Friday

September 19, 2014

September 19, 2014

Total # Posts: 22

**Chemistry**

What mass of KOH is required to neutralize 200mL of 3.16 M HNO3?
*June 10, 2013*

**Math**

4 3/4 + v = 17 1/8 What is v
*October 16, 2012*

**Math**

4 3/4+v=17 1/8 What is v
*October 16, 2012*

**Math**

What is the value of y. Y-4/5=11/20
*October 16, 2012*

**english**

what is the complete and simple subject for "Valentine's day has a very interesting History."
*September 25, 2012*

**math**

The length of a train 15 cars long if 1 car is 18 m long
*January 20, 2011*

**Probability**

I need help calculating a c value such that f(x,y) is a probability density function. What makes a function a probability density function?
*November 8, 2010*

**Biology**

In what situations would sampling work best for estimating population size, in what situations would mark and recapture work best and why?
*October 3, 2010*

**Finance**

Year Cash Flow 1 $695,000 2 876,250 3 1,057,500 4 1,238,750 5 1,420,000 1. Calculate the IRR and NPV of this project utilizing a 12% discount rate and a 15% cap rate. Ms. Brown was able to secure a loan for $1,540,000, and an equity investor agreed to invest the remaining $660...
*July 19, 2010*

**REDWOOD ELEM**

1 OVER T MINUS 2 EQUALS T OVER 8 PLEASE HELP ME SOLVE
*June 4, 2010*

**chemistry**

what is the density of O2 gas at STP
*May 4, 2010*

**chemistry**

calculate the number of moles there are when a gas occupies a volume of 3.95L at 37 degrees C and .985 atm
*May 4, 2010*

**chemistry**

if 429 grams of gas occupies 25.6L at 49 degrees C at a pressure of 759 mmHg what volume will 4.29g of gas will occupy at 53 degrees C (assume pressure is unchanged)
*May 4, 2010*

**chemistry**

Calculate the pressure in atm of a balloon filled with 7.50g of helium gas if the balloon's volume decreases to 7.50L. Suppose the balloon's pressure and volume are originally 799 mmHg and 15.0L.
*May 4, 2010*

**chemistry**

calculate the pressure in atm of a balloon filled with 7.5g of helium gas if the baloons volume decreases to 7.5L suppose the balloons pressure and volume are originally 799 mmHg and 15L
*May 4, 2010*

**chemistry**

convert 353 torr to atm
*May 4, 2010*

**chemistry**

calculate the percent composition or w/v% of 3x10 to the 2nd power mL solution containing 15g of glucose
*May 4, 2010*

**chemistry**

calculate the amount of heat necessary ti raise the temperature of 8.5kg of water from 12.5 to 84 degrees C
*May 4, 2010*

**chemistry**

the specific heat of aluminum is 0.214 cal/g degrees C. calculate the heat necessary to raise the temperature of 55.5g of aluminum from 23 to 48.6 degrees C
*May 4, 2010*

**chem ap**

please tell me if i am correct a buffer is made using HF and NaF-with a pH of 3.00. compute the ratio of the conjugate base F- to weak acid HF. I previously found Ka of HF which is 7.2x10^-4 and the ph of HF is 3.15. the concentration of NaF would be 1.00x10^-2 ???? and so the...
*April 17, 2008*

**chem AP**

does CrCl3 form an acidic solution in water?
*April 15, 2008*

**math pre-algebra**

N to the power of negative 5 N to the power of negative 5 is aready in its simplest form. Unless you know the value of N, this problem can't be solved any further.
*January 22, 2007*

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