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You added 0.559g Zn metal to a solution containing 1.543g Cu(NO3)2 to reduce any copper ions present. What mass of copper was reduced in this process?
Microwave ovens heat food by creating microwave electromagnetic radiation that is absorbed by water molecules in the food. Any material that does not have water in it will not absorb the radiation and will not get hot.
its clay concentration and the CEC of the clay be able to estimate the draction of CEC due to organic matter in the sample
What volume of 0.25 M HCl solutions must be diluted to prepare 1.00 LK of 0.040 M HCl?
If 37.0 mL lead(II) nitrate solution reacts completely with excess sodium iodide solution to yield 0.700 g precipitate, what is the molarity of lead(II) ion in the original solution?
How many grams of dipotassium phthalate (242.3 g/mol) must be added to 700 mL of 0.175 M potassium hydrogen phthalate to give a buffer of pH 6.00?
A) Calculate the molar solubility of Ni(OH)2 when buffered at pH=8.0 B) Calculate the molar solubility of Ni(OH)2 when buffered at pH=10.0 C)
Calculate the pressure that must be applied in order to increase its density by 0.08 percent.
A biochemical engineer isolates a bacterial gene fragment and dissolves a 19.6 mg sample of the material in enough water to make 37.9 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C.
In a typical mass spectrum, a smaller signal is observed at a mass 1 amu higher than the molecular ion peak. Why? A) Due to small impurities in the sample
Explain why it is preferable to take the geometric mean rather than the arithmetic mean when defining mean activity
Human and chameleon insulins have the same amino acid sequence, with the exception of six amino acids, as shown below. Is the pI of human insulin lower, higher, or the same as that of chameleon insulin?
When heated to 350 at 0.950 , ammonium nitrate decomposes to produce nitrogen, water, and oxygen gases.
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