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Aluminum is a lightweight metal (density=2.70 g/cm^3) used in aircraft construction, beverage cans, and foils. a) What is its density in kg/m^3? b) How many pounds would an aluminum clock measuring 1.0 m x 2.0 m x 1.5 m weigh?
What is the pH of a solution to which 35.0 ml of .20 M HCl and 50.0 ml of .42M NaOH have been combined
What is Ka? The answer is 8.1E-10. Hope you can help
Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts.
If 3.0 ml of distilled water is added to 2.0 ml of 0.35 M CoCl2 solution , what is the concentration of the resulting solutions?
To determine its identity, 0.150g of the unknown was dissolved using 10.00ml, 0.531 M HCl. Three drops of methyl orange was added to the solution and then titrated with 0.2440 M NaOH.
What is the total mass of each of these elements in the Earth's crust (1 t = 1000kg)?
Calculate the pressure when temperature is increased to 383 0C and volume of container keeps constant?
What volume of a 35.0 mM solution of propionic acid is required to supply
A flask contains 0.260 mol of liquid bromine, Br_2. Determine the number of bromine molecules present in the flask.
A 0.140-mole quantity of NiCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Ni2 ions at equilibrium? Assume the formation constant* of Ni(NH3)62 is 5.5 × 108.
Cyclopropane contains 85.7%C and 14.3% H by mass. At 50C and .984 atm pressure, 1.56g cyclopropane has a volume of 1L. What is the molecular formula?
At constant temperature and volume, 3.8?10-3 mol of helium is added to a 1.0 L sample of xenon at 0.081 atm and 325 K. What is the total pressure of the gas mixture
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