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Carbon tetrachloride, CCl4, a common liquid compound, has a density of 1.58 g/cm3. If you place a piece of a plastic soda bottle (d = 1.37 g/cm3) and a piece of aluminum (d = 2.70 g/cm3) in liquid CCl4, will the plastic and aluminum float or sink?
How many moles of Al(OH)3 are produced when 50.0 g of KOH react completely in the following equation? AlCl3 + 3KOH = Al(OH)3 + 3KCl
A 50-lb weight hangs from a string. Find the tensions T1 at 50 degrees and T2 at 30 degrees in the string, and write these vectors in terms of the vectors i and j
Calculate ΔH and ΔStotal when two iron blocks each with mass of 1.00kg, one at 25'C and one at 250'C are placed in contact with each other in an isolated container.
In a 1.00 L flask, 3.40 atm of CO reacts with 2.60 atm of O2. Assuming that the temperature remains constant, what is the final pressure in the flask.
Gaseous oxygen is held in two separate containers at identical temperature and pressure. The volume of container A is 6.48 L and it contains 0.785 mol of the gas. The volume of container B id 5.78 L. How many moles of the gas are in container B
How do you make a supersaturated solution. How is this different than a "saturated" solution
When atoms of the hypothetical element X are placed together, they rapidly undergo reaction to form the X2 molecule: Would you predict that this reaction is exothermic or endothermic. Explain.
Consider a light-sensative reaction. What energy in joules per photon, is needed to drive the reaction if delta H of the reaction is equal to 793 kJ/mol. (Remember that there are Avogadro's number of photons per mole of photons.)
caffeine is a stimulant found in coffee and tea . a solution of caffeine in chloroform as a solvent has a concentration
where the temperature and pressure are 4oC and 3.0 atm, to the water's surface, where the temperature is 25oC and pressure is 0.95 atm. Calculate the final volume of the bubble if its initial volume was 2.1 mL
The solubility of lead (II) iodide is 0.064 g/ 100 mL at 20 deg C. what is the solubility product for lead (II) iodide
Problem- The molecular formulas of two compounds are given: C7H16 and C8H18. Are these two molecules isomers. Explain
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