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Calcium chloride (CaCl2; very soluble) has been sold as a more effective de-icer than NaCl to spread on icy sidewalks. What would be the ionic strength of a solution that was 0.031 M CaCl2?
CaCl2 (s) Ca2+ (aq) + 2 Cl- (aq)
Determine the Kelvin temperature required for 0.0470mol of gas to fill a balloon to 1.20L under 0.988atm pressure.
Vitamin B12, also known as cobalamin, has the molecular formula C63H88N14PO14Co. What mass of CO2 and H20 would be produced during the combustion analysis
For H3PO4, a tripotic acid, Ka1 = 7.1 × 10-3, Ka2 = 6.3 × 10-8, and Ka3 = 4.5 × 10-13. What is the pH of a solution which contains 0.200 mol of K2HPO4 and 0.300 mol of Na3PO4 per liter of solution?
Calculate the mass in grams of iodine (I2) that will react completely with 29.1 g of aluminum (Al) to form aluminum iodide (AlI3).
What quantity of heat is required to melt 500. g of ice and heat the water to steam at 100. oC? What quantity of heat is required to melt 500. g of ice and heat the water to steam at 100. oC?
Calculate the heat transferred, q. Is water relevant in finding the heat transferred since it is in mL and not in grams?
Benkart's Tie Store has fixed costs of $180,000. Tires sell for $75 each and have a unit variable cost of $30. What is Benkart's break-even point in units?
The minimum energy required to break an oxygen-oxygen bond in ozone (O3) is 387 kJ/mole. What is the longest wavelength of light
How many moles of Cr(OH)3 will dissolve in 1.00 L of a solution with a pH of 4.85. (Assume the pH does not change as the Cr(OH)3 is placed in the water.) (Ksp for Cr(OH)3 is 6.7 x 10-31)
What will be the molarity of the resulting solutions made by mixing 140 mL of 3.2 M H3PO4 with 590 mL H2O?
What is the correct method for determining how many moles of calcium oxide are produced in the reaction of 10.g calcium with excess oxygen?
You have samples of approximately 8mL solution with ph ranging from 4 to 10. Calculate the volume of 1M HCIO4 needed to lower the ph to 2.5.
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