Monday
July 25, 2016

Posts by TS

Total # Posts: 33

Chemistry
Rule of thumb gives the activation energy of most organic reactions as approximately 50 kJ/mol. Based on that, calculate by what factor the reaction rate increases when the temperature climbs from 25°C to 45°C. 1. 3.6 2. 3.2 x 1046 3. 1.001 4. 1.3
June 21, 2016

Chemistry
A sample of beer is 4.6 % by mass C2H5OH. The density of beer is 0.93 g/ml. What is the molar concentration of C2H5OH in this sample of beer? a. 9.7 x 10-4 b. 1.13 x 10-4 c. 0.975 M d. 1.13 M I did 0.046x930 g/L =42.78 mass alcohol 42.78/molar mass of C2H5OH (46.068) = 0.928 ...
June 14, 2016

math
what is the area of a square inscribed in a circle with apothum 3.5cm
May 27, 2016

Chem
HCl is slowly added to a solution that is .250 M in Pb^2+ and .00150 M in Ag+. Which precipitate forms first, PbCl2 or AGCl? At what Cl- ion concentration will the precipitate first appear? Ksp for PbCl2= 1.6*10^-5, Ksp for AgCl= 1.7*10^-10 Seriously don't understand Ksp ...
May 9, 2016

Chem
How many grams of silver sulfate can be dissolved in 450. ml of .200 M sodium sulfate solution? Ksp for Ag2SO4= 1.2*10^-5 Do not understand this solubility question. Please help.
May 9, 2016

Chem
Please help, struggling like crazy.
April 18, 2016

Chem
a) A weak acid, HX, is 1.3% ionized in .20 M solution. What percent of HX is ionized in a .030 M solution? b) Does the percent ionization increase or decrease upon dilution? c) Does the H3O+ concentration of the above weak acid increase or decrease?
April 18, 2016

History
and yes I did read it. I just dont know what to put for the before...
October 23, 2015

History
Okay so Im doing a compare & contrast essay on key events that changed the Unites States between 1776-1870 Of course im going to include the creation of the US Constitution. But, I'm having a hard time coming up with the "before & after" effect? What exactly ...
October 23, 2015

english
^ Ms. Sue is right btw
September 8, 2014

Accounting
Temporary investments A.are reported as current assets B.include cash equivalents C.do not include equity securities D.all of the above
June 8, 2013

Accounting
At the market close on February 19, 2010, McDonald's Corporation had a closing stock price of $64.74. In addition, McDonald's Corporation had a dividend per share of $2.05 over the previous year. Determine McDonald's Corporation's dividend yield. (Round to one ...
June 8, 2013

Accounting
What is the total stockholders' equity based on the following account balances? Common Stock $450,000 Paid-In Capital in Excess of Par 90,000 Retained Earnings 190,000 Treasury Stock 10,000 Answer A.$740,000 B.$730,000 C.$720,000 D.$640,000
June 8, 2013

Accounting
The financial loss that each stockholder in a corporation can incur is usually limited to the amount invested by the stockholder. Answer True False
June 8, 2013

Accounting
Samuels, Inc. reported net income for 2011 is $105,000. During 2011 the company had 5,000 shares of $100 par, 5% preferred stock and 20,000 of $5 par common stock outstanding. Samuels’ earnings per share for 2011 is Answer $4.00 $5.25 $6.50 $5.00
June 8, 2013

Physics
A sled is set in motion on a frozen lake. If friction and air resistance are neglible, how much force is required to keep the sled moving at a velocity of 12 m/s?
October 8, 2012

phySICS
PHYSICS when a positive charge moves under the influence of an electric field's electrostatice force, what happens to the electrical potential energy of that charge?
March 29, 2011

phYSICS
the process of charging a conductor by bringing it near another charged object and then grounding the conductor is called... a) charging by contact b) induction c) charging by polarization d) neutralization which one of the following statements is true concerning the madnitude...
March 29, 2011

unterstanding operating systems
Given that main memory is composed of three page frames for public use and that a seven-page program (with pages a,b,c,d,e,f,g) requests pages in the following order: a,b,a,c,d,a,e,f,g,c,b,g
November 6, 2010

social studies
what is the agriculture of egypt ?
January 31, 2010

social studies
what is the agriculture of Egypt
January 31, 2010

ss
what are the products, exports. and imports used for
January 31, 2010

ss
what are the 4 major industries in Egypt used for ??
January 31, 2010

6th grade
what are the 4 major industries in Egypt
January 31, 2010

social studies
what are the industries of Egypt ?
January 29, 2010

social studies
agriculture is food pharmasutical is medication
January 29, 2010

social studies
what are the product, exports, and imports used for
January 29, 2010

social studies
what are the products, exports, and imports used for in egypt
January 29, 2010

social studies
what are the product,exports, and imports of egypt used for
January 29, 2010

social studies
what are the products, Imports & Exports in Egypt
January 29, 2010

social studies
what is the natural resoueces of egypt
January 29, 2010

science
If te earth did not turn how would the pattern of tides be affected
October 22, 2009

Math
1. 37 2.74
October 21, 2009

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