If 11.2 g of hydrogen reacts completely with 86.8 g of oxygen to form hydrogen peroxide, what is the percent by mass of hydrogen in hydrogen peroxide?

Q: Glucose has the formula C6H12O6. What is the percent composition of oxygen in glucose to three…

A: The percent composition of oxygen in glucose is to be calculated.

Q: A 20.00 g mixture of magnesium and zinc metal reacting with excess hydrochloric acid produced 1.402…

A:

Q: If you have a sample of 0.3154g of air and air is 78.0% nitrogen, by mass, what is the mass of…

A:

Q: When burning 180 g of glucose in the presence of 192 g of oxygen, water and carbon dioxide are…

A: Given that : Mass of glucose = 180g Mass of oxygen = 192g Mass of water = 108g Carbon dioxide…

Q: at mass of NO,

A:

Q: What is the molar mass of unknown Q whose mass is 1.00g and .0350moles

A: Given data is as follows: The mass of the unknown Q = 1.00 g The moles of unknown Q = 0.0350 moles…

Q: 10) In a round-bottom flask, a chemist completely reacts 4g of hydrogen with 25g of chlorine. What…

A: Mass of hydrogen = 4 g Mass of chlorine = 25 g Total mass of the compounds = 29g

Q: The mass of 12.5 mol of sodium chloride is? (in kg)

A: Mass of 1 mole of a substance is called as molar mass.

Q: / grams of

A:

Q: When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 13.2 g of carbon…

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Q: What volume (in Liters) of nitrogen gas (N2) is equal to 3.42x1022 molecules of this substance?

A:

Q: If 0.750 g of orange mercury oxide decomposes to 0.695 g of liquid mercury and oxygen gas, what is…

A: Given data contains, Mass of mercury oxide is 0.750 g. Mass of liquid mercury is 0.695 g.

Q: Given that I-127 is the only natural isotope of iodine, what is the mass of one I atom and…

A: Given :  Given that I-127 is the only natural isotope of iodine, what is the mass of one I atom…

Q: Solid potassium and oxygen gas react to produce solid potassium peroxide, K2O2. Assume the reaction…

A: 1) Write the balanced chemical equation for the given chemical reaction. 2) From the balanced…

Q: What is the solution to this question? The answer given is 0.7081N

A: Calculate the number of moles of the compound. The molar mass of the compound potassium trihydrogen…

Q: Natural gas is mostly composed of methane (CH4). In 6.07 g of CH4, how many millimoles of CH4 are…

A: Given, Natural gas is mostly composed of methane. Weight of methane =  6.07 g Molar mass of methane…

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: The chemical formula for acetic acid is CH₃COOH. In each mole of acetic acid, there are;2 Moles of…

Q: Calculate the mass of mercury(II) oxide

A: Ideal Gas Law;-  PV = nRT  P = pressure of gas  V = Volume of gas  n = no. of moles of gas  R =…

Q: sample of water has 2.15x1024 molecules. What is the mass of the sample?

A: Molecular weight of water = 18 g/ mol 1mol of any substance contain 6.023× 1023  number of…

Q: If the reaction between zinc chloride and sodium phosphat produces 25.7 g of product, then what is…

A:

Q: In the decomposition reaction,50.10 g of calcium chlorate was heated to produce calcium chloride and…

A: Calcium Chlorate is Ca(ClO3)2 Reaction: Ca(ClO3)2  --> CaCl2 (s)  + 3O2(g)

Q: How many millimoles of calcium nitrate contain 4.78 x 1022 formula units of calcium nitrate?

A: Avagadro number gives the number of atoms or molecules present in one mole of the substance. It has…

Q: when 22.0 g hydrogen combine with oxygen, 196.5 g of water forms. based on the law of conservation…

A: Given data is as follows: The mass of hydrogen = 22.0 g The mass of water formed = 196.5 g The mass…

Q: An electric spark is passed through a mixture of 12 grams of hydrogen gas and 32 grams of oxygen gas…

A: Mass of hydrogen gas = 12 g Mass of oxygen gas = 32 g

Q: There are 20 kg of flues gases formed per kg of fuel oil burned in the combustion of a fuel oil…

A: 20kg of gas is produced when 1kg of C12H26 is burnt. We need to find the excess air in percentage.…

Q: A 14.56 g sample of phosphorus reacts with 41.38 g of chlorine to form only phosphorus trichloride…

A:

Q: e the percentage yiel

A:

Q: What is the mass of 3.94 moles of fluorine gas?

