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Explain what is the freezing point of 50 percent by weight solution of ethylene glycol, C12H6O2 in water (anitfreeze) Mol. Wt. of ethylene glycol is 62.0 g/mol. State what 50 percent ethylene glycol means to get the masses to use
Describe the procedure for preparation of 250 cublic cm of aqueous sulphamic acid of accurately known concentration.
the crucible is handled with oily fingers after its mass measurement but before the 3g sample of the hydrated salt is
Does molecular size cause negative or positive deviations from the PV/RT ratio of an ideal gas? Use data from table 5.4 to rank Cl2, H2, and O2 in order of increasing magnitude of these deviations.
With aqueous H2CrO4, compound A was oxidized to an optically inactive dicarboxylic acid C, C6H10O4. Give structures for compounds A, B, and C; do not specify stereochemistry.
a litre of solution containing 0.1 m of ch3cooh and 0.1 m of ch3coona provides a buffer of ph 4.74 . calculate the ph
Construct a graph of the Maxewell distribution of speeds (equation 20.4 in Atkins Book) for Cl2 at 100 K and 298 K using excel or mathematica.
Explain the primary, secondary, tertiary and quarternary structure of Hemoglobin. Also explain the function of all parts of the hemoglobin molecule. Two outside references should be used. Name these references.
pH = log[H3O+] , pH + pOH = 14, [H3O+] * [OH-] = 1.0 X 10^-14, pH = -log(0.001) = 3 Could you show me a few of the steps between line one and two in both of these conclusions?
A buffer is to be made with a pH of 8.50 by adding hydrobromic acid to one of the following bases. Which base is the best choice for making this buffer
What is the rate law for step 2 of this reaction? Express your answer in standard MasteringChemistry notation. For example, if the rate law is type k*[A]*[C]^3.
Give the systematic names for the formulas, or the formulas for the names. (Type your answer using the format copper(II) chloride for CuCl2, and using the format CO2 for CO2. Omit the centered dot for hydrates.) (a) NaNO2 (b) tin(IV) chloride (c) ..
How much heat in is evolved or absorbed in the reaction of 2.28 grams of sodium ( Na) with water( H 2 O), express your answer in kilocalories?
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