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What is the average mass(in grams) of a flourine atom if Flourine has an atomic weight of 18.998 amu?
Calculate how many mL of 0.100 M NaOH are needed to neutralize completely 49.0 mL of 0.0800 M H2SO4 (forming Na2SO4 and water).
4-chloro-1,4-dimethylhexanol is treated with heat, please show products
Consider 1.00 L of air in a patient's lungs at 37.0 C and 1.00 atm pressure. What volume would this air occupy if it were at 25.0°C under a pressure of 5.00* 10-2 atm (a typical pressure in a compressed air cylinder)?
Suppose a 500 mL solution contains 0.50 millimoles of Co(NO3)2, 100.0 millimoles of NH3, and 175.0 millimoles of ethylenediamine. What is the concentration of Co 2+ (aq) in the solution?
To find the pKa of X-281, you prepare a 0.087M test solution of X-281. The pH of the solution is determined to be 2.40. What is the pKa of X-281?
A solution of 120 mL of 0.150 M KOH is mixed with a solution of 280 mL of 0.250 M NiSO4. How many grams of the precipitate can be formed?
enzyme responsible for part of the signaling cascade that leads to replenishment of the stomach lining is inhibited by these drugs. How does it differ from the COX-2 enzyme responsible for inflammation?
Write the balanced molecular, ionic and net ionic equations for the reaction between magnesium and cobalt(II) sulfate. (b) What is oxidized and what is reduced in the reaction?
Lead (2) nitrate reacts with potassium iodide to produce lead (2) iodide and potassium nitrate. if 1.23mg of lead nitrate are consumed, what is the mass of the potassium nitrate produced?
Would Br2 react faster with a tropylium cation or cyclooctatetrene? Not sure if the aromaticity of the cation comes into play here. Please justify your reasoning
Determine why would the P have been higher or lower if the H 2 O had been at pH 5?
What volume of this solution is required to make 1.50 L of 2.75 mol/L NH3(aq)? Give your answer in millilitres, accurate to three significant figures.
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