How would you prepare liters of solutions
How would you prepare 2.0 Liters of 0.20 M NaOH solution from50% (w/w) NaOH solution that has a density of 1.53 g/mL? All measurements must be by volume and not mass.
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Design a 1D compressed air rocket engine. Assume standard atm conditions and isentropic flow. k=1.4, R=0.287. Determine tank ressure required producing a Machof 1,3,5, 7, and 9.
Lithium iodide has a lattice energy of -730 kJ/mol and a heat ofhydration of -793 kJ/mol. Determine how much heat is evolvedor absorbed when 15.0 g of lithium iodide completely dissolves in water.
A charge of 120 µC is at the center of a cube of edge 80.0 cm. No other charges are nearby. (a) Find the total flux through each face of the cube. (b) Find the flux through the whole surface of the cube.
Determine (a) the natural frequency in rpm of the platform if there were no damping, (b) the frequency in rpm of the periodic force corresponding to the maximum value of the magnification factor.
Now from the origin draw vectors to represent both the initial and final positions and a vector that gives the displacement vector.
The 1.5 kg ball is pulled back to a height of 0.7 m above its hanging position and then allowed to swing back down toward the 1.1 kg ball. a) Calculate the period of oscillation of the 1.5 kg ball if were allowed to swing freely back and forth.
What is the null hypothesis? Assume a directional hypothesis is warranted. What is the null hypothesis assuming a non-directional hypothesis?
The boiling point of a solution of an electrolyte (122.30 grams;molar mass 196 g/mol) dissolved in water (218.2 grams) wasdetermined to be 102.33 deg C. What is the value for the van't Hofffactor i for the electrolyte in this solution?
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