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Each of the following solutions is separated from a solution containing pure water with a semipermeable membrane. Assuming they all have the same temperature, rank the solutions from the highest to the lowest osmotic pressure. Rank the solutions from highest to lowest osmotic pressure. To rank items as equivalent, overlap them: 5.0% KCl, 0.7% KCl, 1.5% KCl, 1.8% KCl, 8.6% KCl.
A robust first grader goes for swimming lessons three times a week, and he enjoys it thoroughly. During the first week of December, he develops an upper respiratory infection, starts coughing continuously, and has a high fever of 39°C.
What volumes of the stock solution will you have to pipet into the flasks to prepare standards and What mass of gas does the container contains If the volume of a container
Calculate how many moles of sodium phosphate are needed to react completely with 4.6 mol of calcium nitrate( Ca(NO 3 ) 2 ) to form sodium nitrate (NaNO 3 ) and calcium phosphate?
the compound freon-12 (CCl2F2) is used as a coolant in refrigerators and air conditioners. It is produced through the following reaction: CCl4+SbF3-> CCl2F2+SbCl3. If 15.0 mole of freon-12 are to be produced, what mass of the carbon tetrachloride ..
The concentration of glucose in blood is approximately 90 mg/100 mL. What is the weight/volume percent concentration of glucose. what is the molariy of glucose
Complete the two half reactions for the Pt electrode. (c) Write two correct Nernst equations for the cell voltage
Explain why higher levels of defects are found in solids at high temperatures and close to their melting points.
A sample of gas has an initial volume of 13.4 L at a pressure of 1.27 atm. If the sample is compressed to a volume of 10.2 L, what will its pressure be
Using the relationship between energy and wavelength (Beer's Law), explain which direction (higher wavelength or lower wavelength) the (max wavlength) will be found for butene compared with that for a butadiene
Calculate the temperature (K) at which the equation as written is at equilibrium. Express your answer to three significant figures.
what are the differences in the type of inhibition caused by heat, acid or base, and heavy metal ions on enzyme activity?
when 0.6 g of impure zinc reacted with an excess of hydrochloric acid 135 ml of hydrogen was collected over water at
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