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If water at the boiling point is saturated with potassium hydrogen tartate, 30 mL of the solution requires 49.5 mL of 0.2 M NaOH in a titration. What is the KSP of potassium hydrogen tartate at this temperature and what is the solubility in g/L.
What is the pH of a phosphate solution made by the addition of 2.5 equivalents to an initial solution of phosphoric acid. The three pKa values of phosphate
efficiency for conversion of potential to electrical energy, and 8% loss of the resulting power in transmission, what is the mass flowrate of water required to power a 200-watt light bulb?
Experimental solid-oxide fuel cells that use butane (C4H10) as the fuel have been reported recently. These cells contain composite metal/metal oxide electrodes and a solid metal oxide electrolyte. Consider the following unbalanced half-reactions:
Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts.
A 14.31 g sample of hydrated magnesium sulfate (MgSO3• x H2O) is heated to remove the water of crystallization and 6.99 g of anhydrous magnesium sulfate (MgSO4) remains.
Without a reference sample of a pure compound, can melting point alone be used to unambiguously assignt the correct chemical structure
A cell has a standard emf of +0.116 V at 298K. What is the value of the equilibrium constant for the cell reaction if n=1, n=2, and n=3
The rate equation for the decomposition of n2o5 (giving NO2 and O2) is rate=k[N2O5]. For the reaction at a particular temperature, the value of k is 5.0x10^-4 s^-1.
Therefore the formula is N2O4 Dinitrogen tetraoxide. Recognizing Incorrect Names and Formulas of Explain what is wrong with the name of formula in the second.
Determine how many moles each of Na+ and Cl- are in 0.700 L of the saline solution (A physiological saline solution contains 167 mEq/L each of Na+ and Cl-.)?
a sample containing 1.50 moles of neon gas has a volume of 8.00 liters. what is the new volume if 25.0g of neon is added.
The density of carbon in the form of diamonds is 3.51 g/cm^3. If you have a 40-carat spherical diamond, what is the diameter of the diamond in millimeters?
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