An experiment is performed to determine if pennies are made of pure copper. The mass of 11 pennies was measured on a balance and found to be 26.748 g. The volume was found by dropping the 11 pennies into a graduated cylinder initially containing 10.00 mL of water. The volume after the pennies were added was 12.90 mL.

The density Of iron is 7.87 g/cm³. a 14.5 g chunk of iron is added to a grant graduated cylinder. If the final volume of the graduated cylinder is 39.8 mL, what would be the starting volume

part a) A student measured the mass of an empty micropicnometer to be 2.000g. A student places 0.500mL of citric acid solution into a micropicnometer. The student reweighed the micropicnometer and found the mass of the citric acid solution and micropicnometer to be 2.525g.  Calculate the density of the citric acid solution in g/ml. part b) A student measured the mass of an empty micropicnometer to be 2.000g. A student places 0.500mL of citric acid solution into a micropicnometer. The student reweighed the micropicnometer and found the mass of the citric acid solution and micropicnometer to be 2.525g.    A student titrates 0.101mL of citric acid solution using the standardized 0.1M solution (use the exact concentration calculated from the previous titration problem). The sample required 0.819mL of NaOH solution to reach the end point.   Given the following chemical equation.   NaOH   +  H3C6H5O7 →  Na+ +   H2O  +   C6H5O73-   Given the above information. Calculate the mass of citric…

The mass of a piece of metal is 28.3055 grams. When the piece of metal was dropped into a graduated cylinder that had an initial water volume of 7.34 cm3, the total volume was 9.84 cm3. What is the density of the piece of metal in g/cm3?