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1.) What is the total pressure, in millimeters of mercury, of a gas mixture containing argon gas at 0.25 atm, helium gas at 350 mmHg, and nitrogen gas at 360 Torr?
2.) Your spaceship has docked at a space station above Mars. The temperature inside the space station is a carefully controlled 24 degrees Celsius at a pressure of 745 mmHg. A balloon with a volume of 425 mL drifts into the airlock where the temperature is -95 degrees Celsius and the pressure is 0.115 atm. What is the final volume, in millimeters, of the balloon if n does not change and the balloon is very elastic?
Please write out equtaion and steps
A 1.95 g sample of ascorbic acid is titrated with a 0.89 M red dye. What volume of red dye is required to reach the endpoint. molar mass of red dye= 267.08g/mol; molar mass of ascorbic acid=176.12g/mol
A river of depth 2 m flows downstream at 1 m/s. A surge of depth H moves up the river at 5 m/s relative to a stationary observer on the bank of the river. Find H.
Calculate the final temperature when a 24.7 gram sample of ice at 0oC is placed into a styrofoam cup containing 126 grams of water at 78.0 oC. Assume that there is no loss or gain of heat from the surroundings.
Assuming that this reaction is complete and that there is 153 mg/l of CaSO4 initially present, what is the mass of soda ash that must be added to 1 liter of the water
Explain why the CO ligand donates the lone pair on carbon in bonding to metals rather than the pair
A solution which is 0.010 M in both Mg2+ and Mn2+ ions is buffered to pH 9.30 using an aqueous ammonia-ammonium chloride solution. Under these conditions, only one metal hydroxide precipitates.
What mass of lithopone in grams (to 3 significant figures) is produced in the reaction of 230 mL of 0.308 M ZnSO4 and 325 mL of 0.280 M BaS
For the reaction: CO(g) + 2H2(g) = CH3OH(g) Kp = 2.26 X 10^4 at 25C Calculate Delta Grxn for the following conditions: P(CH3OH) = 1.0 atm P(CO) = P(H2) = 0.010atm
If 20.45 ml of the above standardized base is required to neutralize 20.4 mg of an unknown organic acid, what is the molar mass of the carboxylic acid
Calculate E, q, and w if 8.00 moles of CO2 (g) reacts with excess nitrogen gas according to the following reaction at 25°C and 1.00 atm:
3.) Use standard enthalpies of formation to calculate the standard enthalpy of the reaction:
calculate the concentrations of all species in a .890 m sodium sulfite solution. the ionization constants for sulfurous acid are ka1= 1.4x10^-2 and ka2=6.3x10^-8
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