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1. An electron traveling at 5.8x10^5 m/s has an uncertainty in it's velocity of 3.00x10^5 m/s. What is the uncertainty in this position?
2. The smallest atoms can themselves exhibit quantum mechanical behavior. Calculate the de Borglie wavelength (in pm) of a hydrogen atom traveling 435 m/s.
A 47.60 g sample of liquid magnesium at 738.0 °C is poured into a mold and allowed to cool to 28.0 °C. How many kJ of energy are released in this proces
You have 25 ml of an ATP solution. You take 30 µl and dilute to a final volume of 10 ml. The OD of this solution is 0.432. What is the concentration of the undiluted ATP solution
A gas of unknown molecular mass was allowed to effuse through a small opening under constant-pressure conditions. It required 62s for 1.0L of the gas to effuse. under identical conditions it required 28s for 1.0L of O2 to effuse. Calculate the mol..
When cobalt chloride is added to pure water, the CO ^2+ ions hydrate. The hydrated form then reacts with the Cl^- ions to set up equalibrium shown here
It is possible to draw a valid Lewis structure that follows the octet rule for all of the following except one. Which one cannot be drawn without violating the octet rule
which of the following substances with specific heat capacity provided would show the greatest temperature change upon
Which of the following describes what happens to the solubility of a slightly soluble ionic compound when a common ion is added to the solution
Problem- Nutritional tables give the potassium content of a standard apple as 159 mg. There are about 3 apples/Ib. How many grams of potassium are in 40.36 kg of apples
a furniture factory needs 31.5 ft2 of fabric to upholster on a chair. its dutch supplier sends the fabric in bolts of
Copper is elctroplated from CuSO4 solution. A constant current of 4.00 amp is applied by an external power supply. How long will it take to deposit 1.00x10^2 g of Cu? The atomic mass of copper is 63.546.
what is the molarity of a 99.O mL ethanol solution containing 8.11g of ethanol (C2H5OH)
The standard enthalpy and entropy for a slightly soluble salt at 25 degrees C were determined to be 36 kJ and 47 J/K respectively. Calculate the standard Gibbs Free Energy for this salt.
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