Chemistry Help?!?

Question

1) A 0.0106L sample of sulfuric acid from an automobile battery requires 0.0348L of 1.95 M sodium hydroxide solution for complete neutralization. What is the molarity of the sulfuric acid? The reaction is shown below.

H2SO4(aq) + 2 NaOH(aq)--->2 H2O(l) + Na2SO4(aq)


2) Calculate the sodium ion concentration when 0.060L of 9.0M sodium carbonate is added to 0.030L of 1.0M sodium bicarbonate.
3) A 0.230L sample of a 0.255M CaCl2 solution is left on a hot plate overnight. The following morning, the solution is 1.10M. What volume of water ( in mL) evaporated from the 0.255M CaCl2 solution
4) Two tuning forks with frequencies of 256 Hz and 512 Hz are struck. Which of the sounds will move faster through the air?
5) What is the resultant displacement at a position where destructive interference is complete?
6) As a result of a distant explosion, an observer first senses a ground tremor, then hears the explosion. What accounts for this time lag?

7) By listening to a band or an orchestra, how can you determine that the speed of sound is the same for all frequencies?
8) A sound wave traveling at 343 m/s is emitted by the foghorn of a tugboat. An echo is heard 2.70 seconds later. How far away (in meters) is the reflecting object?
9) You dip your finger into a pan of water four times each second, producing waves with crests that are separated by 0.20 m.
Determine the frequency of these water waves.
a) What is the period of the water waves?
b) Find the speed of the waves.

Answer 1

Try this formula:

Molarity 1 x Volume 1 = Molarity 2 x Volume 2

Answer 2

ok...so what and what is mixed in what overnight?????? sorry...but im not in chemistry class yet.