1How would each of the following affect the accuracy of the calculated neutralizing power of antaid (too high, too low, no effect) explain
a)The actacid tablet was not cut exactly in half before weighing
b)The solution mixture of reacted antacid and excess HCL spattered out of the flask during boiling
2 Calculate the neutralizing powe of 1 gram of pure NaHCO3 (FW=84.02g/mol0
1) a) The actacid tablet was not cut exactly in half before weighing: If the actacid tablet was not cut exactly in half before weighing, it would likely result in an inaccurate measurement of the amount of antacid used. This would lead to an inaccurate calculation of the neutralizing power. If the tablet was cut too large, the calculated neutralizing power would be too high. On the other hand, if the tablet was cut too small, the calculated neutralizing power would be too low.
b) The solution mixture of reacted antacid and excess HCL spattered out of the flask during boiling: If the solution mixture of reacted antacid and excess HCl spattered out of the flask during boiling, it would result in the loss of some of the reactants. This would lead to an inaccurate calculation of the neutralizing power. The calculated neutralizing power would be lower than the actual value due to the loss of reactants.
2) To calculate the neutralizing power of 1 gram of pure NaHCO3 (sodium bicarbonate), you would need to determine the number of moles of NaHCO3 and convert it to molar mass. Here's how you do it:
Step 1: Convert the mass of NaHCO3 to moles
- The molar mass of NaHCO3 is 84.02 g/mol.
- Divide the given mass (1 gram) by the molar mass to get the number of moles.
- Example: 1 g / 84.02 g/mol = 0.0119 moles
Step 2: Calculate the neutralizing power
- The neutralizing power is a measure of the amount of acid that can be neutralized by a substance.
- For NaHCO3, each mole of NaHCO3 can neutralize 1 mole of HCl.
- So, the neutralizing power of 1 gram of NaHCO3 is equal to the number of moles calculated in Step 1.
- Example: The neutralizing power of 1 gram of NaHCO3 is 0.0119 moles.