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You heat a 454 gram aluminum pot to cook some mac & cheese. If the temperaure changes from 22.0oC to 275oC and the specific heat of aluminum is .900 J/goC, how much energy, in J, was required?
4.5 L of Mg(OH)2 solution was titrated with 5.03 mL of 0.200 M HCl. Calculate the the molarity of Mg(OH)2 solution and the ksp.
The compound BeBr2 has a total of how many shared electrons and how many non-bonded electrons?
Write a chemical equation for the reaction of an aqueous solution of sodium stearate with each of the following
Using the data given below, calculate the residence times of the solutes in seawater. The amount of water flowing from rivers to oceans = 3.74 x 10^19 g yr-1 , and the amount of water in oceans = 1.35 x 10^24. What is the residence times of these ..
Molecular compound Y2(g), has a bond energy of 750 kJ/mol, and the molecular compound XY(g) has a bond energy of 1500 kJ/mol. Using bond-energy information, calculate ?H for the following reaction:
If 329mL of hydrogen gas is collected over water at 25 Celcius at a total pressure of 748mm Hg , how many grams of { Zn reacted
basketball with a volume of 3.50 Liters is left in a car when the temperature is 298 K. What will the volume of the ball be as the car heats up to 305 K during the day?
The head of a strike anywhere match contains tetraphosphorous trisulfide, P4 S3. In an expriment, a student burned this compound in an excess of oxygen and found that it evolved 3677 KJ of hea per mole of P4S3 at a constant pressure of 1 atm.
the volume of a sample of oxygen gas collected over water is 258 mL at 27 degrees C and 620.0 torr. Calculate the volume in milliliters of dry oxygen gas at STP. (the vapor pressure of water at 27 degrees C is 26.7 torr.)
Sodium Chloride (NaCl), Please express answer in grams and breakdown of how answer was derived
The solubility of solute in a solvent depends on various parameters, such as temperature, pressure, the nature of the solute, and the nature of the solvent. Considering these parameters, identify the statements that are correct for the solubility ..
Calculate the partial pressure of each gas and the total pressure after the valve between the flasks is opened. P(He) in mmHg P(Ar) in mm Hg Ptotal in mm Hg
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