How will you prepare 500 ml of 0.750 m citrate buffer with ph of 4.25 from solid citric acid (h3c6h5o7) and solid sodium citrate (nah2c6h5o7). the ka of citric acid is 7.40 x 10-4.

The table lists pressure and volume values for a particular gas. which is the best estimate for the value of v at p = 7.0 × 103 pascals?

When an object falls through the air and encounters air resistance its overall speed will be than if it had not encountered air resistance? (one word answer)

Asap! will give brainiest when a heat wave strikes a region causing more people to run air-conditioning units, electrical demand increases. what needs to be done to meet this increased demand? raising the control rodslowering the control rodsremoving the control rods