How many grams O in 283.0 g Fe(OH)g? Molar mass of Fe(OH)g is 106.867 Hint: 1 mole Fe(OH)g has 3 mol O; use as a conversion factor Alternatively, use percent by mass Hint: do not need Avogadro's number Put the answer in the box in regular (non-scientific) notation. Use one figure past the decimal.

Q: don’t understand the first part of the question with the: “You need 2 moles of magnesium…” How do I…

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Q: What is a mole of a substance? O alaboratory spoon full of a substance O The amount of a substance…

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Q: many oxygen atoms are in 5.34 x 10 grams LiHSO3? Hint: must use Avogadro's number

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Q: Explain why the statement, “The limiting reactant is thereactant with the lowest mass” is incorrect.

A: Limiting reactant is the reactant which completely consume in the reaction after some time and then…

Q: Hydroxylamine nitrate contains 29.17 mass % N, 4.20 mass % H, and 66.63 mass % O. If its molar mass…

A: Given data : Hydroxylamine nitrate contains 29.17 mass % N, 4.20 mass % H, and 66.63 mass % O. If…

Q: In the following question: How many g would 4.38 x 1024 atoms of lithium be? You would start with…

A: Given that: Number of Li atoms = 4.38 X 1024  atoms To convert atoms to grams we have to apply…

Q: Percent yields are generally calculated from masses. Would the result be the same if amounts (mol)…

A: Yes, same result will be obtained. Formula: Percent yield = actual mass of product…

Q: How many grams of ethanol C2H6O are in a 3.0 mole sample?

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Q: A certain compound has a molar mass of 60.80 g/mol.  How many moles are present if there are 13.80…

A: Molar mass of compound = 60.80 g/mol. So 60.80 g substance = 1 mol substance. Or 1 g substance =…

Q: Sodium chlorate decomposes into sodium chloride and oxygen gas as seen in the equation below.…

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Q: Use the References to access important values if needed for this question. many MOLES of dinitrogen…

A: First of all we have to calculate the molar mass of dinitrogen tetrafluoride.  And we know  Number…

Q: White limestones contains a large percentage of calcium carbonate, CaCO, What is the mass in grams…

A: The relation between mole and mass of any substance is given by - Mole = Mass/molar mass

Q: 1. Determine the number of moles and the mass (in g) of sodium nitrate, NaN03, required to decompose…

A: Given,

Q: A compound is found to contain 31.42% sulfur, 31.35% oxygen, and 37.23% fluorine by mass. What is…

A: Divide the percent composition by the molar mass of the elements. Percent composition of sulfur =…

Q: Calculate the mass, in grams, for each of the following. Part C 0.200 mole of CO2 Express your…

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Q: Convert from 277 moles of ammonium chloride, NH4CI to grams.

A: Ammonium chloride is a salt that contains one nitrogen atom, four hydrogen atoms, and one chlorine…

Q: How many atoms would be in 60.85 g of a substance that has a molar mass of 157.59 grams per…

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Q: Aluminium has a density of 2.70 g/cm. How many moles of aluminum are in a 13.2 cm block of the metal…

A: 2.7g/cm3x13.2cm3x 1 mol27 g=1.32 mol

Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE):…

A: We have been asked to calculate the no. Of moles of oxygen in a sample of methyl ter-butyl ether…

Q: How many grams of Br, are needed to form 65.7 g of AIBR, ? 2 Al(s) + 3 Br, (1) 2 AIBR, (s) Step 1:…

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Q: How many atoms of oxygen are in 1.00 x 10 -1g KMnO4? Hint:  must use Avogadro’s number

A: given mass of KMnO4 = 1 × 10-1 g

Q: How many moles are in 7.5 x 1019 molecules of ammonia, NH3?

