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If the cuvettes are not wiped clean in an experiment, fingerprint smudges may be present during analysis.
a. Explain how this error would affect the absorbance readings for blue dye in the analysis?
b. Would the value for molarity of the dye in the drink solutions be too high, too low, or unaffected by this error? Explain.
2.0 moles of a gas was collected in the lab at a temperature of 1.1 degrees C and a pressure of 9.5 atm. What volume will the gas occupy under these conditions.
40.0L of H2 at 850mmHg and 75.5 degrees celsius is reacted with an excess of I2. What mass of HI is formed? H2(g) + I2(g)--> 2HI(g)
A metallic object to be plated in copper is placed in a solution of CuSO4. What mass of copper will be deposited on the object if a current of 0.22 amps flows through the cell for 1.5 hours
how many joules of heat are required to heat 143 g of aluminum from 55.0 oc to
At 2000°C the equilibrium constant for the reaction is Kc = 2.4 x 10^3. , 2 NO(g)-> N2(g) + O2(g) If the initial concentration of NO is 0.100 M, what are the equilibrium concentrations of NO, N2, and O2?
Look up the chemical compound that is methiocarb and describe briefly its chemistry and its pharmacology and what effects does Methiocarb have on the mammalian body? What other signs/symptoms would Jimmy display? Can this chemical cause death? Why?
Do the three staggered/eclipsed conformations of butane have the same ENERGY?
Debye-Huckel limiting law to calculate the activity coefficients. Calculate the percentage difference between the a) and b) solubility products for each
what volume of vinegar would be needed to react with 18.00 grams of baking soda? Assume the density of vinegar is the same as that of water.
Calculate the pH during the titration of 20.0 mL of 0.25 M HBr with 0.25 M KOH after 19.90 mL of the base have been added.
one mole of nitrogen gas n2 is confined within a cylinder at the temperature of twenty five degree celsius and heated
The rate would decrease because the bromide ion is a weaker base than the iodide ion. C) The potential change cannot be predicted.
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