Thursday

September 3, 2015
Total # Posts: 12

**Chemistry PLEASE HELP!!!**

thank you that definitely helps. i just have one question, line 5: 9.5-9.25 + log (10/0./2x) is that supposed to read 9.5-9.25 + log (10/0.1/2x)? just a bit confused., and also why is it divided by 2x? i have an exam for this on friday morning.
*December 11, 2012*

**Chemistry PLEASE HELP!!!**

thank you that definitely helps. i just have one question, line 5: 9.5-9.25 + log (10/0./2x) is that supposed to read 9.5-9.25 + log (10/0.1/2x)? just a bit confused.
*December 11, 2012*

**Chemistry PLEASE HELP!!!**

'A buffer is prepared by mixing a 100.omL of a 0.100 M NH3 solution with a 0.200M solution of NH4CL solution and making the total volume up to 1.000L of water. What is the volume of NH4Cl solution required to achieve a buffer at ph=9.5? Ka of NH4=5.6x10^-10. The textbook ...
*December 11, 2012*

**calc**

by cutting away identical squares from each corner of a rectangular piece of cardboard and folding up the resulting flaps, the cardboard may be turned into an open box. if the cardboard is 16 inches long and 10 inches wide, find the dimensions of the box that will yield the ...
*July 19, 2012*

**math**

On the basis of data collected during an experiment, a biologist found that the growth of a fruit fly (Drisophila) with a limited food supply could be approximated by the exponential model below where t denotes the number of days since the beginning of the experiment. n(t)=400...
*July 19, 2012*

**Calculus**

Thanks!
*July 19, 2012*

**Calculus**

N(t)= 600/1+24e^-0.21t
*July 19, 2012*

**Calculus **

On the basis of data collected during an experiment, a biologist found that the growth of a fruit fly (Drisophila) with a limited food supply could be approximated by the exponential model below where t denotes the number of days since the beginning of the experiment. (a) What...
*July 19, 2012*

**Calculus**

Transportation engineers use traffic flow data to design the timing of traffic lights at intersections. At a certain intersection, the traffic flow, F(t), is modeled by the function F(t)=82+4sin(t/2) when 0¡Üt¡Ü30 minutes, where F(t), in vehicles per ...
*February 26, 2011*

**geography**

what is a deferred junction?
*October 5, 2010*

**Finance**

Is the payee the person who's name is after Pay to the Order of? Thanks.
*March 9, 2009*

**LAB!! branch**

i need help
*August 6, 2006*

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