An electric spark is passed through a mixture of 12 grams of hydrogen gas and 32 grams of oxygen gas in an enclosed tube. In the completion of the reaction, how many grams of water will be formed?

Q: What is the % by mass of a silver ring that has a mass of 12.0 g and contains 11.1 g pure silver?

A: Mass percentage of a compound represents the mass of solute present in a given mass of compound. It…

Q: Fermentation is a complex chemical process of wine making in which glucose is converted into ethanol…

A: the given reaction., C6H12O6 -----> 2C2H5OH + 2CO2 Molar mass of glucose = 180 g/mol Given Mass…

Q: eral contains 5.032 % of a precious metal, by mass. The precious metal as a density of 3.681 g/cm°.…

A: Density = 3.681 g/cm3  Mass % of metal mineral = 5.032%  Density = mass/volume

Q: If the density of ethanol is 0.789 g/mL, how many cm3 can be produced by the fermentation of 45.4 kg…

A: Ethyl alcohol is formed by enzyme action on sugars and starches by fermentation. C6H12O6 → 2 CO2 + 2…

Q: How many miles deep would a mole of popcorn kernels have to be in order to cover the Condinental…

A: Volume of 90 kernels of popcorn = 1 cu inch Length of the U.S. = 3000 miles Breadth of the U.S. =…

Q: how many grams of carbon dioxide will be made from 7.4x10 to the 23 power molecules of oxygen?…

A: First convert molecules into moles. 6.022 × 10²³ molecules = 1 mole of oxygen 1 molecules= 1÷6.022 ×…

Q: A student measures the mass of a sample of a metallic element, M. Then the student heats the sample…

A: Given: Mass of metal M is measured. And then the mass of compound MO forming after heating it with…

Q: In the Dumas Method for the determination of the molar mass of an unknown vapor, the weight of the…

A: Given,  Weight of the flask filled with water = 378.56 g  Weight of the water = 252.68 g  Density of…

Q: 200 g of a silicon compound is decomposed, resulting in 41 g of solid silicon and the remainder of…

A: Calculate the number of moles of both the compounds. nSiClF3 = WSiClF3MSiClF3nSiClF3 =200 g120.5…

Q: You wish to prepare 205 grams of 14.3 % MgSsO4- You will need grams of magnesium sulfate and mL of…

A: Given that, % of MgSO4 = 14.3%  ,  Total mass = 205 gms Also, % of MgSO4 = Mass of MgSO4Total…

Q: The average dollar bill is 1.8x107 nm long and weighs 0.987 g.  The distance to the sun is 1.5x108…

A: Mole : Mole is the unit by which we measure the amount of substance. One mole is equal to the number…

Q: A flexible container contains 6.02 x 10 molecules of N, at a volume of 22.4L. What will be its new…

A: To solve this problem we have first convert the number of molecules into number of moles . We know…

Q: A chemist adds 25.0 mL of a 0.0011 mol/L copper(II) fluoride (CuF,) solution to a reaction flask.…

A:

Q: A sample of air, upon analysis by an environmentalist showed that it contains 1.4 X 10-18 of mercury

A:

Q: How many grams of oxygen are required to produce 46.2 g of water vapor?

A: Here we are asked, How many grams of oxygen are required toproduce 46.2 g of water vapor.

Q: (a) copper(II) nitrate (b) sulfur (c) honey (d) drinking water OUCOTIOU TI

A: Step 1) a) copper(II) nitrate : Cu(NO3)2 It is also known as cupric nitrate formula or copper…

Q: If 33.3 grams of hydrogen gas were mixed with 45.55 grams of nitrogen gas, then how many grams of…

A: Nitrogen gas reacts with hydrogen gas to form ammonia. The equation for the balanced chemical…

Q: In 1986 an electrical power plant in Taylorsville, Georgia, burned 8,376,726 tons of coal, a…

A:

Q: In a reaction, 34.0g of chromium(III) oxide reacts with 12.1g of aluminum to produce chromium and…

A: 34.0g of chromium(III) oxide 12.1g of aluminum Both of these react to produce 23.3g of chromium and…

Q: Oil spreads on the water to form a film 110nm thick. How many square kilometers(Km²) of the ocean…

A: The oil and water are two immiscible liquids which means that the oil cannot be dissolved in water.…

Q: A pure substance A is found to change upon heating into two new pure substances B and C. Substance…

A: A pure substance A is found to change upon heating into two new pure substances B and C. Substance…

Q: Calculate the molar mass of an element if a 1.20 mol sample of it has a density of 2.18 g/cm3 and…

A: General chemistry.

