How many grams of nitrogen gas are present
A sample of nitrogren gas is collected in a 100 mL container at a pressure of 688 mm Hg and a temperature of 565 degrees C. how many grams of nitrogen gas are present in this sample?
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Draw an electron-dot structure for hydrogen peroxide. Write balanced chemical equations for reactions of hydrogen peroxide, and tell whether hydrogen peroxide is acting as an oxidizing agent or a reducing agent in the reactions.
How would you prepare 100ml of 0.5M NaOH? Calculate the mass of NaOH needed, and describe the procedure and glassware you would use.
A sample of neon gas is held in a rigid 1.814L container with a pressure of 1.273atm at 25 C. 3.193g of an unknown gas is added to the container. The temperature remains constant, but the pressure rises to 2.386atm. What is the molar mass of the a
A patient needs to take 625 of ibuprofen twice daily. The pills in the bottle are each 250. How many pills does the patient need to take each time she wants the 625 dosage?
Calculate the mass of ethylene glycol (C2H6O2) that must be added to 1.00 kg of ethanol (C2H5OH) to reduce its vapor pressure by 12.0 torr at 35 degrees C. the vapor pressure of pure ethanol at 35 degrees C is 1.00 x 10^2 torr.
Chloral hydrate (C2H3Cl3O2) is a drug formerly used as a sedative and hypnotic. It is the compound used to make "Mickey Finns" in detective stories.
An automobile gasoline tank holds 22 kg of gasoline. When the gasoline burns, 83 kg of oxygen is consumed and carbon dioxide and water are produced. What is the total combined mass of carbon dioxide and water that is produced?
A spherical balloon containing 5.035 mg of hydrogen gas in its standard state of aggregation behaving ideally is attached to one end of an open tube cylindrical mercury manometer (see figure) where atmospheric pressure is 101325 Pa and the temperatur
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create a collection of secondary sources in preparation for your project, a proposal for a museum exhibit about a historical event or subject.
In this final week, students will be wrapping up their writing of the Final Paper on a War Crimes topic of their choosing (approved by the instructor
What are some of the artist's most famous works of art? Choose one of these works. In what ways is the piece characteristic of the movement specified above?
The power of the national government has expanded a great deal in the last two centuries. There are legitimate arguments to be made that the national government
Please read the Las Casas document and then answer the following questions. For questions 3 through 10, please use complete sentences.
For your journal, you will identify a historical or modern-day woman leader and reflect on some of the challenges she faced in leadership.
How did Enlightenment Era thought to influence the Declaration of Independence? In your answer, be sure to address how political thought evolved