A 2.000 gram sample containing graphite (carbon) and an inert substance was burned in oxygen and produced a mixture of carbon dioxide and carbon monoxide in the mole ratio 2.00: 1.00. The volume of oxygen used was 747.0 milliliters at 1,092K and 12.00 atmospheres pressure. Calculate the percentage by weight of graphite in the original mixture.

Q: If sufficient acid is used to react completely with 10.5 grams of Mg ,…

A: Magnesium reacts with hydrochloric acid to form magnesium chloride and hydrogen gas. The equation…

Q: A mixture of solid calcium oxide, CaO, and solid barium oxide, BaO, weighing 5.107 g is added to…

A: The objective of the question is to-a) Calculate the moles of carbon dioxide consumed by the…

Q: Part B The cylinder contains 0.348 mol of jobstium under these conditions. What is the pressure in…

A: Given: The temperature, (T)=326 K. The volume , (V)=27 L. The number of moles of the gas, (n)=0.348…

Q: What

A: Mole fraction is the ratio of mole of component to the total mole of component

Q: The concentration of Argon in the atmosphere is 9340 ppmv. Express this value in terms of the…

A: Given data: Concentration of argon in atmosphere=9340 ppmv 1.To find percentage of the atmosphere…

Q: A 25.0 mL sample of 0.120 M hydrochloric acid was added to an excess of calcium carbonate. The…

A:

Q: If a 2.183 g sample of impure cobalt(III) carbonate is heated, and 500 mL of carbon dioxide is…

A: The question is based on reaction stoichiometry. we have been given quantity of carbon dioxide…

Q: Calculate the volume of OX 10.5 grams potassium chlor

A: Calculate the volume of oxygen gas produced at STP by complete decomposition of 10.5g of potassium…

Q: The earth's atmosphere consist of the 78.09% N2, 20.95% O2, 0.92% H2O, 0.03% CO2, and 0.01% other…

A: Percentage of CO2 or for solving question we can say that Mole fraction  of CO2 is 0.03

Q: Calculate the pressure inside a tube, given that the tube’s volume is 4.0 L, its temperature is 22…

A:

Q: The oxidation of trichloroethane results in the following reaction equation: 4 CaH,C|a() + 11 0, (g)…

A:

Q: sample of oxygen gas was collected by displacement of water in gas collection apparatus. The total…

A: Here we have to use Daltons law- Ptotal=Pwater+Poxygen It is given vapor pressure of water is 22.6…

Q: A 0.0665 g sample of aluminum metal reacts with hydrochloric acid to give 90.5 mL of hydrogen gas at…

A: Stoichiometry relates the amount of reacting with the formed species. As per this concept, the…

Q: Calculate the root mean square velocity, in m/s, of Cl2 at 273.0 K. Assume ideal gas behavior

A: Molar mass of Cl2 is 70.906 amu

Q: Consider the following balanced reaction: 2 H₂S(g) + 3 O2(g) → 2 H₂O(l) +2 SO₂(g) 5.00 L of H₂S and…

A: The objective of this question is to determine the volume of sulfur dioxide (SO2) produced when 5.00…

Q: What is the total volume of gases produced at 819 Kk and how 1.00 atm pressure when 320 g of…

A: The objective of this question is to calculate the total volume of gases produced when 320 g of…

Q: What is the experimental molar mass (that is, calculated from the data given and not taken from the…

A: Mass of magnesium = 0.0294 grams Temperature  of Hydrogen gas = 25.9°C  or 299.05K partial pressure…

Q: 1.703 g Al reacts with 1.95 mL of H2SO3 (g) at 30.0 °C and 611.1 kPa. Calculate the mass of…

A: Given data mass of Al = 1.703 g volume of H2SO3 = 1.95 mL = 0.00195 L Temperature : T=30 °C pressure…

Q: Acetone has the chemical formula C₂H₂O. a) Show the full electron configuration for C. How many…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: The reaction of metallic aluminum with aqueous hydrochloric acid produces hydrogen gas. 2 Al(s) + 6…

A: The balanced reaction taking place is given as,

Q: Hydrogen gas, oxygen gas, and water vapor are collected in eudiometer. The eudiometer contains…

A:

Q: What is the experimental molar mass (that is, calculated from the data given and not taken from the…

A: a). Pressure ( P ) = 727.5 torr = ( 727.5 / 760 ) atm = 0.957237 atm Temperature ( T ) = 22.2 °C =…

Q: What volume of hydrogen gas is produced when 92.1 g of sodium reacts completely according to the…

A: Given, Sodium(s) + water(l) -----> sodium hydroxide(aq) + hydrogen(g) mass of sodium (Na) reacts…

Q: If the total pressure of a mixture of gases was 760 mm Hg and its composition is 20% oxygen, 0.04%…

A:

Q: In deep sea diving the composition of air a diver breathes must be changed in accordance with the…

A: Given that : % of oxygen in the air = 20% The partial pressure of oxygen in air = 0.20 atm Total…

Q: A 2.43 L volume of hydrogen measured at −150. °C is warmed to 100.°C. Calculate the volume (in L) of…

A: Given: Initial Volume V1 = 2.43 L Initial Temperature T1 = -150 oC= 123 K Final Temperature T2 = 100…

Q: What volume of molecular oxygen gas measured at 25 °C and 760 torr is required to react with 3.00 L…

A: Since condition remains same so, we will use simple ratio of volume to calculate the volume of O2…

Q: 1. A student following the procedure described in this module collected the following data: mass…

A: According to Q & A guidelines of Bartleby, we are supposed to answer only the first 3 sub-parts…

Q: Using stoichiometry, calculate the volume of O2 gas at 1.25 atm and 18.0 ̊C, which forms when 10.5 g…

A: The given reaction is

Q: A student collects 69.2 mL of hydrogen gas from the reaction of 0.082 grams of magnesium solid with…

A:

Q: 0.200 g of aluminum reacts 854.0 ml of hydrogen sulphate gas at 30.0 o C and 123.0 kPa, calculate…

A: Mass of aluminium = 0.200 g Volume of H2SO4 = 854 ml = 0.854 L T = 30oC = 303 K P = 123 kPa = 1.214…

Q: determine 1) the limiting reagent, 2) the moles of each reactant left over, and 3) volume (in L) of…

A:

Q: 1) a) Sulfuric acid, the industrial chemical produced in the greatest quantity each year, is…

A: Given :  Mass of sulfur = 1850 gm  Volume of O2 gas = 6.50 x 101 ml = 6.5 x 10-2 L  Pressure of O2…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.