What is the concentration of the barium hydroxide
If 100 mL of BaSO4 solution required 33.79 mL of 0.1050M sulfuric acid to reach the equivalence point, what is the concentration of the barium hydroxide?
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A 6.2 cm diameter pipe gradually narrows to 4.0 cm. When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 34.0 kPa and 24.0 kPa, respectively. What is the volume rate of flow?
If the specific internal energy of the gas decreases by 29.8kJ/kg during the process, determine the heat transfer, in kJ. Assume kinetic and potential energy effects are negligible.
HCl, HBr, and HI are strong acids, yet HF is a weak acid. What does that mean in terms of the extent to which these substances are ionized in solution?
A third charge of +3q is located on the x axis at such a place that the net electrostatic force on the charge at the origin triples, its direction remaining unchanged. Where should the third charge be located?
Give an approximate value for the charge on the comb. Does the comb carry an excess of electrons or of protons? How many?
Then it is isothermally compressed to state 3. Draw the diagram of the process on a PV chart and find the equation for total work.
Point charges of -10 µC, 1.0 µC, and +10 µC are located along the x axis at x = -1.0 cm, x = 0, and x = +1.0 cm, respectively. Calculate the electric field at x = 3.0 cm.
Sketch reasonably accurately the pH curve for the titration of10.0 mL of 0.001M KOH (aq) with 0.1M HCl (aq). Calculate and markon the curve (a) the initial pH, (b) volume of HCl added to reachthe stoichiometric.
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