What is the mass percent of hydrogen in water?

Q: What is the percentage of nitrogen, by mass, in calcium nitrate?

A: the molar mass of calcium nitrate, Ca(NO3)2 = 164.088 g/mol molar mass of nitrogen = 14 g/mol

Q: A 2.45g sample of strontium completley reacts with oxygen to from 2.89g of strontium oxide. What is…

A: Mass of Sr = 2.45 g  Mass of Strontium oxide = 2.89 g  Mass % =?

Q: Iron ore is impure When is heated withan excess of carbon (coke), metallic iron and carbonmonoxide…

A: Given that: mass of iron ore = 938 kg mass of pure iron = 523 kg To find: mass % of ore in…

Q: he percent by mass

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Q: mass

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Q: Determine the molar mass of a certain non-volatile, n

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Q: 5.0g of solid zinc carbonate are heated to produce oxide and carbon dioxide.  (a) Write a balanced…

A: Number of moles of a chemical compound is used to calculate the amount of the compound in the given…

Q: How many grams of sodium are required to react with 0.800mol of oxygen?

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Q: What is mass percent of hydrogen in nonane?

A: Nonane is a long chain aliphatic hydrocarbon compound which contains nine carbons. # From the…

Q: What is the mass in grams of carbon dioxide that would be required

A: Given :- mass of LiOH = 50.5 g  To calculate :- mass of CO2 (in g)   Number of moles = mass/molar…

Q: Determine the mass percent of oxygen in ammonium sulfate.

A: 2.  Given : name of the compound is ammonium sulfate  To be calculated : mass percent of oxygen in…

Q: What is the molar mass of NaOH?

A: The molar mass of a compound is defined as the mass of the compound present in one mole of the…

Q: What volume of 1.85 M KOH will react completely to 100.0 g of Al2S3?

A: Here we are required to find the volume of 1.85M KOH required to react with aluminum sulphide

Q: What is the percent by mass of magnesium in MgO?

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Q: How many moles of hydrogen gas would be needed to react with excess carbon dioxide to produce 65.1…

A: Given  Number of mole of water vapor    = 65.1 mole  Number of mole of hydrogen gas =  ?

Q: What is the molar mass for calcium phosphate?

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Q: Calculate the mass percent of hydrogen in water and the mass percent ofoxygen in water.

A: The mass of one mole of water is 18g. In the mass of water, the mass of hydrogen is 2 grams and the…

Q: How does the boiling point change as the formula mass of compound increases?

A: To solve this problem we have to know about boiling point of organic compounds.

Q: What is the percent (by mass) water CaSO4.2H22O?

A: Here, we have calculate % by mass of H2O in CaSO4.2H2O.

Q: how many moles of oxygen are required to make 3.8 moles of water?

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Q: 23.5 grams of Oz will produce how many mols of SeO2?

A: Given :- mass of O2 = 23.5 g  To calculate :- number of moles of SeO2

Q: How many moles of SO3 can be formed if 23.6 g of oxygen is consumed? Enter mols for unit.

A: Here we are using unitary method to solve this problem.

Q: What is the mass percentage of iodine in a solution containing0.035 mol I2 in 125 g of CCl4?

A: Given Moles of I2 = 0.035 mol   and mass of CCl4 = 125 g Molar mass of I2 = 253.8 g/mol Molar mass…

Q: Calculate the theoretical percentage of water in Cu2SO4·2H2O (Molar mass of the hydrate is 259.19…

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Q: n. Calculate the maximum mass of water that could be produced by the chemical reaction. Rou

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Q: What mass of aluminium oxide formed when 10.0g of Al is burned in 20.0g of O2?

A: Given: The amount of Al = 10.00 g The amount of O2 = 20.00 g Al burns in O2 to given an oxide of Al…

Q: 1, determine the mass of blue dye in the solution. ( of the dve is 792 84g/mol).

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Q: how many grams of limestone must be reacted to produce 500 grama of lime

A: The Question is based on the concept of Reaction Stoichiometry. We have to determine how much…

Q: A 0.580 g sample of calsium(Ca) is allowed to burn in 2.530 g of oxygen gas(O2). The sole product is…

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Q: What is the molar concentration of the unknown sample (in mole L)?

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Q: How many moles of 02 willy completely react with 6.23 mol PbS?

A: During the reaction between PbS and O2 the PbS converts to PbO and S is oxidized to SO2 from the…

Q: How many grams of Mg will react with 63 mole of HCI?

A: The reaction can be written as: Mg(s)+HCl(aq)→MgCl2(aq)+H2(g) Balance the equation:…

Q: What is the molecular mass of NaOH?

A: Given: Atomic mass of Na = 22.99 g/mol Atomic mass of O = 15.99 g/mol Atomic mass of H = 1.008 g/mol

Q: How many moles of water can be formed from 5 moles of oxygen gas?

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Q: How many moles of potassium chlorate must react to produce 0.73 moles of oxygen?

A: The decomposition reaction of potassium chlorate is as follows: 2KClO3 → 2KCl + 3O2

Q: An intermediate in the preparation of elemental titanium from TiO2 is avolatile chloride of titanium…

A: Given data, The volatile intermediate of titanium that contains 25.24% titanium by mass.  Then, the…

Q: 0.0984g of an unknown chloride is dissolved in water a solution of silver nitrate is added an…

A: Weight of unknown chloride=0.0984g Weight of silver chloride=0.2290g

Q: What is the mass percentage of Na in NaF?

A: The mass percent of an element is defined as the mass of that particular element present in the…

Q: what will be the number of molecules in one mole o2?

A: The number of moles of a compound can be determined by the number of moles of the compound and…

Q: What mass of solid K is produced during this reaction?

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Q: What is the mass percent of sulfur in disulfer tetraflouride?

A: Mass % is given by: Mass %=mass of substanceTotal mass×100 Molar mass of S2F4 = 140.1236 g/mol Molar…

Q: he molar concentration of N

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Q: What are the number of moles in one litre of water assume that water density is 1 g/mol.

A: The number of moles can be calculated by the ratio between the mass of the compound to its molar…

Q: How many grams of water would be lost if a 8.000 gram sample of PtCl4·5H2O were heated?

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Q: How many grams of magnesium produced if 42.0g of potassium are used? are

A: Given :- mass of K = 42.0 g  To be calculated:- mass of Mg (in g)  number of moles = mass/molar mass…

Q: Plain carbon steel might have a mass percentage of 0.3% carbon (C) by weight; the rest is iron (Fe).…

A: We have to predict the mole fraction of C in the steel.

Q: what is the percentage by mass of magnesium nitrate in

A: Given : Mass of solution =20.6 g          Mass of Mg(NO3)2 = 2.91g    To calculate = % by mass of…

Q: If 250. grams of sodium azide undergoes decomposition, how many molecules of nitrogen gas are…

A: We have to predict the molecules of nitrogen gas Produced.