Q: In a reaction, 34.0 g of chromium(III) oxide reacts with 12.1 g of aluminum to producechromium and…

A: Given data, The balanced chemical equation is given below, The mass of chromium(III) oxide = 34.0 g…

Q: If each of the 100 million automobiles contains 1.3 kg of CFC−12 and leaks 29 % of its CFC−12 into…

A: Given : Mass of CFC-12 in each automobile = 1.3 Kg Mass percent of CFC-12 that leaked per year = 29…

Q: The mass of Cu (63.55 g/mol) used to create Cu2S was 16.95 grams. what theoretical mass of Cu2S…

A:

Q: A student add 15g of baking soda to 10g of acetic acid in a beaker. A chemical reaction occurs and a…

A: Baking soda : NaHCO3 ACETIC ACID : CH3COOH

Q: Combustion of hydrocarbons such as methane (CH.) produces carbon dioxide, a "greenhouse gas."…

A: When methane gas is burnt , then Carbon dioxide gas and water vapours are formed. The Balanced…

Q: It takes 3.500 in³ of mercury to make one manometer. Find the price of the mercury used to make 19…

A: As you have not provided the cost for Mercury , So here I will be taking a sample cost of 100 to…

Q: A chemist adds 1.75 L of a 2.80 × 10 -5 mol/L mercury(II) iodide (Hgl,) solution to a reaction…

A: The concentration of any solution can be given by its molarity, molality and normality. The molarity…

Q: You have two distinct gaseous compounds made from element X and element Y.The mass percents are as…

A: To find: The simplest possible formulas for reactants and products in the given chemical equation.…

Q: An ice freezer behind a restaurant has a freon leak, releasing 41.59 g of C, H,F,Cl into the air…

A: Chlorofloro carbons are referred as the freons which depletes the ozone layer.

Q: the Daily Value for saturated fat is 20 grams (g), which equals 100% DV. If the Nutrition Facts…

A: Since daily value helps you to make informed food choices. It is labelled on right-hand side of…

Q: If 52.4 g of O2 is mixed with 52.4 g of H2 and the mixture is ignited, what is the maximum mass of…

A: Mass of O2 = 52.4 gm Mass of H2 = 52.4 gm Mass of H2O = ?

Q: The EPA has set a limit for uranium in drinking water at 30 micrograms per Liter. This corresponds…

A: The density of water is 1 g/ml. The volume of 1 gram of water is 1 milliliter. The volume of 2500…

Q: How much would a 138g piece of iron occupy?

A: Density of a substance is defined as the ratio of mass of substance and volume of that substance.…

Q: You wish to prepare 237 grams of 26.7% (w/w) KI. Assume that the density of water is 1.00 g/mL. You…

A: Given: mass of KI = 237g density of water = 1g/ml Weight of water =  density x mass concentration =…

Q: A student is given a 6.216 g mixture of iron filings, calcium chloride, and sand. He separates the…

A:

Q: A student has 27.8 grams of helium and requires 6,89 moles for an experiment. Does the sttdent have…

A: Given :  amount of He given = 27.8g  moles of He required = 6.89 moles

Q: Hydrogen cyanide, HCN, is prepared from ammonia, air, and natural gas (CH4) by the following…

A: The balanced reaction taking place is given as, => 2 NH3 (g) + 3 O2 (g) + 2 CH4 (g)…

Q: A. Calculations for the Determination of Ammonium Chloride The data from the data entry portion of…

A: Given that, Mass of evaporating dish, w1 = 38.478 g Mass of evaporating dish + original sample, w2 =…

Q: Aspirin can be prepared from salicylic acid (C7H;O3), which has a molar mass of 138.12 g/mol, and…

A:

Q: Filling the Blanks. Fill in the blanks with the correct word/words to complete the given statement.…

A: 1) Carbohydrates provide energy to the body, particularly through glucose, a simple sugar that is a…

Q: What is the mass of a golf ball traveling at 74.6 m s-1? The rest mass of a golf ball is 45.9 g, as…

A:

Q: An ice freezer behind a restaurant has a freon leak, releasing 40.82 g of C,H,F,Cl into the air…

A: Given: Total mass of C2H2F3Cl released per week = 40.82 g. And total months passed = 6 months. Since…

Q: A student performed an experiment of heating a hydrate and obtained the following data.    the mass…

A: Mass of the empty crucible =17.556g -----Equation A Mass of crucible and a hydrate= 21.018g…

Q: If a chemist were given 2.99 grams of a mixture of sugar and sand which gave 1.35 grams of sand on…

A: Given : Mass of mixture = 2.99 g Mass of sand = 1.35 g

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: What is the conversion factor for converting 888 grams of argon to liters?

A: Mass of gas = 888g Molar mass of gas = 39.948g/mol Moles of argon = 888g/39.948g/mol = 22.23 mol