Temperature of Distilled H2O = 22 *C Room (or regional) Pressure (atm) = 0.04 atm Initial...

Temperature of Distilled H2O = 22 *C Room (or regional) Pressure (atm) = 0.04 atm Initial Volume of Air (mL) = 10 mL Final Volume of Air (after reaction) (mL) = 40 mL Volume of O2 Collected (Final Volume - Initial Volume) = 30 mL w/ 5 mL H2O2 solution used. Given the above variables, determine the percentage of hydrogen peroxide in your solution.

Expert Solution

queen_honey_blossom answered 2 years ago

Table 1: Temperature, Pressure and Volume Data Temp of distilled H2O Room pressure (atm) Initial Volume...

Table 1: Temperature, Pressure and Volume Data Temp of distilled H2O Room pressure (atm) Initial Volume of Air (mL) Final Volume of Air (mL) Volume of O2 Collected (mL) 21.1°C 1 10mL 60mL 50mL this experiment was done by mixing hydrogen peroxide (3%) and yeast in a flask where the trapped gas would travel through flexible tubng and displace air in an inverted graduated cylinder that is full of water. 1. Calculate the number of moles of O2 produced using...

The air in a room has a pressure of 1 atm, a dry-bulb temperature of 24°C,...

The air in a room has a pressure of 1 atm, a dry-bulb temperature of 24°C, and a wetbulb temperature of 17°C. Using the psychrometric chart, determine (a) The specific humidity, (b) The enthalpy, in kJ/kg dry air, (c) The relative humidity, (d) The dew-point temperature, and (e) The specific volume of the air, in m3/kg dry air.

A gas occupies 13.5 mL at 0.990 atm at room temperature. What is the pressure if...

A gas occupies 13.5 mL at 0.990 atm at room temperature. What is the pressure if the volume becomes 15.0 mL?

Air at a pressure of 1 atm and a temperature of 50°C is in parallel flow...

Air at a pressure of 1 atm and a temperature of 50°C is in parallel flow over the top surface of a flat plate that is heated to a uniform temperature of 100°C. The plate has a length of 0.24 m (in the flow direction) and a width of 0.12 m. The Reynolds number based on the plate length is 30,000. (a) What is the rate of heat transfer from the plate to the air? (b) If the free stream...

Part A. A volume of 125 mL of H2O is initially at room temperature (22.00 ∘C)....

Part A. A volume of 125 mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. If the final temperature of the system is 21.20 ∘C , what is the mass of the steel bar? Use the following values: specific heat of water = 4.18 J/(g⋅∘C) specific heat of steel = 0.452 J/(g⋅∘C) Express your answer to three significant figures and include the appropriate units.

A volume of 80.0 mL of H2O is initially at room temperature (22.00 ∘C). A chilled...

A volume of 80.0 mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. If the final temperature of the system is 21.50 ∘C , what is the mass of the steel bar? Use the following values: specific heat of water = 4.18 J/(g⋅∘C) specific heat of steel = 0.452 J/(g⋅∘C)

Part A A volume of 105 mL of H2O is initially at room temperature (22.00 ∘C)....

Part A A volume of 105 mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. If the final temperature of the system is 21.00 ∘C , what is the mass of the steel bar? Use the following values: specific heat of water = 4.18 J/(g⋅∘C) specific heat of steel = 0.452 J/(g⋅∘C) please show work Part B The specific heat of water is 4.18 J/(g⋅∘C). Calculate the...

The equilibrium vapor pressure of mercury at room temperature is about 1.6x10-6 atm. Imagine an old...

The equilibrium vapor pressure of mercury at room temperature is about 1.6x10-6 atm. Imagine an old chemistry lab that over the years has experienced enough liquid mercury spills and thereby accumulated enough mercury in cracks in the floor, etc. that mercury liquid-vapor equilibrium has been established. What is the concentration, in the units of milligrams per cubic meter, of Hg0 in the air of the room? Does this value exceed the limit of 0.05 mg m-3 established by the American...

100 people enter a room that is initially at a temperature of 15 C and pressure...

100 people enter a room that is initially at a temperature of 15 C and pressure of 1bar. Each person losses heat to the air in the room at a constant rate of 300 W at a constant temperature of 37 C. The air mass in the room is 750 Kg, remains constant and its cv = 0.79 kJ/(Kg K), cp = 1.08 kJ/(Kg K) and the gas constant is 0.287 kJ/(Kg K). Air enters the room at a temperature...

100. mL of H2O is initially at room temperature (22.0∘C). A chilled steel rod at 2.0∘C...

100. mL of H2O is initially at room temperature (22.0∘C). A chilled steel rod at 2.0∘C is placed in the water. If the final temperature of the system is 21.1 ∘C, what is the mass of the steel bar? Specific heat of water = 4.18 J/g⋅∘C Specific heat of steel = 0.452 J/g⋅∘C Express your answer numerically, in grams, to one significant figure.

Question