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Identify the last certain digit for the number 5.367.

How many significant digits in the number 0.0025.

All scientists wear lab coats.

Which of the following is a characteristic of Sensory Over-Responsivity (SOR)?

What is the solubility concentration (M) of nitrogen gas in 25 °C water and at a nitrogen pressure of 3.5 atm? The solubility of nitrogen gas in water at 25 °C and a nitrogen pressure of 1.0 atm is 

What types of intermolecular forces exist between NH3 and H2O?

What is the molal concentration of potassium bromide in a solution prepared by dissolving 2.27 g of potassium bromide in 897 g of water?

What is the molal concentration of a benzene (C6H6) solution prepared by mixing 13.0 g benzene with 38.0 g of carbon tetrachloride?

The solubility of oxygen gas in water at 25 °C and 1.0 atm pressure of oxygen is 0.041 g/L.  The solubility of oxygen in water at 4.0 atm and 25 °C is ________ g/L.

Answer the following questions about a solution made by dissolving 13.0 g of an unknown non-electrolyte substance in 117 g water at 20°C. Write all answers in decimal format and pay attention to significant figures (don’t include units)!   If the osmotic pressure of this solution was found to be 7.32 atm, what is the concentration of this solution (in M)? [molarity]   If the density of the solution is 1.04 g/mL, what is the volume of solution (in mL)? [volume]   How many moles of solute are present in the solution? [moles]   What is the molar mass of the solute (in g/mol)? [MM]