Tuesday
December 10, 2013

# Posts by Gerry

Total # Posts: 24

Chemistry
Please ignore my previous answer in which I assumed that [A-] = [H+]. I think [A-] should be calculated using the partial titration data, and [H+] is known from the pH. My latest attempt is below: 0.0447 L total neut'n with NaOH 0.03443 L partial neut'n 0.1 M NaOH 0.00...

Chemistry
anyone else get the same answer? 0.0447 L total neut'n with NaOH 0.03443 L partial neut'n 0.1 M NaOH 0.00447 moles T Total 0.04720169 T (M) 0.003443 moles P Partial 0.040779344 P (M) 4.8 pH 1.58489E-05 [H] = [A-] 3.91117E-08 Ka

Physics
An aluminum block slides along a horizontal surface. The block has an initial speed of 11.6 m/s and an initial temperature of 10.7°C. The block eventually slides to rest due to friction. Assuming all the initial kinetic energy is converted to heat energy and all this energ...

chemistry
if you start with 1.25g of Cu, calculate the amount that will precipitate

8th grade science
what functions does a nuclear membrane, chromatin, and nucleolus have

social studies
yes because they could have gave the an education, helped the financially, and could have made laws against racism and segregation right then and there

Math
If a shot is fired directly upward at 1200 feet per second from a ground elevation of 8oo feet above sea level, how high would it go above the ground level? Thanks, Gerry

Math
Two cards are drawn with replacement from an ordinary deck of 52 playing cards. What is the probability that the first card is a heart and the second card is a diamond?

social studies
what role did italy play in the resistance during world war 2

lAM
Calculate the density of oxygen, , under each of the following conditions: STP 1.00 atm and 25.0 C

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