Saturday
May 25, 2013

# Posts by martin

Total # Posts: 166

Chem
wait is it 24 moles ?

Chem
i meant 12* moles

Chem
so the answer is 2 moles ?

Chem
given the balanced equation: 2Al2O3(s)-->4Al(s)+302(g) What is the total number of moles of O2 that are produced when 8.0 mol of Al2O3(s)are totally decomposed ? please help me.

calculus 1
find the total area between the curves ( y= 4-x ^2 ) and the x-axis over the intervals [0,4]

calculus 1
find the total area between the curve ( y= 4-x to the second power) and the x-axis over the interval [-3,7]

5th math
How many 3,000s in 270,000

Probability help
The heights of the buildings are normally distributed. The mean of the heights is 275 feet and the standard deviation is 30 feet. A. What is the probability that the buildings height is over 280 feet? B. What is the probability that a sample of 80 buildings is gathered and the...

chemistry
URGENT!! You wish to prepare 1 L of a 0.02 M potassium iodate solution. You require that the final concentration be within 1% of 0.02 M and that the concentration must be known accurately to the fourth decimal place. How would you prepare this solution? Specify the glassware y...

English
The Great Coral Reef almost circles New Zealand and it has more marine life than anywhere else in the world.

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