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In your house (elevation 950ft above sea level) you have a barometer that registers inches of mercury. On an average day in january, the pressure was 0.966 bar on 700 ft elevation. what is the correct reading for your barometer? ( specific gravity of mercury is 13.57)
90.0 of is initially at room temperature (22.0). A chilled steel rod at 2.0 is placed in the water. If the final temperature of the system is 21.5.
this solution was added 1.960 grams of KI and 50.00 mL of a 0.00923 M KIO3 solution. The excess I3- was titrated with 50.00 mL of a 0.02000 M Na2S2O3 solution. What was the mass percent of arsenic trichloride in the original sample?
When the following equation is balanced, what is the mole ratio of H2O to Be3N2?
The rate constant of a chemical reaction increases by 100 times when the temperature is increased from 400 °K to 500 °K. Assuming transiytion state theor is valid
What is the pH of a sodium acetate solution prepared by adding 0.820 grams of sodium acetate to 100.0 ml of water at 25.0 oC? The Ka at 25.0 oC for acetic acid is 1.8 × 10-5.
A 125 mL sample of dry air at 230 degrees celcius is cooled to 100 degrees celsius at constant pressure. What volume will the dry air occupy at 100 degrees celsius.
I need help writing the balanced formula equation and the net ionic equation for the reaction of sodium hydroxide with hydrocholoric acid.
Determine What would be the total volume in the graduated cylinder if density of Ag= 10.5 g/mL.?
A distance of 200 ft must be taped in a manner to ensure a standard deviation smaller than ± 0.03 ft. What must be the standard deviation per 100 ft tape length to achieve the desired precision?
For a particular reaction, H = -30. kJ and S = -88 J/K. Assume that H and S do not vary with temperature
2nd derivative (forwards) Gradient-vector, Hessian-vector products Forward-reverse mode Hessian How costly is obtaining Hessian information?
if potassium bromide of 25.5 grams is dissolved in enough H 2 O to make 1750 mL of solution, determine the molarity of the solution?
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