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Problem- How many grams of C12H22O11 must be added to 552 g of water to give a solution with a VP 2.0 mmHg less than that of pure water at 20 C? (The VP of water at 20C is 17.5 mmHg).
Heat leaks into the interior compartment of a refrigerator at a rate of 100 cal/s. if the air outside is 30 degC, how many watts of electricity are needed to keep the interior at 4 degC. assume an ideal, reversible refrigerator.
the pH of a 0.20 M solution of a weak monoprotic acid is 3.70. What is the value of the ionization constant
if a 189-mg piece of gold density 19.32 gcm3 is hammered into a sheet measuring 2.4 ft 1.0 ft what is the average
considernbspthe following scenario in your assigned discussion group phoenix homeless agency pha needs funds to
The standard reaction enthalpy for the decomposition of CaCl2_NH3 into CaCl2 and NH3 is nearly constant at +78 kJ/mol between 350 K and 470 K.
If 10.0 L of carbon dioxide gas at STP and 50.0g of sodium chloride react with excess ammonia and water, what is the limiting reactant and the mass of baking soda produced
What will the percentage of mercury (I) ions remaining in solution be?
Explain why the radii of atoms do not simply increase uniformly with increasing atomic number.
Graphite is a semi-metal composed of sheets of fused benzene rings. There are no bonds between sheets, only van der Waals interactions
Indicate whether the following balanced equations involve oxidation-reduction. If they do, identify the elements that undergo changes in oxidation number.
What is the mole ratio of CH3COONa to CH3COOH (Ka= 1.8×10-5 ) would be in a buffer solution at pH 5
A typical home uses approximately 2000 kWh of energy per month. If the energy came from a nuclear reaction, what mass would have to be converted to energy per year to meet the energy needs of the home
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