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Explain is there a relationship between the presence or absence of solution color as well as the ionic radius of the metal ion?
compare in your mind 3 different liquids pure ethanol a 50 ethanolwater mixture and a 50 ethanolmethanol mixture. rank
15mL of radiator liquid (water + ethylene glycol) from a car has a mass of 15.69g. Is the the density of ethylene glycol greater or less than that of water
For the hypothetical first order reaction A yields products, k= 0.0206 s-1. if the initial concentration of A is 0.165 M, how long would it take for A to be 88.7% consumed
Determine the enthalpy change when 23.5 g of carbon is reacted with oxygen according to the reaction C(s) + O2(g) CO2(g) delta H = -394 kJ/mol
Assume there is no change in the relative volume of the individual metals as they are mixed to form the alloy. Calculate the mass percentage of nickel and aluminum in the alloy as well as the alloy's density.
A beaker with 130 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.20 mL of a 0.370 M HCl solution to the beaker. How much will the pH..
Compute the partial pressure of Ar(g) that is needed to achieve this. You may assume that delta(vap)H for water is independent of temperature and pressure
How many moles and how many equivalent of H30+ are present in 50ml of a 0.3N solution of H2SO4
q1. which type of intermolecular attractive force operates between a. all molecules b. polar molecules c the hydrogen
A student wants to make a pH 4.0 buffer solution. She decides to use a buffer made from formic acid and sodium formate (NaCOOH).
How will the melting point of your semicarbazone derivative be affected if the derivative is not dry enough
Expalin how you would prepare 500.0mL of a solution that is 0.100 M of H2SO4 from concentrated 18.0 M of H2SO4, which is a liquid with density 1.82g/mL
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