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What quality of heat is required to change the temperature of 30.0g of water at 10Cto 25C
when the initial concentration of reactant is 0.71 m a second-order reaction has a half-life of 18 s then determines
The biologist estimates she will need 5100 L of air for the dive. Calculate the pressure to which this volume of air must be compressed in order to fit into the air tank. Write your answer in atmospheres.
Lead metal is added to 0.100M Cr3+(aq), Pb(s) + 2Cr3+(aq) -> Pb2+(aq) + Cr2+(aq)
Construct a reaction table for the process, and use it to calculate Kc at this temperature.
How does the chromatographic seperation ability of thin layer chromatography compare to seperation (resolving) power of column chromatography?
A sample of hydrogen was collected by water displacement at 23.0°C and an atmospheric pressure of 735 mmHg. Its volume is 568 mL. After water vapor is removed
A green leaf has a surface area of 2.10 cm^2. If solar radiation is 1150 W/m^2, how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation.
Describe the steps to be taken in the laboratory if a large bottle of acetone (noncorrosive, nontoxic, highly volatile, water-soluble, flammable solvent) is broken and spilled.
empirical and molecular formula what are both the empirical and the molecular formula for the compounds described
1 calculate the volume of 0.150 m naoh titrant added to 50.00 ml of a 0.0100 m hcl analyte solution to produce a ph of
The measured potential was 0.0330 V. What is the concentration of X when the potential is 0.0480 V? Assume that the electrode follows the Nernst equation, the temperature is at 25°C, and that the activity coefficient of X is 1.
What must be the atomic mass of the metal M If A sample of the compound MSO 4 weighing 0.1131 g reacts with barium chloride and yields 0.2193 g BaSO4.?
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