Wednesday

July 23, 2014

July 23, 2014

Total # Posts: 12

**Calculus Help Please!!! Check**

a, b, and c look correct. For d, divide your answer from c by 4, plug it into the height equation, and solve for t. For e, it took 25 to reach the peak so it will take twice that long to reach 0 again (set s=0 and solve for t).

**Math - Please Check My Answers**

For 3, I don't see anything wrong with the work unless the initial equation is supposed to be sqrt(4x)-6=12 in which case the squaring wasn't done correctly, but based off what I see there D IS correct. For 4, A is the correct answer. You cannot take the square root of...

**mathematics**

There are two at the end of the first week and doubles til the end of 6 weeks so 2*2*2*2*2*2=2^6=64 First two for the initial number of buds each of following twos for the weeks following

**Chemistry**

This would be an enthalpy of combustion, not formation. The heat of combustion for decane is 6777.45kJ/mol.

**Chemistry**

Octane has a vapor pressure of 40 torr at 45.1 degrees Celsius and 400 torr at 104 degrees Celsius. What is its heat of vaporization? (Given R=8.314J/mol*K) Please explain.

**Chemistry**

A solution of potassium hydroxide is in equilibrium with an undissolved solute at 45 degrees Celsius. What will happen to the mass of the potassium hydroxide if the temperature is raised to 50 degrees Celsius? (Given that heat of solution is -57.6kJ/mol)Please explain as well.

**Science**

i believe number 2 is D. erractics

**Social Studies**

In the election of 1860 the _____ won the electoral votes of all the free states except a fraction of the new jersey votes.

**Math**

Anna Age-6 Laura Age-3 Product= 6*3=18 Sum=6+3=9

**Math**

Anna is 3 years older than Laura. The product of thier ages is double the sum of thier ages. How old are they?

**college**

You transfer a sample of gas at 17 degrees celsius for a volume of 5.86 L and 1.10 atm to a container at 37 degrees celsius that has a pressure of 1.10 atm. what is the new volume of gas?

**Organic Chemistry**

I've been told that both scratching the outside and seeding can cause crystallization, but don't take my word. I'm not totally sure.

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