What mass of sodium hydroxide has the same number of oxygen atoms as 100.0 g of copper(II) carbonate?

Q: A particular protein sample is found to have 1 atom of iron in its chemical formula. If the mass…

A: Mass percent expresses the solute concentration in any mixture. The division of weight of dissolved…

Q: The empirical formula of a compound is NO2, and its molar mass is about 92.g. What is its molecular…

A: We know the relation between empirical formula and molecular formula is,Molecular mass = n…

Q: hen copper is heated with an excess of sulfur, copper(I) sulfide is formed. In a given experiment,…

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Q: Acetaminophen has a elemental composition of 63.56% carbon, 6.00% hydrogen, 9.27% nitrogen and…

A: Step 1: carbon elemental composition /12, hydrogen composition /1, nitrogen composition /14, oxygen…

Q: Malonic acid is used in the manufacture of barbiturates (sleeping pills). The composition of the…

A: To calculate the mole of each elements present in Malonic acid: Given: 34.56 % of C, 3.9 % of H, and…

Q: 3. In determining the simplest formula of lead sulfide, 2.46grams of lead are placed in a crucible…

A: The mass of the lead is 2.46 g.The mass of the product is 3.22 g.

Q: A compound was found have the following mass percentages; C 39.99%, H 6.73%, Oxygen 53.28%. What is…

A: The question is based on the concept of stoichiometry.Based on mass percentage provided, we need to…

Q: How many grams are in 1.18 x 1021 HF molecules? H = 1.008 g/mole and F =19.00 g/mole

A: Number of mols = Weight in gMolecular weight in g/mol Then Weight of the substance = Number of mole…

Q: A gaseous compound has the empirical formula NO2. If its molar mass is approximately 92 g/mol, what…

A: Empirical formula of compound: NO2Molar mass of compound = 92 g/molmolecular formula = ?Note:…

Q: Elemental sulfur occurs as octatomic molecules, S8. What mass (g) of fluorine gas is needed to react…

A: Given- Elemental sulfur occurs as octatomic molecules, S8. 17.8 g of sulfur to form sulfur…

Q: What is the mass, in grams, of 9.71×1024 molecules of methanol (CH3OH)?

A: Introduction :  We need to calculate mass in grams for CH3OH . First convert molecules into moles .

Q: What mass of iron (III) oxide is produced when 3.88 X 1025 grams of oxygen reacts with excess…

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Q: Ascorbic acid is one form of vitamin C and is known to contain only carbon, hydrogen, and oxygen.…

A: Given,  The mass percent of Carbon = 40.91%  Hydrogen = 4.578% and Oxygen = 54.50% The mass of the…

Q: The mass of water obtained in a combustion analysis of a 1.000 g sample of an organic compound…

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Q: Which mass of barium in g is needed to react completely with 23.00 g of oxygen  Atomic masses O=…

A: The mass of oxygen is 23.00 g.The atomic mass of O is 15.999.The atomic mass of Ba is 137.33.To…

Q: The empirical formula for styrene is CH(l), and its molar mass is 104 g/mol. What is its molecular…

A: Given is,  Empirical formula of styrene = CH Molar mass =104 g/mol

Q: What is the mass in grams of 3.7 x 1019 particles of iron(III) carbonate?

A: Here we are asked to calculate the mass of 3.7×1019 particlesof iron(III) carbonate.

Q: What is the empirical formula for a compound when nitrogen is 1.121 g, hydrogen 0.161 g, carbon is…

A: Empirical formula :-  The chemical formula which shows only the relative number (simplest ratio) of…

Q: If we want to make 2.5 moles of NH3, how many grams of nitrogen will we need?

A: The balanced chemical equation for the reaction that produces ammonia (NH3) from nitrogen (N2) and…

Q: A student obtains a mixture of the chlorides of two unknown metals, X and Z. The percent by mass of…

A: Given: Mixture of metal X and Z. And mass percent of X and Z in the mixture.

