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If 0.701 g of aluminum reacts with an excess of HCl at 25 degrees C and 753 mm Hg, how many mL of hydrogen gas will be produced?
There is an increase in temperature of 56 K. Calculate the heat lost or gained by the system in response to this change in the external temperature.
What is the basis for signal generation in this technique (i.e., describe how and what signal is measured by the scanning probe electronics)
If 2.45 g of N2H4 reacts and produces 0.650 L of N2, at 295 K and 1.00 atm, what is the percent yield of the reaction?
a solution of alcohol c2h6o in water has a molality of alcohol of 3.25 molkg. in this solution what is the percent by
if 7.o moles of sulfur atoms and 10 moles of oxygen molecules are combined to form the maximum amount of sulfur trioxide, how many moles of which reactant remain unused at the end.
Polyunsaturated fatty acids (PUFAs) have several carbon-carbon double bonds as present in beta-carotene
What is the concentration in mol/L of a solution with 8.52g MgCl2 dissolved in 150.0ml of solution. What is the concentration of Mg2+ and Cl- ions.
WHat are the boiling points and freezing point of a 2.97m solution of naphtalene in benzene. ( the boiling point and freezing point of benzene are 80.1 C and 5.5 C, respectively)
A buffer contains 0.010 mol of lactic acid (pKa=3.86) and 0.050 mol of sodium lactate per liter. Calculate the change in pH when 5mL of 0.5M NaOH is added to 1L of the buffer.
a 0.2527-g sample of a mixture of mgoh2 and aloh3 was treated with 50.00 ml of 0.225 mol l?1 hclaq. the resulting
A 1.00 g sample of an unknown gas occupies 418 mL at 23.0 oC and 715 torr. Calculate the density at 23.0 oC and the molar mass of the gas.
Compute the final pressure in the tank if nothing else is altered in the surroundings. (The two gases do not react)
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