A: Given, Number of moles of fluorine gas =3.94 moleswe are asked to calulate the mass of 3.94 moles of…

Q: A 20.00 g mixture of magnesium and zinc metal reacting with excess hydrochloric acid produced 1.132…

A:

Q: A 20.00 g mixture of magnesium and zinc metal reacting with excess hydrochloric acid produced 1.242…

A: The reactions occurring in the system are written below.

Q: What mass of Al

A:

Q: A 15.6 g sample of magnesium carbonate contains 3.2 g of magnesium. What is the percent Magnesium in…

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: 15.0 g of iron is allowed to react with air to produce Iron III Oxide. If the reaction is complete,…

A: solution is followed as:

Q: In a combustion reaction, 31.0 g of hydrocarbon reacts with 96.0 g of oxygen to produce water and…

A: The process in which an organic substance like a hydrocarbon reacts with oxygen from air to give out…

Q: 50 cm3 of a gaseous hydride of phosphorus, PHn reacts with exactly 150 cm3      of chlorine, Cl2 to…

A: Given,  Volume of gaseous hydride of phosphorus (PHn) = 50 cm3  Volume of Cl2 = 150 cm3  Volume of…

Q: If 1.0 mole of methane reacts with oxygen to produce carbon dioxide and water,what mass of water is…

A: Given  Number of mole of methane   = 1 mole  Mass of water    = ?

Q: The chemical formula for potassium bromide is KBr. A chemist measured the amount of potassium…

A: Chemical formula of potassium bromide = KBr  Given mass of KBr = 58.1 gram

Q: 3. If 0.4352 grams sample of Copper oxide is heated and decomposes into 0.3477 g of copper oxide and…

A:

Q: A chemist weighed out 101. g of mercury. Calculate the number of moles of mercury she weighed out.…

A:

Q: In a combustion reaction, 30.8 g of ethanol reacts with 64.3 g of oxygen to produce water and carbon…

A: The balanced chemical equation for the combustion of ethanol can be written as,C2H5OH + 3O2 → 2CO2 +…

Q: How many kilograms of lead(II) nitrate are produced from the reaction of 21.1 moles of silver…

A: Given, 21.1 moles of silver nitrate reacts with excess lead.we are asked to calculate the amount of…

Q: A 20.00 g mixture of magnesium and zinc metal reacting with excess hydrochloric acid produced 1.102…

A: Given, mass of mixture = 20.00 g Hydrogen gas produced = 1.102 g

Q: In a combustion reaction, 38.2 g of hydrocarbon reacts with 96.0 g of oxygen to produce water and…

A: Given: Mass of hydrocarbon = 38.2 g Mass of oxygen          = 96.0 g Mass of water             =…

Q: If I use 8 moles of hydrogen gas, how many liters of nitrogen gas must have reacted?

A: Given :- number of moles of H2 = 8 mol  To calculate :- volume of N2 (in L)  at STP : 1mol = 22.4 L

Q: 12. When 3.175 g of copper reacts with chlorine gas 6.725 g of copper chloride is formed. Find by…

A: Copper reacts with chlorine to form copper chlorine. The mass of copper is= 3.175 g The mass of…

Q: Mercury is the only metal that is a liquid at 25 degrees celcius. Consider a drop of mercury. A…

A: Moles of a substance can be defined as the ratio of mass of given substance to its molar mass.…

Q: Solid iron reacts with diatomic oxygen gas to produce iron (III) oxide. If 15 grams of iron reacts…

A: given data  solid iron = 15 gm diatomic oxygen =45 gm find mass of Fe3O4

Q: How many Liters of H2 are made from 12 grams of Al?

A: Mass of Al = 12 g Volume of H2 produced =?

Q: If 45.98 g of sodium combines with an excess of chlorine gas to form 116.89 g of sodium chloride,…

A: Limiting reagent is the reagent which is consumed in the chemical reaction completely. It decides…

Q: Volcanoes emit much hydrogen sulfide gas, H2S, which reacts with the oxygen in the air to form water…

A: Given : H2S reacts with oxygen to form water and sulfur dioxide. Mass of H2S reacting = 73 tons Mass…

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".