chemistry
a 205 mg sample of diprotic acid is dissolved in enough water to make 250 ml of solution. The pH of this solution is 2.15. A saturated solution of calcium hyrdoxide (Ksp=1.3*10^-6) is prepared by adding excess calcium hydroxide to water and then removing the undissovled solid ...
chemistry
explain how you would develop a scheme to separate and identify ag, pb, fe,and al in a solution that might contain all four as ions
Physics
The potetial energy of a spring is 0.25 J when it is compressed 0.05m to the left of the equilibrium position. At this point it comes to its leftmost position. What is its kinetic energy when it returns to its equilibrium point? a. zero b. 0.25 J and the object is moving to th...
spelling
What does v/cv and v/va mean
geometry
Find the area of a circle circumscribed about an equilateral triangle whose side is 18 inches long.
spell
I need 6 letter word with second letter is I and fourth letter is Y. No more vowels.
algebra
The Physical Education Deparment sells t-shirts for $12 and shorts for $8. One month, they sold 77 total items for $780 in total. How many t-shirts did they sell?
Chemistry
What is the mass of 14 liters of gasoline? Assume that the density of gasloine is .680 grams per cubic centimeter. Provide answer in kilograms.
Calculus
If the slope is 3, find an equation of the tangent line to the curve at P(8, -3).
math
im sorry my computer had the jitters you dont have to be rude so excuse me!
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