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The density of aluminum is 2.702g/cm3. What is the final liquid level of water if 32.04g of aluminum is dropped into a graduated cylinder containing 15.90mL of water?
How would the results for atomic weight have differed if the hot water was never brought to a boil?
Calculate the pH of 0.515 L of a 0.210 M NH_4Cl and 0.210 M NH_3 buffer before and after the addition of the following substances. Assume that the volume remains constant.
What is so good about supercritical CO2? Wouldnt its widespread use contribute to climate change?
calculate the heat energy released when 15.1g of liquid mercury at 25 degrees C is converted to solid mercury at its melting point
hydrobromic acid + Aluminum hydroxide -> water + aluminum bromide was double displacement but i got it wrong. What type of reaction is this?
To separate the proteins, you need a separation of at least 1.5 cm between the boundary layers associated with each protein. Using your answer in part b), will it be possible to separate the proteins by centrifugation
hydrogen is produced commercially by the reaction of methane with steam.ch4g h2og cog 3 h2ga calculate deltahdeg and
A 15.0% (w/w) NiCl2 (129.61 g/mol) solution has a density of 1.149 g/mL. Calculate the grams of NiCl2 contained in each liter of this solution
Identify one acid-base conjugate pair. What is the conjugate base of the HNO2 acid
What is the bond order of a molecule with 10 valence electrons 12valence electrons,13 valece electrons,14 valence electrons
What mass of calcium can be produced by this process if a current of 6200 {\rm A} is applied for 35 {\rm h}? Assume that the electrolytic cell is 69 % efficient. also What is the minimum voltage needed to cause the electrolysis
What Mass of K2CO3 must you add to 125 grams of water to prepare a 0.200m K2CO3? What is the mole fraction of K2CO3 in the resulting solution?
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