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An ascorbic acid supplement was analyzed by titrating a 0.1000g sample dissolved in water with 0.0200M NaOH. A volume of 15.20 mL of the base was required to completely neutralized the ascorbic acid. What was the percentage by mass of ascorbic acid in the sample?
2I2 + N2H4 → 4HI + N2 a. How many grams of I2 are needed to react with 36.7 g of N2H4?
To ensure the impurity does not exceed this amount, how much water must be added to the solution before the temperature is dropped if the initial solution weighed 500 kg? How much Na2S2O2 will be generated in this process?
Draw the VSEPR diagram and classify the shape of the molecule for F2O
describe the change in conductivity as the concentration of the NaCl solution was increased by the addition of NaCl drops
If 60.0 g of H3PO4 is dissolved in enough water to form 175 mL of solution, what is the molarity (M) of the solution?
What is the heat of combustion per gram of butane?
When you heated the hydrated compound this process starts slowly at first find out the reason behind this and compute k for this acid if A 0.020 M solution of weak acid HA is 0.60% ionized.
Using a solution of KMnO 4 has a percent transmittance of 27.3 percent when observed in a 1.15-cm cell at a wavelength of 525 nm. Compute the absorbance of this solution.
Which element has the most atoms? 10 grams of neon, 16 grams of oxygen, 32 grams of selenium,
Calculate the deltaG for the hydrolysis of ATP in liver, muscle, and brain cells using the following table. In which cell type is the free energy of ATP hydrolysis more negative?
a sample of nitrogen gas occupies 1.55 l at 27.0c and 1.00atm. what will be the volume be at -100.0 C and the same pressure
where n increases from zero to fourteen over the series from Lanthanum to Lutetium Select the two ions that have 5 unpaired spins. which 2 would have it?
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