Given the mass ratio of in is , what would be the mass of required to fully react with to form
20 Aug 2021is formed by the fusion of and gases.Given the mass is , what would be the mass of required to fully react with
20 Aug 2021What is the ratio between the mass of in and
20 Aug 2021What is the ratio between the mass of and in and , respectively? Is the ratio always a whole number?
20 Aug 2021Given two binary compounds, and , containing iron and chlorine, and the mass ratio of in and is . What are the chemical formulas of and
20 Aug 2021Copper can form two binary compounds with chlorine, and . It is known that of copper would need of chlorine to form and the ratio of in is . What would be the mass of chlorine required to react with of to form
20 Aug 2021Iron and carbon monoxide are produced through iron (III) oxide and soot (pure carbon). If of is used, how many kilograms of iron can be produced?
20 Aug 2021The elements and form two binary compounds. A of sulfur sample would require and of oxygen to form compounds and , respectively. What is the chemical formula of and ? Assume only one sulfur atom present in and and both are neutral molecules.
20 Aug 2021What is the number of protons in
20 Aug 2021For helium, , what is the number of neutrons?
20 Aug 2021What is the number of electrons of a sodium atom,
20 Aug 2021What is the number of electrons in a sodium ion, ? Given that a neutral atom is
20 Aug 2021Copper can be extracted from an alloy, such as brass ( and ), by a process named electrolysis. A of brass was subjected to electrolysis to extract copper. After the reaction, one of the electrodes was coated with of copper. What was the in the brass?
20 Aug 2021A combustion reaction of propane was carried in a closed combustion vessel.Heat can be exchanged between the vessel and the environment. Excess oxygen was also supplied to the vessel. If the mass of the gases in the vessel after combustion was and oxygen gas added was , what wou...
20 Aug 2021Consider the following reaction in a beaker:The mass of the mixture before the reaction was . After the reaction, of gas were produced. What is the final mass of the reaction mixture in the beaker? Did this reaction violate the law of conservation of mass?
20 Aug 2021Consider the following reaction in a beaker:If the total mass of reactant before the reaction is , what is the mass of the reaction mixture after the reaction?
20 Aug 2021Calculate the amount of copper (in moles) in a 36.3 g pure copper sheet.
20 Aug 2021If a dose of a few tenths of a microgram of a certain substance is sufficient to kill a mouse, approximately what mass of the substance would be fatal to you? What average level of the substance would have to be present in the water you drink if you were to receive a fatal dose f...
20 Aug 2021Iodine and bromine react to give iodine monobromide, . What is the equilibrium composition of a mixture at that initially contained each of iodine and bromine in a vessel? The equilibrium constant for this reaction at is
20 Aug 20214. (a) In an industrial process, a fuel-air mixture occupying a volume of 500 L is fitted with a piston. When the mixture is ignited at a constant pressure of 600mmHg, 2.0 kJ of energy is released. To what volume the mixture would have expanded if all the energy released is conve...
20 Aug 2021Give the IUPAC name for each of the following
20 Aug 2021What is the freezing point of an ethanol solution that boils at 80.00 °C? Data for ethanol:
20 Aug 2021What is the mass ratio between and in an molecule? Will this ratio change with the total mass of
20 Aug 2021For the following reaction, what is the final concentration of Na2SO4(aq) if we start with 2.00 mol NaOH(aq) in 2.00 L of water? Assume any water created in the process can be ignored.
20 Aug 2021The rusting of iron can be described by the following reaction:If 1.00 mol of Fe(OH)3 (iron rust) is produced in a 3.00 L vessel from excess iron and water, what was the concentration of oxygen used?
20 Aug 2021In the following reaction, if there are 2.00 g of tin oxide to start with and excess hydrogen, what is the ratio between solid tin and water at equilibrium?
20 Aug 2021Using the following reaction, what is the final concentration of KCl if we start with 1.00 mol HCl in 1.00 L of water? Assume that any amount of water added is negligible.
20 Aug 2021What is the number of ions in of
20 Aug 2021of reacts with an excess amount of . What is the number of mole of
20 Aug 2021What is the number of mole of glucose (
20 Aug 2021Determine the number of molecules of
20 Aug 2021What is the number of atoms present in of
20 Aug 2021What is the mass of of
20 Aug 2021What is the mass () of of
20 Aug 2021Calculate the mass () of unit of
20 Aug 2021Given the mass of is . What is the molar mass of
20 Aug 2021The mass of of compound is found to be . Determine the molar mass of compound
20 Aug 2021A container contains molecules of , a diatomic molecule. The mass of all molecules is determined to be . What is the identity of
20 Aug 2021A sample of pure chemical compounds contains sulfur. What is the % composition of sulfur?
20 Aug 2021A of pure binary compound, , contains of . What is the % composition of
20 Aug 2021What is the mass percentage of in
20 Aug 2021What is the mass (in kg) of 5.65x10^25 of CO2? The molar mass of CO2 is 44.01g/mol.
20 Aug 2021A closed manometer is filled with mercury and attached to a container of helium. The difference in height of mercury between the two arms is . What is the pressure of the helium, in
20 Aug 2021An open manometer connected to a tank of argon has a mercury level higher in the atmospheric arm. If the atmospheric pressure is , what is the pressure of the argon in
20 Aug 2021An open manometer is filled with mercury and connected to a container of chlorine gas. The mercury level is higher in the arm of the tub open to the atmosphere. Atmospheric pressure is . What is the pressure of the chlorine gas, in
20 Aug 2021The mercury level in the sample arm of an open manometer is higher than in the open arm when the atmospheric pressure is . What is the pressure of the gas in
20 Aug 2021An open manometer is filled with mercury and the closed end is filled with ammonia. If the mercury rises on the side of the manometer attached to the ammonia, what is the pressure of the ammonia in if the atmospheric pressure is
20 Aug 2021A closed manometer is filled with mercury and attached to a container of oxygen gas. The difference in height of mercury in the two arms is . What is the pressure of the oxygen gas in
20 Aug 2021An open-ended manometer is filled with mercury (). The mercury is higher on the gas side. Define the gas pressure if the other side is open to the air at sea level and determine the gauge pressure.
20 Aug 2021Calculate the pressure of a sample gas which is measured at sea level, if the mercury inside the manometer is higher on the open-ended side. What is the gas pressure in
20 Aug 2021