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Explain with what volume of 5.0 M HF will 7.4 g of calcium hydroxide react completely, according to the reaction
2 HF +Ca(OH)2 ® CaF2 +2 H2O 20mL
50mL
30mL
40mL
1.0 x102mL
Assume that an air conditioner consumes 1.50 X 103 W of electrical power, and that it can be idealized as a reversible Carnot refrigerator. If the coefficient of performance of this device is 2.50, how much heat can be extracted from the house in ..
Can someone please explain to me how to identify the ion when you are given its last electron with the following quantum numbers?
Show the full mechanism of bromination for both 2,4-nitrophenol
Explain how many kilograms of chlorine are in 25 kg of each of the following chlorofluorocarbons (CFCs)
At 22 degrees celsius the vapor pressure of pure acetone, C3H6O is 189.2 torr and of pure diethyl ether C4H10O is 451.8 torr. calculate the mole fraction of acetone
What is the weight % of Cl in the original sample?
What is the name of the compound when you say Sodium Bromide plus Sodium Sulfide. Also, please write the formulas for each.
For the reaction PCl5 PCl3 + Cl2, Kc= 33.7. Calculate the reaction quotient Q to determine which direction the reaction will shift toward when 0.00650 M PCl5, 1.04 M PCl3 and 0.0500 M Cl2 are mixed together in a 1.0 L flask
A solution is known to be 23 percent by volume rubbing alcohol (isporpanol). How many mililiters of isopropanol would be in 250 mL of solution. 25 percent
Given that the most common mineral in limestone is calcium carbonate, describe how these limestone objects are corroded by the sulfuric acid in polluted air. What chemical reaction is involved here?
which of the following statements is true of the titration of a weak acid by a strong base such as sodium hydroxide. At the equivalence point, the pH is less than 7. the moles of acid are greater than the moles of base at the equivalence point
explain how society depends on the accuracy and precision of measurements for products sold by the retail industry such
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