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A buffer was prepared by adding 2.4 g of ammonium nitrate to 100 mL of 0.30 M ammonia (Kb = 1.8 x 10^-5). To this solution was then added 10.0 mL of 0.30 M sodium hydroxide, what is the new pH?
4 moles of nitrogen gas is placed inside a piston and cylinder device. The piston has a mass of 50 kg and an area of 0.05 m2. 100 kg of weights are placed on the piston. After coming to equilibrium the piston is locked into place.
Is each of the following salts acidic, basic or neutral in aqueous solution. Use appropriate equations to explain why for each please. a) NH4Cl b) NaClO4 c) NaNO2
if you have 4 moles of hydrogen gas, how many moles of oxygen gas are needed for complete reaction?
Given the following equation, how many grams of PbCO3 will dissolve when 1.5L of 1.00 M H+ is added to 6.00g of PbCO3? PbCO3(s) + 2H^+(aq) = Pb^2+(aq)+ H2O (l)+ CO2(g)
Why are there axial and equatorial hydroxyl isomers for 4-tert-butycyclohexanol, but not for cyclohexanol
box contains a mixture of small copper spheres and small lead spheres. the total volume of both metals is measured by
Due to oxygen consumption by the above reaction, the dissolved oxygen concentration in the water is only 2 mg/L. What is the maximum amount of energy that an organism could obtain by oxidizing 1 µmol of the organic matter
Using your average value for Kc and the concentrations provided for the reactants, determine the absorbance expected when 16.00mL of Fe 3+ (aq) is reacted with 10.00 mL of SCN (aq).
An Erlenmeyer flask weighs 148.8 g when empty. When filled with water (d = 1.00 g/cm^3), the flask and its contents weigh 346.3 g.
Write out a detailed mechanism for the formation of dibenzalacetone, using acetone + benzaldehyde in NaOH.
Urea (NH2)2CO is prepared by reacting ammonia with carbon dioxide. The byproduct is water. 637.2g of ammonia are reacted with 787.3 g of carbon dioxide. Which of the two reactant is a limiting reactant
write a balance equation for the formation of C4H10O(i) from its elements (c) By using the information in this problem and data in Table 5.3, calculate ?H°f for diethyl ether
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