3. calculate the molarity of the sodium ion in a solution made by dissolving 15.5 g of na25o4 10h20 and making the volume up to 150 me. a. 2 x 15.5 x 1000/ (322.2 x 150) b. 15.5 x 1000/ (2 x 322.2 x 750) c. 2 x 15.5 x 1000/ (142.0 x 750) d. 15.5 x 1000/(2 x 142.0 x 750) e. 15.5 x 1000/ (46 x 750)

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?

Maya wrote if you step to describe how carbon circulates between the atmosphere and living organisms

Calculate the molarity of each aqueous solution: a. 78.0 ml of 0.240 m naoh diluted to 0.250 l with water b. 38.5 ml of 1.2 m hno3 diluted to 0.130 l with water