What types of volumetric flasks would you need to: 1. Place 25.00 mL of a 0.1059 M NaCl solution into an Erlenmeyer flask
2. Add 50 mL of deionized water to an Erlenmeyer flask containing primary standard Na₂CO₃ to be titrated with HCl solution
3. Measure the volume of 0.1003 M NaOH required to reach the end point in a titration involving 25.00 mL of0.09975 M HCl

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g