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For the reaction below, which equation represents the rate of reaction? 6CH2O + 4NH3 (CH2)6N4 + 6H2O
An excess of NaOH is treated with 1.1L of dry HCl gas (measured at STP). What is the weight of NaCl formed?
Quinine (C20H24N2O2) is the most important alkaloid derived from cinchona bark. It is used as an antimalarial drug.
give explanation why it is not practical to evaluate the solubility of the two salts ax and by2 by simply comparing the
Write the rate expression for the reaction C) Calculate k for the reaction D) When [S2O8 2-] = 0.105 M and [I-] = 0.0875 M, what is the rate of the reaction at the temperature of the experiment?
the density of titanium is 7.51 g/cm^3. What is the volume (in cubic inches) of 3.5 lb of titanium?
One of the most common causes of inaccurate melting points is too rapid heating of the melting point bath. Under these circumstance
Calculate the binding energy E B of the helium nucleus 4 /2 He .Express your answer in millions of electron volts to four significant figures.
during the late 1800s hard rock miners replaced candles with carbide lamps for work in mine shafts. the lamps worked by
Calculate the pH of a buffer that contains 0.060M ammonium chloride
A student performs a series of calorimetry experiments. She determines the calorimeter constant (Ccal) for her coffee cup calorimeter. She pours a 50.0 mL sample of water at 345 K into the calorimeter containing a 50.0 mL sample of water at 298 K.
A student added calcium ion, ca2+ to an aqueous solution and observed formation of a precipitate. Addition of HNO3 had no effect on the precipitate. What anion wa present in the original solution? Explain your answer
an equilibrium mixture of h2 i2 and hi at 458 contains 0.108 i2 0.108 h2 and 0.747 hi in a 5.00- vessel what is the
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