Q: A reaction between nitrogen and hydrogen forms ammonia (NH3). If 15.62 grams of nitrogen is reacted…

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Q: What is the molecular mass of a compound whose empirical formula is CH3 and there are 5 empirical…

A: The empirical formula of the compound is . There are 5 empirical formulas in the compound. Use this…

Q: A 1.000 g sample of an unknown compound containing only carbon, hydrogen, and oxygen was analyzed…

A: Given: Mass of sample = 1.000 g Mass of CO2 formed = 2.579 g Mass of H₂O formed = 0.6536 g Molar…

Q: According to the following reaction, how many moles of chlorine gas are necessary to form 0.452…

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Q: A 1.000 g sample of an unknown compound containing only carbon, hydrogen, and oxygen was analyzed…

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Q: What is the formula for the compound ?

A: The percent composition of an organic compound provides information about the percent/gram of each…

Q: Aluminium has a density of 2.70 | g/cm3 . How many moles of aluminum are in a 13.2 cm3 block of the…

A: Density :- Density of a substance is its amountof mass per unit volume . So , density is the…

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: grams in 11

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

Q: What mass of iron (III) oxide is produced

A: Number of moles = mass/molar mass  Molar mass of O2 = 31.999 g/mol  Molar mass of iron (iii) oxide =…

Q: The chemical formula for chlorophyll is C₅₅H₇₂MgN₄O₅. Given the molar mass of the compound is 893.49…

A: Given, mass of C₅₅H₇₂MgN₄O₅. = 1.501 g Molar mass of C₅₅H₇₂MgN₄O₅. = 893.49 g/mol  Number of moles =…

Q: Elemental phosphorus occurs as tetratomic molecules, P4. What mass of chlorine gas is needed to…

A: Given that  Elemental phosphorus occurs as tetratomic molecules, P4 The mass of chlorine gas is…

Q: An oxide of tungsten (symbol W) is a bright yellow solid. If 5.34 g of the compound contains 4.23g…

A: To calculate the mole of tungsten and oxygen - Total mass of sample = 5.23 g Molar mass of…

Q: Elemental phosphorus occurs as tetratomic molecules, P₄.What mass of chlorine gas is needed to react…

A: Given data, The weight of the phosphorus is 455 g. Then, we have to calculate the mass of chlorine.…

Q: Calculate the mass of each element in Rhenium Bromide (ReBr3) when 93.7 g of Bromine gas (Br2)…

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Q: 5. a) How many moles is 12.04 x 10 molecules of CaCO,? b) What is the mass of this many moles?

A: Since we know that   1 mole of any substance = 6.022 × 1023 molecules of that substance. And  Number…

Q: 15 rect. or oard. Ⓡ G #3 How many molecules are in 4.0 moles of glucose (C6H₁206)? 1 4 moles 3.58 x…

A: Given 1.839 ×1028 water molecules

Q: How many molecules are in 119.78 g of butane (C4H10)?

A: Mass of butane = 119.78 g  Number of molecules of butane = ? • Number of moles = mass / molar mass…

Q: How many grams of hydrogen, H2, are produced from 29.3 g of aluminum, Al?

A: Given Synthesis of H2 from Al

Q: What number of Ge atoms and what amount (moles) of Fe atoms are in 500.0 g of iron

A: Mass of Iron (Fe) = 500 g Molar mass of iron = 55.84 g/mol   We know that ; * 1 mole of substance =…

Q: When 25.78 g of copper (I) sulfate reacts with 34.67 g of ammonium fluorate, how many grams of…

A: Given data : Mass of Copper (I) sulfate = 25.78 g Mass of ammonium fluorate = 34.67 g Mass of copper…

Q: What mass of iron (III) oxide is produced when 3.88 X 1025 grams of oxygen reacts with excess…

A:

Q: 2. A mixture weighing 1.250 grams is 20.0% sodium nitrate, 56.0% silicon dioxide, and the rest is…

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Q: Benzene has the molecular formula CcH. A sample of benzene has a mass of 43.95 g. (a) Calculate the…

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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.