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Write the balanced complete ionic equations and net ionic equations for the reactions that occur when each of the following solutions are mixed.AgNO3(aq) and K2SO4(aq)
Assuming that a neutron star has the same density as a neutron, calculate the mass in kilograms of a small piece of a neutron star the size of a spherical pebble with a radius of 0.10 mm.
The reactant concentration in a zero-order reaction was 9.00×10^-2 M after 100s and 2.50×10^-2 M after 390s . What is the rate constant for this reaction
What mass (in grams) of solid KCl would need to be added to 500 grams of water to make an ideal solution with a boiling point of 106.8
Calculate the freezing point of a 0.08500 m aqueous solution of NaNO3. The molal freezing point depression constant of water 1.86 degrees C/m.
What is the pH of a buffer prepared by adding 0.809mol of the weak acid HA to 0.305mol of NaA in 2.00L of solution? the dissociation constant Ka of HA is 5.66x10^-7
Calculate the heat of solution for sodium acetate when 35.0mL of water is in a calorimter and 1.5461g of sodium acetate is added. The initial temperature is 23.0 C and the final temperature is 24.8 C.
When 2-methylpropene is treated with sulfuric acid the resulting mixture can be used to convert benzene to tert-butylbenzene
A. Epinephrine, C9H13NO3, has a concentration of 10-10 M in circulating blood. Calculate the diameter of a round swimming pool with a water depth of 2.0 M that would be needed to dissolve 1.0 g (about a teaspoon) of epinephrine.
Which of the following would have the lowest frequency factor A( part of the Arrhenius equation in a situation where all concentration are 1M and take place at identical temperatures
Instant cold packs used to treat athletic injuries contain solid NH4NO3 and a pouch of water. When the pack is squeezed, the pouch breaks and the solid dissolves
How many grams of dipotassium phthalate (242.3 g/mol) must be added to 700 mL of 0.175 M potassium hydrogen phthalate to give a buffer of pH 6.00?
How much sodium nitrate (NaNO3), in grams, should be added to water to prepare .05L of solution with a molarity of .25M?
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