A current of 5.65 A is passed through a Cu(NO,), solution for 1.10 h. How much copper is plated out of the solution?

Q: What is the maximum mass of pure lead that could be extracted from 195. g of galena, a lead ore with…

A: Formula of galena = PbS Mass of Galena = 195.0 g Molar mass of Galena = 239.3 g/mol Mass of pure…

Q: Methane gas and oxygen gas react to form water vapor and carbon dioxide gas. What volume of carbon…

A: Answer: volume of carbon dioxide gas produced is 2.20 L.     given,             Volume of Methane…

Q: Calculate the minimum mass of butane

A:

Q: Calculate to the correct number of significant figures. (24.6681 x 2.38) + 332.58

A: Rules for performing addition and subtraction: Addition or subtraction is performed in a general…

Q: chemist determines by measurements that 0.0600 moles of oxygen gas participate in a chemical…

A: Number of moles of oxygen gas = 0.0600 moles

Q: The Daily Value for phosphorus is 900 mgmg. How many grams of phosphorus are recommended? Express…

A:

Q: A chemist prepares a solution of potassium chloride (KCl) by measuring out 0.60 g of KCl into a 100.…

A: Given Mass of KCl = 0.60 g Volume = 100 ml

Q: How many centiliters are in 3.78 x 105 microliters?

A: Given :- 3.78 x 105 microliters  To calculate :- volume in centiliters.

Q: Gaseous ethane (CH,CH, will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (CO,)…

A:

Q: Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water.…

A:

Q: Calculate the number of hydrogen atoms in a 150.0 g sample of ammonia (NH,). Be sure your answer has…

A: Given, Mass of sample of ammonia (NH3) = 150.0 g Number of hydrogen atoms in a 150.0 g sample of…

Q: mol

A:

Q: How many moles of water were lost if the amount of water lost was 0.378 grams?  Do not include units…

A: The moles of water that were lost if the amount of water lost was 0.378 grams are to be calculated.

Q: 1.6x103 / 2x103 give answer in exponential form

A:

Q: A chemist determines by measurements that 0.025 moles of hydrogen gas participate in a chemical…

A: Given ;- no.of moles of H2 gas = 0.025 mol  To calculate :- mass of H2 gas (in grams)

Q: A chemist prepares a solution of calcium sulfate (Caso,) by measuring out 0.14 µmol of calcium…

A: A micromole = 10-3 mmole

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

A:

Q: A chemist determines by measurements that 0.075 moles of chlorine gas participate in a chemical…

A: Given: Number of moles of Cl2= 0.075 molmolar mass of Cl2 is = 71 g/mol

Q: In an experiment a student used a 50 mL volumetric flask to prepare her copper solution but in…

A: step 1:  For making standard solutions, one must take care of the quantity that is to be taken…

Q: A student is try to calculate the density of a can . He already knows the mass but he needs to…

A: This question can be solved on the basic formula that describes the relationship between the mass…

Q: How many pm are there in  4.60x10 m? Enter the appropriate exponent as a number and not a word.

A:

Q: The scientist repeats the experiment, burning a new sample of steel wool until it is entirely…

A:

Q: Although the masses of Beaker A and Beaker B were different, you were able to determine the correct…

A: The determination of the masses of unknown objects is a fundamental process in the field of science,…

Q: 3. The mass of a gold nugget was measured and found to be 0.00320 grams. How many significant…

A: 3) Given : mass of gold nugget = 0.00320 g

Q: Liquid hexane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water.…

A: The combustion reaction is

Q: What are the final units in the following dimensional analysis problem? 4.25mL 10mol x 20mol

A:

Q: A 0.790 gram sample of copper is carried through the steps of an experiment. At the completion of…

A: Percent recovery  = (amount of substance recovered ÷ amount of  substance originally taken)×100%

Q: How many milligrams of arsenic would be a typical amount in a 60.-kg adult? Express the mass as an…

A: Minerals are vital for building the new tissues, muscle contraction, the transmission of nerve…

Q: Carbon disulfide gas and oxygen gas react to form sulfur dioxide gas and carbon dioxide gas. What…

A: Volume of CO2 = 6.0 L

Q: The chemical formula for hydrogen chloride is HCl. A chemist determined by measurements that 0.050…

A:

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.