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In an experiment, a student dissolves 32.6g of CaF2 in 0.98kg of solvent. What is the molality of this solution? Show your work.
What is the change in enthalpy for the neutralization. Write the net ionic equation for this neutralization reaction, including the states of matter (i.e. (aq)) for the reactants and products.
calculate the total heat (in J) needed to convert 20.0g ice at -8.00 c to liquid water at 0.600c? melting point at 1 atm
Explain why the conjugate base of a strong acid can't react with water.
If the rate expression is first-order in SO2 and half-order in O2, calculate the value for k.
If you dissolve 4 aspirin tablets in a 340mL glass of water, what is the pH of the solution and the percent dissociation?
How many valence electrons does one molecule of aspartame have? What are the bond angle measurements of aspartame?
What are the boiling point and freezing point of a 2.47 m solution of naphthalene in benzene? (The boiling point and freezing point of benzene are 80.1°C and 5.5°C, respectively.
For the analyte with pka= 5.6 and 60/40 acetonitrile/water eluent composition what should be the pH of an aqueous portion of the mobile phase to ensure complete ionization
Find the probability that the sample mean is less than 15 minutes. (i.e. Find P[ D
How would increasing the molarity of the NaOH solution from 0.5M to 1.0M affect the number of drops required for the observed color change to occur
If 282.5 ml of SO2 is allowed to react with 165.3ml of O2 (both measured at 303K and 47.8mmHg ), what is the limiting reactant
pKa of a carboxylic acid group found on a molecule of DOM is 4.2 and pKa of An amino group found on a molecule of DOM is 9.3. Explain how pH influences the ability of these groups to bind to metals. Illustrate how well each of these groups would b..
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