56x1023 atoms O 3.61x1024 atoms…

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Q: Part D. A 28.50 g sample of a compound of carbon, sulfur, hydrogen, and combusted (burned). 35.25 g…

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Q: How many carbon atoms are present in 5.400 x 10 * mol of carbon? Give your answer in scientific…

A: Here number of mole of carbon= 5.400 × 10-4 Mole We know  that  1mole=  Avogadro number…

Q: In a hands-on lab, you would determine the empirical formula of a compound containing aluminum &…

A: Given that the aluminum and sulfur react to form a compound. The compound contains 0.018 moles of…

Q: A 15.2415.24 g sample of a compound contains 9.739.73 g of iron, Fe,Fe, 1.801.80 g of phosphorus,…

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Q: moles

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Q: Consider a 10.1 g sample of the compound cesium phosphate. Given that you have 0.0205 moles of…

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

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: Phosphorus (P) is element 15 on the periodic table. A sample contains 3.32x1025 atoms of P.…

A: For phosphorous (P) Atomic number of phosphorus = 15 Given,Sample of phosphorus contains = 3.32 ×…

Q: How many moles of Ag are in 39.5 grams of Ag2O

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Q: empirical and molecular formula of the compound

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Q: Consider a 10.1 g sample of the compound cesium phosphate. a) What is the chemical formula for…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: 5.00 g of a nitrogen oxide contains 1.84 g of nitrogen. What is the empirical formula of the oxide…

A: Given: Mass of nitrogen oxide = 5.00 g. And the mass of nitrogen in the compound = 1.84 g.

Q: convert 352 g Na2S2O3 to moles of O.and to total numbers of atoms

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Q: 143.50g

A: This question is related to mole concept.

Q: A compound is 7.7% (by mass) hydrogen and 92.7 % carbon. It has a molecular weight of 52 g/mole.…

A: Empirical formula are the formula which represent simplest ratio of an element present in a given…

Q: Determine the number of moles of carbon in 41.95 g41.95 g of leucine.

A: Given :- mass of leucine is 41.95 g  To calculate :- number of moles of carbon

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Q: A sample of an unknown molecule contains 7.391 g of carbon, 0.6978 g of hydrogen, 1.078 g of…

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Q: Convert between mass and moles of an element. What amount of oxygen, in moles, does 49.8 g 0…

A: Given that, mass of O=49.8 g  molar mass of O= 16 g mol-1 moles of O=?

Q: Glycine is an amino acid with the formula C2H5NO2. The numbers above are subscripts actually…

A: Please find your solution below : Amino acids are the organic compounds that serve as building…

Q: Cocaine has the structure shown below. It has a molar mass of 303.358 g.mol-1. Determine the number…

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Q: How many moles of atoms are contained in each of the following? a.) 7.50 x 10^24 I2 Molecules b.)…

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Q: How many NH3 molecules comprise one mole of NH3? What is the mass in grams of one mole of NH3? What…

A: In one moles of NH3 is equal to Avagadro number of Molecules of NH3  That means,  1mol of NH3 =…

Q: Convert 1.41×1024 atoms of carbon to moles of carbon.

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Q: Calculate the mass in g of 7.450 mol of NH3. Enter your answer in the provided box. g NH3

A: Given data, Moles of NH3 = 7.450 mol  Molar mass of NH3 = [14 + (3×1)] g/mol = 17 g/mol

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.