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A 290ml flask contains pure helium at a pressure of 756torr . A second flask with a volume of 480ml contains pure argon at a pressure of 713torr .If the two flasks are connected through a stopcock and the stopcock is opened, what is the total pressure?
A mass of 95 g of ice at 0C is combined with 105g of water at 25 C the final temperature of the mixture is 0 C what mass of ice melts. (heat of fusion=333J/g specific heat capacities ice=2.09, liquid water =4.184)
Express the concentration of a 0.0850 M aqueous solution of fluoride, F-, in mass percentage and in parts per million. Assume the density of the solution is 1.00 g/mL.
Based on what you have learned about intermolecular forces, would you say that matter is fundamentally attracted or repulsed
how many grams of malonic acid would be needed to make 50.0 milliliters 0.0500 l of 0.200 m malonic acid?the formula
A 25.00-mL sample of an unknown H3PO4 solution is titrated with a 0.100 M NaOH solution. The equivalence point is reached when 52.58 mL of NaOH solution is added. What is the concentration of the unknown H3PO4 solution? The neutralization reaction..
Standard reduction potentials are given on the next page. (a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the pH in the Pt | H+ | H2 half-cell (c) What is the value of the equilibrium constant for..
What is the overall mass-transfer coefficient for oxygen (O2) from the atmosphere to the river? (b)Which part of the transfer mechanism controls the overall rate
This experiment focused on a carbonyl group converted to an imine and then to an amine. Explain what spectroscopic techniques you could use to identify the progress of this reaction
Which carboxyl group is more acidic in 3-chlorohexanedioic acid? The 2 carboxyl groups in 3-chlorohexanedioic acid are not equivalent and have different dissociation constants
The ion is stabilized due to the delocalization of the positive charge to the aromatic ring. Draw resonance structures that indicate the stability of this ion.
Why is the catalyst Copper Chloride faster at the decomposition of hydrogen peroxide than Postassium Iodide and Lead Oxide
Carry out a calculation that would show only Al(OH)3, but not Mg(OH)2, will form precipitate in a solution that contain 0.10 M Al3+ and 0.10 M Mg2+ if the solution is buffered at pH = 9.00.
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