Calculate the volume of koh required
volume of 20.0 mL of a 0.190 M HNO3 solution is titrated with 0.550 M KOH. Calculate the volume of KOH required to reach the equivalence point.
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If the minimum energy required to break the C-Cl bond in CF3Cl is 540 kJ/mol, what is the longest wavelength of radiation that will break this bond?
What is the concentration of Cu2+ in the sample? State any assumptions you might make and pay attention to significant figures.
A motorist starts from rest at point A on a circular entrance ramp when t = 0, increases her speed of her car at a constant rate and enters the highway at point B.
Cobalt-60 is commonly used as a source of B-particles. How long does it take for 87.5% of a sample of cobalt-60 to decay, given that the half-life is 5.36 years?
Assume that a receiver has first amplifier stage with a 5k ohms input resistance, a power gain of 300, an input audio signal of 20uV, and an operating temperature of 27 Celsius. When the amplifier is operating with a bandwidth first of 10MHz,
Assuming that the total pressure of the gases is 1.48 atm and that their mole ratio is 94 : 4.0 : 1.5 : 0.50, calculate the partial pressure (in atmospheres) of each gas.
How many molecules of acetylene (HCCH) react with 123 molecules of oxygen to produce carbon dioxide and water?
What volume of pure O2(g), collected at 27°C and 746 torr, would be generated by decomposition of 128 g of a 50.0% by mass hydrogen peroxide solution?
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