Maxim777

a) Sulfur trioxide, SO3, is made industrially in enormous quantities by combining oxygen and sulfur dioxide, SO2. What amount (moles) of SO3 is represented by 2.60 kg of sulfur trioxide? b) Sulfur trioxide, SO3, is made industrially in enormous quantities by combining oxygen and sulfur dioxide, SO2. How many molecules are represented by 2.60 kg of sulfur trioxide? c) Sulfur trioxide, SO3, is made industrially in enormous quantities by combining oxygen and sulfur dioxide, SO2. How many sulf...

o Research the Emory University Planetarium and Observatory in Atlanta Georgia. Pretend you visited the planetarium or observatory in your area. o Write a 1,050- to 1,400-word report describing your experience: • The name of the facility and its association • The type of equipment • Showings (celestial objects observed) • Other things learned about astronomy • You can also include any planetarium show or videos you watched during your (mock) visit.

Pyrite is a mineral with formula FeS2. An impure sample of pyrite, known to be 90-95% w/w FeS2, is to be analyzed by oxidizing all the sulfur to SO42-, and then precipitating as BaSO4. Exactly how many grams of the sample must be taken if a minimum of 1.0 gram of BaSO4 is desired? ( stoichiometry).

Biochemistry Assignment #3

Assignment: SCIE207 Phase 3 Lab Report Title: Lab to Determine the Outcome of Heredity Instructions: You will fill out the Punnett squares and answer a set of questions for each exercise.

A sample of sodium chloride contained 22.6 g of the compound. How many moles was that?

Part 2 A. Mass of zinc used (g): 0.5 Grams B. Volume of 6M HCl used (mL): 10 mL C. Molecular weight of zinc (g/mol): 65.38 g/mol D. Moles of zinc reacted:

a.State the number of atoms of each element on each side of the following equation. CH4(g) 2O2(g) → CO2(g) 2H2O(g) Express your answers as an integer separated by commas. b.State the number of atoms of each element on each side of the following equation. 4P(s) 5O2(g) → P4O10(s) Express your answers as an integer separated by comma. c.State the number of atoms of each element on each side of the following equation. 4NH3(g) 6NO(g) → ...

Part 1 A. Mass of zinc used (g): 0.25 Grams B. Volume of 6M HCl used (mL): 10 mL C. Molecular weight of zinc (g/mol): 65.38 g/mol D. Moles of zinc reacted:

A tank of oxygen holds 28.0 L of oxygen (O2) at a pressure of 16.0 atm . When the gas is released, it provides 310. L of oxygen. What is the pressure of this same gas at a volume of 310. L and constant temperature? Express your answer with the appropriate units.