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The addition of one crystal of NaClO3 to a solution of this salt causes more crystals to precipitate from solution. If there is no temperature change, the resulting solution is
The maximum pressure that can be developed for a certain fluid power cylinder is 15.0 MPa. Compute the required diameter for the piston if the cylinder must exert a force of 30 kN.
When the flask was re-filled with an unknown gas, the same number of moles leaked out in 2.84 hours. Identify the unkown gas.
Complete combustion of a 0.360g sample of glucose produced 0.528g carbon dioxide and 0.216g of water. Find the empirical formula for glucose.
assume that a gold atom is shaped like a sphere. an atom of gold has a radius of 156 pm and a mass of 197 amu.
sample of sodium reacts with 0.497 kg of chlorine forming 819 g of sodium chloride, what mass of sodium reacted
A volume of 95.0 ml of H2O is initially at room temperature (22.0 C). A chilled steel rod at 2.00 C is placed in the water. If the final temperature of the system is 21.1 C .
for the equation below identify the substance oxidized the substance reduced the oxidizing and reducing agent and write
Calculate the pH after 0.020 mol NaOH is added to 1.00 L of a solution which is 0.100 M NH2OH and 0.100 M HONH3Cl.
Calculate the mass of KI in grams required to prepare 5.00x10^ 2mL of 3.2 M solution.
Suppose you have a sample of sodium weighing 11.62 g. How many atoms of sodium are present in the sample?
By what percentage does the solubility of lead iodide decrease when dissolved in a solution of 0.02 M ammonium iodide
Treatment of (S)-( )-5-methyl-2-cyclohexenone with lithium dimethylcuprate gives, after protonolysis, a good yield of a mixture containing mostly a dextrorotatory ketone A and a trace of an optically inactive isomer B
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