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3. A balloon contains 14.0 L of air at a pressure of 760 torr. What will the volume of the air be when the balloon is taken to a depth of 10 ft in a swimming pool where the pressure is 981 torr? The temperature of the air does not change.
2. The owner of Molina’s Toy Balloon at Public Market has a 200.0 L Helium gas at a temperature of 280C and a pressure of 760 mmHg and transferred to a tank with a volume of 68.0 L. What is the internal pressure in atm of the tank if the temperature is maintained?
Formula: P1 V1= P2V2 therefore, P2= P1V1 V2 V2 V2
1.My grandmother was hospitalized at the Community Hospital due to difficulty in breathing. The nurse supported her breathing with the aid of oxygen gas. The nurse noted that the tank of oxygen gas has a volume of 14.0L and a pressure of 1 atm. Find the volume of the oxygen when its pressure is changed to 1.2 atm while the temperature is held constant.
Given: V1=14.0 L, P1= 1.0 atm, P2= 1.2 atm
sketch the titration curves for 10.00 mL of 0.0200 M HCI with 0.1000 M NsOH at 25\deg C and 10.00mL of 0.0200 M CH_(3)COOOH (Ka-0.000018) with0.1000 M NaOH at 20\deg C
Use the following NMR- and mass-spectral data to identify the structures of two unknown compounds, A and B.
B: 1H NMR: δ = 1.00 (s, 9 H), 1.17 (s, 6 H), 1.28 (s, 2 H), and 1.42 (s, 2 H) ppm. Mass spectrum m/z (relative intensity) = 129(0.05), 114(3), 72(4), and 58(100).
Calculate the mass of ammonium phosphate in a 815mL, 0.163 mol/L sample of ammonium sulfate (NH4)2SO4(aq) solution.
Many people use a solution of trisodium phosphate, Na3PO4 to clean walls before putting up wallpaper. The recommended concentration is 1.7% (m/v). Calculate the molar concentration.
- What mass of zinc is needed to react with 23.1 g of phosphoric acid according to the following equation?
3 Zn + 2 H3(PO4) 🡪 3 H2 + 1 Zn3(PO4)2
What is amount of energy released in the formation of one mole of SrO bonds . The radius of stronium ion is 113pm and the radius of the oxide ion is 140pm?
What is the new volume of a 500.0 mL solution of NaCI with a concentration of 3.00 M that is diluted to a
concentration of 2.50 M?
