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The concentration of a biomolecule inside a rod shaped prokayorate call is 0.0025M Calculate the number molecules inside the cell, which is 2.4 um long and 1.4 um in diameter.
1um=1*10^-4 cm
1*10^3 cm^3 in 1 L
Three gases, hydrogen, helium, and krypton are confined in a 10.0 L vessel at a pressure of 6.00 atm. The vessel contains 4.00 moles of hydrogen, 3.00 moles of helium, and 5.00 moles of krypton.
Write the balanced equation for the solvolysis of 2-chloro-2-methylpropane in water. 2. If it took 106 s for the color to change after 2.00 mL of NaOH were added to the flask, calculate the concentration of 2-chloro-2-methylpropane present in solu..
Find the pH of a solution prepared by dissolving all of the following compounds in one beaker and diluting to a volume of 1.00 L: 0.180 moles acetic acid (pKa=4.75), 0.180 mole sodium acetate
In less than a 150 words, explain why swirling or shaking a solution and its drying agent hastens the drying process.
Estimate the magnitude of the absoulte error and percent error in the measured sample volumes. Compare those errors to the errors that occur when measuring volumes of approximately 8mL
Write the net ionic equations for & the reactions occurring for each cation in the group.
A sample of nitrogen gas occupies a volume of 3.87 liters at 52.8 oC and 2.11 atm. What will the new temperature (in °C) when the volume increases to 4.55 liters and the pressure remains constant?
A volume of 70.0 mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 18.2 mL of 1.50 M H2SO4 was needed? The equation is 2KOH+H2SO4K-->2SO4+2H2O
Determine the [H+] and the pH of a buffer containing 0.20 M acetic acid and 0.10 M sodium acetate. 2. Calculate the percent dissociation of acetic acid in this solution
What is the voltage of the cell: silver-silver chloride electrode || saturated calomel electrode given that the potential for the Ag|AgCl electrode in a saturated KCl
A flask contains 0.180 mol of liquid bromine, Br_2. Determine the number of bromine molecules present in the flask.
Which of the following has the smallest mass? a. 3.50 x 1023 molecules of I2
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