Homework Statement
If .0200L of .100M nitrous acid is titrated using .200M NaOH solution, what will the pH be at equivalence?
Homework Equations
The Attempt at a Solution
I figured out that the volume of NaOH at equivalence is .01L, however I do not know what to do after that...
Homework Statement
How can one model the vertical and horizontal motion of a swing? The maximum height was 258 cm, the lowest 38cm and the horizontal movements went from 2.39m on the left to 2.44m on the right. The period was approx 2.5793 seconds.
(The data was hand collected, so it is not...
Homework Statement
The statue of libery is 46 meters tall and stands on a plinth 47 meters tall.
How far back should a 2m tall person stand back to obtain the largest viewing angle? There is 66m of land in front of the statue, will the position be within these 66 meters?
Homework...
Homework Statement
In Triangle ABC, tan A=3/4, tan B=1, and a=10. Find what b equals.
Homework Equations
You can use sina/A=sinb/B
The Attempt at a Solution
This problem is really easy using inv tangent functions and what not, but my teacher said we should be able to get it without...
Homework Statement
I have five questions on some review problems for our final I was given and I have forgotten how to do them. They are:
1) 3(sqrt(5-x)+1)-7=sqrt(5-x)+6
2) 2(64^x-2)=8(.25)^x+1
3) x-2-(4-x^2/x+2)=3x+7
4)-2A^-2+A^(-5/2)sqrtA+a^(-1/2)*a^(-3/2)
5)(3x^2y^7z^-2/12xy^8z^5)^2...