How many number of moles of barium sulphate are formed
500cm3 of 0.250M of na2so4 is added to an aqueous solution of 15.0g of BaCl2 resulting in a white precipitate of insoluble BaSO4. how many number of moles and how many gram of BaSO4 are formed?
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An airline passenger dangles her watch from a string while the jet takes off. The string makes an angle of 25o with respect to the vertical while the aircraft accelerates for takeoff, which takes about 18 seconds. Estimate the takeoff speed of the
Discuss five Indirect or direct environmental issues of database management system?Describe some current or potential ethical consideration on database management system.
Calculate the equilibrium constant, Kc, she obtained for this reaction. A student ran the following reaction in the laboratory at 689 K
A space station, in the form of a wheel 115 m in diameter, rotates to provide an "artificial gravity" of 3.20 m/s2 for persons who walk around on the inner wall of the outer rim. Find the rate of rotation of the wheel (in revolutions per minute) t
Calculate the amount of heat evolved in the oxidation of 32.0 g of Fe (Ar = 55.85 g/mol) at 25 oC and 1 atm pressure ( ΔHfo(Fe2O 3,s) = -824kJ/mol)
What is the specific heat of aluminum if the temperature of a 28.4 g sample of aluminum is increased by 8.1 oC when 207 J of heat is added?
A skydiver whose parachute is fully deployed is descending at constant speed. Describe what is happening to her kinetic energy, her potential energy, and her total mechanical energy as she falls. Is any work being done? If so, by what force or for
How and why slavery developed in the American colonies. Why couldn't colonists use indentured servants as they had in the past?
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How does a country gain "power" within the international system? Provide two specific examples to support your response.
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Why is sea power an important element of the great power competition? Identify a current example of the great power competition that poses a challenge
Read "Moral Criticisms of the Market" by Ken S. Ewert (found in the Learn section) Do you agree with the critique of the market in Ewert's article?
For your first major assignment, you will reflect on your childhood, your roots, and write an "I am from" poem in the style of George Ella Lyon.
Draft a 6- to 7-page paper in which you analyze the data collection and organization that the healthcare administration leaders in the scenario
Part of the project is to submit the final version of your long business report on a career or industry trend in the last three years.