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Answer to Question #75168 in General Chemistry for Chloe Lozano
Question #75168
How many grams of CaCl2 are needed to make a solution with a concentration of 3.0 m from 2.25 kg of water?
A. 7.5 x 102 g CaCl2
B. 7.50 kg CaCl2
C. 7.50 × 10–2 kg CaCl2
D. All of the Above
E. None of the Above
A. 7.5 x 102 g CaCl2
B. 7.50 kg CaCl2
C. 7.50 × 10–2 kg CaCl2
D. All of the Above
E. None of the Above
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Dear visitor, please use panel for new questions.
A balloon contains 46.3 L of Helium at 42 oC, and 2.01 atm is released into the air. At a certain altitude, the temperature falls to 21 oC, and the pressure falls to 0.25 atm. What is the volume of the balloon under these conditions? A. 3.5 L B. 35.0 L C. 347.5 L D. 3475.0 L E. None of the Above
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