Calculate the mass of KI that should be dissolved in 5.00 x 10 mL of water to make a solution with an osmotic pressure of 8.55 atm at 2.50 C Please help taking a timed test!

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)