astukake
Nov 5, 2011, 08:26 PM
a) What is the concentration of HCl if it takes 12.0 drops of 1.0M NaOH to nuetralize 8 drops of HCl. The 30 drops of the acid dropper weighed 1.500g and 30 drops of the base dropper weighed 1. 250 grams.
b) Calculate the percent of calcium carbonate in the eggshell from the following data. 0.050 grams of eggshell is dissolved in 25 drops of 2.5 M HCl. After 10 min, it takes 38 drops of 1.0 M NaOH to reach the end point. Assume the drop volume is 0.04ml. The molar mass of CaCO3 is 10 g/mol.
c) Picture the interactions between Na OH and H20. Be able to draw picutres. I tried them all. But especially c, I am struggling. Please be specific about c. about the type of bonds and stuff. Thank you so much.
b) Calculate the percent of calcium carbonate in the eggshell from the following data. 0.050 grams of eggshell is dissolved in 25 drops of 2.5 M HCl. After 10 min, it takes 38 drops of 1.0 M NaOH to reach the end point. Assume the drop volume is 0.04ml. The molar mass of CaCO3 is 10 g/mol.
c) Picture the interactions between Na OH and H20. Be able to draw picutres. I tried them all. But especially c, I am struggling. Please be specific about c. about the type of bonds and stuff. Thank you so much.