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How would the absorbance of the standard solution have been affected if 0.00050 M NaSCN had been used in place of 0.00040 M? if it changes, calculate the new absorbance based on your values.
a) when 34.0g of NH3 reacts with 96.0g of O2 what is the partial pressure of NO in the sealed container?
Nitrate ion (NO2)^(-1) can be analyzed by creating an acidic solution of nitrite ion and adding excess iodide (I)^(-1) ions creating NO and I2. The I2 combines with excess (I)^(-1) to create (I3)^(-1).
If the temperature of 150.0g of water increased from 23.3C to 44.8C, how much heat was absorbed.
a sample of ammonia gas at 1.2 atm compressess from 500 ml to 250 ml. if the temerature remains constant, what is the new pressure of the gas? what formulas were used?
What is the most important type of intermolecular attractive force that operate in each
by titration it is found that 27.5 ml of 0.155 m naoh aq are required to neutralize 25.0 ml of hcl aq. calculate the
What is the pH of the resulting solution if 50 mL of this solution is diluted to 1000 mL Kb = 0.00036.
When 1 liter of nitrogen gas reacts with 3 liters of hydrogen gas at constant temperature and pressure, how many liters of ammonia gas will be produced?
For 2.25 moles of an ideal gas, Pext=P=200x10^3 Pa. The temperature is changed from 122 C to 28.5C and Cv=3R/2. Calculate the q, w, delta U and delta H for an isochloric process.
Describe and explain the possible effect on your results of the following experimental errors or variations. In each case specify the component(s) whose percentage(s) would be too high or too low.
Briefly comment on the effect of solution concentration on cell potential. Note that E knot is measured using 1M solutions,
How many carbon atoms are in 2.6 μg of graphite (pure carbon)?
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