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A block of metal has a width of 3.2 , a length of 17.1 , and height of 4.2 . Its mass is 1.5 . Calculate the density of the metal.
what is the speed of a proton in a linear accelerator has a de Broglie wavelength of 159 rm pm
calculate the pH of pure water at 298 K and 403 K. Recall that pH is defined in terms of activity not concentration.
A solution containing 100g of an unknown substance and 900g of water. The solution has a Freezing Point of -3.33*C. What is the molar mass of the substance?
What would be the concentration of oxygen (in molarity units) if the gas had remained in the solution? C. Based on the above data, what is the rate of the reaction (in units of solution molarity per second)?
A tank at is filled with of sulfur hexafluoride gas and of carbon monoxide gas. You can assume both gases behave as ideal gases under these conditions.
Calculate the molality of a sucrose (C12H22O11) solution containing 14.3 g of sucrose in 676 g of water.
reacted with 0.0040 mol NaOH (very strong base) and then brought up to a volume of 1.0 liter with water. What is the pH of the resulting solution?
If 50.0 mL of 0.150 M CaCl2 is added to 50.0 mL of 0.100 M AgNO3, what is the mass in grams of AgCl precipitate?
what is the differences between partial and full method validation? under what circumstances are they being carried out?
What happened when 6.0M HCl was added to the contents of the tube in 7a above?
A solution which contains 41.0 g of an unknown molecular compound in 312 g of water freezes at -2.23°C. What is the molar mass of the unknown?
What is the percentage composition of a compound consisting of carbon and hydrogen if 58g of the compound has only 10g of hydrogen.
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