An awful lot of homework.
GUYS, TOMORROW WEAR THE P.E. UNIFORM FOR BIO.
We have an activity regarding plant & animal hormones.
01. CHEM - Get the rate law.
BF3 + NH3 → F3BNH3
| Expt # | [BF3], M | [NH3], M | Initial Rate (M/s) |
| 1 | 0.250 | 0.250 | 0.2130 |
| 2 | 0.250 | 0.125 | 0.1065 |
| 3 | 0.200 | 0.100 | 0.0682 |
| 4 | 0.350 | 0.100 | 0.1193 |
| 5 | 0.175 | 0.100 | 0.0596 |
2NO2 → 2NO + O2
| Time | [NO2], M |
| 0.0 | 0.100 |
| 5.0 | 0.017 |
| 10.0 | 0.0090 |
| 15.0 | 0.0062 |
| 20.0 | 0.0042 |
02. JAVA
We have a make-up class tomorrow after SocSci, unfortunately ;_;
03. Math
LT on Wednesday
HW7 - Vance p.311
Write out the next 3 terms in each of the ff, and find the final term and sum of all terms
3.) 1/125, -1/25, 1/5, ... to 7 terms
4.) P(1+r), P(1+r)2, P(1+r)3,... to 10 terms
Three of the elements (first term (t1), last term (tn), ratio (r), number of terms (n), and sum of all terms (Sn) are given. Find the missing elements.
9.) r = 1/3, n = 5, Sn = 4/9
11.) t1 = -2, r = 2, tn =-64
14.) The second term of a geometric progression is 5/4 and its 4th term is 1/5. Find its third term.
15) In the geom progression 18, -12, 8, ..., which term is 512/729?
17) Insert three geometric means between 27/8 and 2/3.
18) Insert 1 geometric mean between 7/8 and 175/32. A single number of this kind is called the geometric mean of 2 numbers.
22) The population of a certain town is 5000. If it increases 5% every year, what will the approximate population be at the end of 10 years?
23) A rubber ball is dropped from a height of 9ft. If it rebounds 1/3 of the distance it has fallen after each fall, how far will it rebound the 6th time? Through what distance has it traveled when it strikes the ground the 7th time?