Wednesday
December 11, 2013

Total # Posts: 110

Chemistry
A scientist wants to make a solution of tribasic sodium phosphate, , for a laboratory experiment. How many grams of will be needed to produce 625 of a solution that has a concentration of ions of 0.800

AgBio1
Evidence shows that hippos and whales are closely related organisms. How might evolution and adaptation account for similarities and differences between them.?

Pre-Calc
How would I solve: X^(4/3)+X^(2/3)=28

geography
I have the same essay question. here's part of my notes...the eastern part of the Taklimakan desert receives less than 0.5 inches of rain per year...hope i helped!!

geography
I have the same essay question. here's part of my notes...the eastern part of the Taklimakan desert receives less than 0.5 inches of rain per year...hope i helped!!

chemistry
What volume of 0.406 M KOH is required to completely react with 18.50 mL of 0.287 M H2SO4?

chemistry
What is the concentration of HCl in a 250.0 mL sample of hydrochloric acid if 15.5 mL of 0.0100 M NaOH is needed to react with all the HCl?

chemistry
Calculate the volkume of 0.750 M KNO3 that contains 17.0 grams of KNO3?

chemistry
How many grams of sodium hydroxide are required to prepare 500 mL of 0.500 M NaOH?

Physics
Compare the gravitational force on an 11 kg mass at the surface of the Earth (with radius 6.3 X 10^6 m and mass 6 X 10^24 kg) with that on the surface of the Moon (with mass 1/81.3 ME and radius 0.27 RE). What is the force on the Earth? What is the force on the moon?

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