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A buffer is made by adding 0.24 mole acetic acid and 0.16 mole sodium acetate in 1L water.
a. What is the ph of the buffer? pKa=4.2
b. If 15ml of 8M NaOH solution is added to the buffer, what is the pH?
Suppose that for the couple in Fig. 3.26, you were told that the girl's mass was three-fourths that of the boy. What would be the girl's velocity in this case?
Calculate the percent ionization and hydrogen ion concentration in a solution containing 0.05 M hypochiorous acid (HOCI), which has an ionization constant at 25°C of 2.9 x 10-8.
calculate the change in molar gibbs energy of carbon dioxide treated as a perfect gas at 200 c when its pressure is
Gasoline is produced from crude oil,a nonrenewable resource. Ethanol is mixed with gasoline to produced a fuel called gasohol. Calculate the mass (in grams) of water produced when 66.89 g of ethanol is burned in 57.71 g of oxygen.
if the tank is heated, what is the maximum pressure that will be attained in the tank before the plug will melt and release gas?
Give the structure of the major and minor organic products formed when HBr reactw with (E)-4,4-dimethyl-2-pentene in the presence of peroxides.
Calculate the density of a solution if the following data has been recorded during a lab experiment
What are the volumes of gases produced in the reaction of dehydration of 500 microliters of 2-butanol and 250 microliters of conc. sulfuric acid if the molar ration of gases (1-butene:trans-2-butene:cis-2-butene) is 1:3:2
Question 1: Using your results for Experiment 3, calculate the heat lost by the hot water. Heat must be expressed in kilojoules (kJ).
water boils at 63.7 Celsius. What weight of ehtyl iodide would be carried over by 1g of steam during steam distillation?
a solution of 2.50g of a compound having the empirical formula c6h5p in 25.0 g of benzene is observed to freeze at
Cynthia lives 5.0 miles from grossmont college. Assuming that there are no traffic signals , how long would it take in minutes her to reach school if she drives35 MPH. If cynthia oversleeps and drives 50 MPH how long will it take?
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