A: Since we know that  1 mole of any substance = 6.022×1023 molecules Here,        6.022×1023 is the…

Q: Please calculate the mass in grams for:  8.0 mol lead oxide (PbO)

A: Molar mass of Pb = 207.2 g/mol  Molar mass of O = 16g/mol

Q: using the balanced equation NaCl ----> Na + Cl2. Find the following, moles of chlorine: moles of…

A: Balanced Chemical reaction is given by, 2NaCl → 2Na + Cl2

Q: What is the mass, in g, of Avogadro's number of aluminum atoms? Enter your answer in the provided…

A: Avogadro's number = 6.0224 x 1023 = 1 mole Mass of Avogadro's of an element = Molar mass of the…

Q: A compound of found to contain 37.47% carbon, 12.61% hydrogen, and 49.92% oxygen by mass. What is…

A: the empirical formula for this compound = CH4O

Q: How many molecules of CH, are in these 5.00g? How many moles of Cl, are in 15.0 g of Cl,? How many…

A: Given, chemical reaction takes place between methane and chlorine. The balanced chemical equation of…

Q: Calculate the mass in grams of each of the following samples. (Remember from class that the…

A: Given, a. moles of potassium chromate = 0.251 mol b. moles of lithium perchlorate = 1.51 mol c.…

Q: ONIIO_F3qHYTIQI6Ca5ojhYwiUE... O STOICHIOMETRY Finding mole ratios from chemical formulae This is…

A: We will find out how many moles of Hydrogen are present in the sample.

Q: Consider a 33.1g sample of the compound diphosphorus pentabromide  Determine what quantity in moles…

A: The relation between mole and mass is related as follows : mole = mass/molar mass

Q: A substance has a molar mass of 133.4 g/mol.  What is the mass of a sample that contains 0.0709…

A: Anything which is in the number of 6.022×1023 ( Avogadro's number ) is called one mole. For example…

Q: How do I solve this?

A: The amount that is predicted by the calculation of stoichiometry of the reaction is known as…

Q: Box the given and underline the unknown. MASS GRAMS 1. How many moles of nickel are in 82.34 grams…

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Q: 1.537g of an organic compound containing carbon, hydrogen, and oxygen was analyzed by combustion…

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Q: Finding mole ratios from chemical formulae This is the chemical formula for methyl tert-butyl ether…

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Q: How many atoms of sodium are in three moles Na2S?

A: Number of moles of Na2S = 3 mol

Q: 2. In a sample of 7.42 x 104 formula units of sodium carbonate, Na2CO3, determine: A) how many atoms…

A: Given: Number of formula units of Na2CO3 = 7.42×1025 units and we know that the molar mass of Na2CO3…

Q: A comppound has the following percentages by mass :copper 33.88%,nitrogen…

A: Given,  The percentages by mass : Copper (Cu) = 33.88%,                        Nitrogen (N)=14.94%,…

Q: A 0.1005 g sample of menthol (a compound comprised of C, H and O) produces 0.2829 g of carbon…

A: Mass of menthol = 0.1005g Mass of CO2 =0.2829 g Mass of H2O =0.1159 g

Q: 1.308g of an organic compound containing carbon, hydrogen, and oxygen was analyzed by combustion…

A: Given: Mass of an organic compound = 1.308g Mass of CO2 = 1.797g Mass of H2O = 1.471g Molar mass of…

Q: How many molecules (not moles) of NH3 are produced from 3.31x10-4 g of H,? Express your answer…

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Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE):…

A: Given : Chemical formula of methyl tert-butyl ether is CH3OC(CH3)3. And moles of carbon in…

Q: 24) 0.50 moles of C,,E

A: In the given question we have to calculate the number of grams in the given compound. moles of…

Q: 50. How many moles are in a 201.5-gram sample of chlorine gas, Cl,? How many molecules of Cl, are…

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Q: Calculate the number of atoms in 2.34 grams of Ca. For

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Q: How many molecules (not moles) of NH3 are produced from 7.43×10-4 g of H2? Express your answer…

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Q: Part D How many molecules (not moles) of NH3 are produced from 7.43×10-4 g of H2? Express your…

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Q: A 0.3546 g sample of vanadium (V) reacts with oxygen (O). As a result, vanadium oxide of weight…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: How many total moles of atoms are present in 4.00-mole samples of each of the following compounds?…

A: The subscripts of atoms in a given chemical formula represents number of moles of atoms present in…