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A 51.0 g sample of ethylene glycol, HOCH2CH2OH, is dissolved in 540.0 g of water. The vapor pressure of water at 32°C is 35.7 mm Hg. What is the vapor pressure of the water-ethylene glycol solution at 32°C? (ethylene glycol is nonvolatile.)
80.0 grams of diiodine pentoxide reacts with 28.0 grams of carbon monoxide. How many grams of I2 could be produced?
Converting Voltages, Convert the following voltages. Assume the silver-silver chloride and calomel reference electrodes are saturated with KCl, giving cell potentials of +0.197 V and +0.241, respectively.
If it takes 66.8 min for the concentration of a reactant to drop to 20.0% of its initial value in a first-order reaction, what is the rate constant for the reaction in the units min-1?
What is the millimolar concentration of dissolved oxygen for a lake or stream under the partial pressure of oxygen and a temperature of 12?
What is its speed in cm/sec? (b) How far in meters would it travel in 2.00 days? (c) If a snail weighs 2.00 grams, how many snails would it take to make a firkin at sea level?
What is the value of x in the formula for the hydrate? hint: remember that x represents the ratio of moles of H2O to moles of hydrate compound, and that moles of hydrate
solution requires 18.6 mL of 0.200 M NaOH to reach the end point of the titration, what is the molarity of the acetic acid solution? CH3COOH (aq) + NaOH(aq) CH3COONa (aq) + H2O(l)
The activation energy for a particular reaction is 95 kJ/mol. By what factor will the rate constant increase when the temperature is increased from 50 oC to 62 oC?
Historically, the solid residue that is left after the Dichloromethane -or methylene chloride (CH2Cl2 )solution is evaporated has a lower melting point that its literature value, due to impurities.
what is a good conductor at high temperature and a poor conductor at low temperature? YBa2Cu3O7 GaAs S Cu
What is the pH of a solution made by mixing 3.30 mL of 0.0045 molar Sr(OH)2 with 8.70 mL of 0.0011 molar Sr(OH)2 solution?
Calculate empirical formula of this compound & molecular formula and calculate the molality of solution of sulfuric acid?
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