Some iron wire weighing 5.6g is placed in a beaker and covered with 15.0g of dilute hydrochloric acid. The acid reacts with the metal and gives off hydrogen gas, which escapes into the surrounding air. After reaction, the contants of the beaker weigh 20.4g. What is the mass of hydrogen gas produced by the reaction?

Q: A 0.181 g piece of solid aluminum reacts with gaseous oxygen from the atmosphere to form solid…

A: The reaction of aluminum with gaseous oxygen can be expressed as,                        4 Al + 3 O2…

Q: When elemental iron corrodes it combines with oxygen in the air to ultimately form red brown…

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Q: Electrical energy is usually measured in kilowatt-hours, kWh. A Watt is 1 joule per second. A…

A: Ans.    1 Cal = 4.184 joules   776 Cal =776×4.184 joules                =3246.784 joules      Now…

Q: Liquid hexane CH3CH24CH3 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2 and…

A: The reaction taking place can be written as (C6H14 = hexane), => C6H14 + O2 -------> CO2 + H2O…

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A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

Q: The composition of a mixture of potassium chlorate and potassium chloride is to be determined. A…

A: According to the chemical reaction, shown below, 3 mol of oxygen gas is produced by decomposition of…

Q: A major component of gasoline is octane (C,H,). When octane is burned in air, it chemically reacts…

A: We will first write balanced stoichiometric equation, then using it calculate mass of oxygen…

Q: In one box of nails, there are 75 iron nails weighing 0.250 lb. The density of iron is 7.86 g/cm3.…

A: Given that mass of 75 nails of iron = 0.250lb = 113.4g Density of iron = 7.86g/cm3 (a) volume of…

Q: Cyanidin chloride (C15H11O6Cl) contains the cyanidin ion, a pigment found in many berries. Calculate…

A: Here, we have to calculate number of moles of cyanidin chloride present in 7.2 mg.

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A:

Q: A cheap reliable fertilizer, NH4NO3, adds nitrogen to the soil. If you add 48.5g of fertilizer to…

A: In order to find the amount of nitogen added to the soil we first write down the given data: Mass of…

Q: The average annual rainfall on Mount Waialeale on Kauai, Hawaii is 460.1 inches What is this average…

A: The average annual rainfall on mount waialeale on kauai, Hawaii is 460.1 inches. We know one inch of…

Q: What mass of iron in the nail reacted with the water?

A:

Q: Liquid octane (CH3(CH2)6CH3) will react with gaseous oxygen O2 to produce gaseous carbon dioxide…

A: The balanced reaction between octane and oxygen is written below.2C8H18+25O2 → 16CO2+18H2OThe mass,…

Q: When chlorine gas is bubbled into a solution of sodium bromide, the sodium bromide reacts to give…

A: Amount of a reactant reacted can be calculated using the amount of product formed using…

Q: A major component of gasoline is octane C3H18 When octane is burned in air, it chemically reacts…

A: Given data, Mass of octane= 9.63 g, molar mass=114 g mol-1 mass of oxygen required = ?, molar mass=…

Q: Ethanol is a common laboratory solvent and has a density of 0.789 g/mL. What is the mass, in grams,…

A:

Q: A major component of gasoline is octane (C3H18). When octane is burned in air, it chemically reacts…

A:

Q: Aqueous hydrochloric acid (HCl) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A:

Q: When chlorine gas is bubbled into a solution of sodium bromide, the sodium bromide reacts to give…

A:

Q: 1.93. Sodium metal reacts vigorously with water. A piece of sodium weighing 19.7 g was added to a…

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A: The mixture contains sand, salt and iodine. Mass of dried sand and evaporating dish = 103.987 g…

Q: Lipitor, a pharmaceutical drug that has been shown to lower "bad" cholesterol levels while raising…

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Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaH) to produce aqueous…

A:

Q: One gallon of gasoline burned in an automobile’s engine produces on the average 9.5 kg of carbon…

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Q: An irregularly shaped rock weighs 268.42 kg. It is placed in a cylinder that has 50.6 L of water.…

A: Given, Note: 1 Kg = 1000 g Mass of rock = 268.42 kg = 268.42 × 1000 g = 268420 grams Initially,…

Q: A gas company charges $1.30 for 15.0 ft³ of natural gas. What is the cost in $ per L?

A:

Q: A major component of gasoline is octane (C,H,). When octane is burned in air, it chemically reacts…

A:

Q: Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction…

A:

Q: A major component of gasoline is octane (C,H,). When octane is burned in air, it chemically reacts…

A: Reaction takes place: Octane (C8H18) reacts with oxygen gas (O2) to produce carbon dioxide (CO2) and…

Q: A major component of gasoline is octane (C,H8). When octane is burned in air, it chemically reacts…

A:

Q: A major component of gasoline is octane (C,H8). When octane is burned in air, it chemically reacts…

A: Octane reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical…

Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A:

Q: Franklin was performing an experiment by combining hydrochloric acid and sodium hydroxide. He…

A: The basis to answer this question is the law of conservation of mass.

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A:

Q: A major component of gasoline is octane (CgHis). When octane is burned in air, it chemically reacts…

A:

Q: A jet airplane reaches 675./kmh on a certain flight. How long does it take to cover 291.m? Set the…

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Q: Under certain conditions, the substances iron and oxygen combine to form iron(III) oxide. If 23.6…

A: Limiting reactant :- A reactant which is present in lesser number of moles than required as per…

Q: Aqueous hydrochloric acid (HC1) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Given : mass of HCl = 31.7 g mass of NaOH = 55.0 g The reaction taking place is  HCl + NaOH…

Q: Franklin was performing an experiment by combining hydrochloric acid and sodium hydroxide. He…

A: In the experiment of Franklin, the mass of the reactant material is 35 g. But after the reaction,…

Q: Aqueous hydrochloric acid HCl will react with solid sodium hydroxide NaOH to produce aqueous sodium…

A: We know that. Number of moles=given mass/molar mass Molar mass of HCl=1+35.5=36.5 g/mol Molar mass…

Q: A major component of gasoline is octane (C8H18). When octane is burned in air, it chemically reacts…

A:

Q: A particular brand of beef jerky contains 6.05x10-2% sodium nitrite by mass and is sold in an…

A: Given - Mass % sodium nitrite (NaNO2) =6.05×10-2%             Mass of bag = 8.00 oz

Q: Aqueous hydrochloric acid  HCl  will react with solid sodium hydroxide  NaOH  to produce aqueous…

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Q: Aqueous sulfuric acid (H,SO,) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Below attached file showing the details answer. All the best.

Q: A solid is weighed on the balance using the following steps: 1. The balance is tared. 2.…

A: The information given in the above problem are,                Mass of the weighing paper = 0.806 g…

Q: A major component of gasoline is octane (C3H18). When octane is burned in air, it chemically reacts…

A: For determining the amount of product, the mole ratio of reactants in a balanced reaction must be…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.