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What do you think is the difference between a theory and a hypothesis?
80 micrograms of lead were detected in 5 L of drinking water. What is the concentration of lead in molarity (M)
Discuss the relationship between the proper functioning of enzymes and the tertiary structure of proteins
Calculate the most probable speed of an ozone molecule in the stratosphere, where the temperature is 270 K
When a 3.400 gram sample of an unknown alcohol is burned in oxygen, the products were carefully collected and weighed yielding 6.494 grams of CO2 and 3.985 grams of H2O. If the molecular weight of the unknown is 46.069 g/mol, what is the molecular ..
Calculate the pH of a buffer made with 0.50M phosphoric acid and 0.75M sodium dihydrogenphosphate. Ka = 7.5 x 10-3.
What would be the change in pressure in a sealed 10.0 L vessel due to the formation of N2 gas when 32.0 g of NH4NO2 decomposes at 25 degrees C
The freezing point of t-butanol is 25.50°C and Kf is 9.1°C · kg/mol. Usually t-butanol absorbs water on exposure to air. If the freezing point of a 10.2 g sample of t-butanol is 24.59°C, how many grams of water are present in the sample?
Consider the conductance of the following 0.025 M Solutions.How do I use data to classify each solute as either a nonelectrolyte (NE), a weak electrolyte (WE), or a strong electrolyte (SE)
you need to produce a buffer solution that has a ph of 5.44.you already have a solution that contains 10 millimoles
A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 265.0 Torr at 45.0 °C. Calculate the value of ?H°vap for this liquid. Also, calculate the normal boiling point for this liquid.
Compute the standard enthalpy of formation of gaseous diborane (B2H6) using the following thermo chemical information: 4B (s) + 3O2 (g) ==> 2B2O3 (s) change in H= -2509.1 kJ
How do we know if a buffer is more effective against an added acid or an added base
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