Relative atomic mass
26.0cm of a solution containinh 1.86g of X2CO3 in 250 reacted completely with 27.0cm of solution contain 3.65g of HCL per dm,calculate the molar mass of X2CO3 and relative atomic mass of X, and identify X.
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50.0 mL of 1.0 M HCl at 25.0oC were mixed with 50.0 mL of 1.0 M NaOH also at 25.0oC in a styrofoam cup calorimeter. After the mixing process, the thermometer reading was at 31.9oC. Calculate the energy involved in the reaction and the enthalpy per
You have isolated a strain of E. coli that is resistant to penicillin, streptomycin, chloramphenicol, and tetracycline. You also observe that when you mix this strain with cells of E. coli.
The magnitude of the maximum acceleration is typically 1.3 , but the driver will usually maintain a constant acceleration that is less than the maximum. A train travels through a congested part of town at 6.0 . Once free of this area, it speeds up
Analyze the "nullification" controversy of 1830. Who were the primary figures involved and how did this controversy represent significantly different viewpoints on the power of the federal government?
1.Why are there still poor people in America half a century after the implementation of a system of social welfare programs that were designed to end poverty?How much faith do you have that social security and Medicare will be there when it's y
When 228.4 mg of pure X was burned 627.4 mg of CO2 and 171.2 mg of H2O were obtained. Determine the simplest formula of the compound X.
A gas has a pressure if .37 atm at 50 C. what is the pressure at standard temperature?
The radius of the cylinder is 3.80 m and the coefficent of static friction between the rider and the wall is 0.480. Find the tangential velocity of the spinning wall necessary so that the riders do not slip down the wall.
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