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1. Write the balanced reaction equation for the precipitation of calcium carbonate from potassium carbonate and calcium chloride.
2. Using this balanced equation, determine the limiting reactant if 15 grams of calcium chloride reacted with 15 grams of potassium carbonate.
Using your answer for Question 2, determine the mass of potassium carbonate needed to fully precipitate all the calcium from a 25 mL sample of 15% calcium chloride solution.
How much heat is required to warm 221 g of ice from -44.9°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
draw the molecule by placing atoms on a grid and connect with bonds for when the cyclopentane is exposed to Br2 in presence of light.
Now consider a Rigid Rotator-Harmonic oscillator model for the HD molecule at temperature T=3 K. a) Where is each nuclei located relative to the center of mass in nm?
A local FM radio rock station in San Antonio is known to operate at a frequency 99.5 MHz. Determine the energy associated with a mole of photons emitted by this station in J/mol. (106 Hz = 1 MHz) (1/s = 1 Hz).
A piston has an external pressure of 11.0 bar . How much work has been done if the cylinder goes from a volume of 0.150 liters to 0.570 liters.
Instant cold packs used to treat athletic injuries contain solid NH4NO3 and a pouch of water. When the pack is squeezed, the pouch breaks and the solid dissolves
Determine the concentration of the HCL solution from the data for the standardization of the HCl with the Na2CO3 Na2CO3 had 0.0826 grams in 25ml of water Initial volume of HCl
Calculate the molarity of the 25.0 mL sample of 0.100 acetic acid which was diluted with 25.00 mL H2O
Calculate the mass (grams) of KHP needed to react with 40. mL of 0.10 M NaOH. B. If 0.7528 g of KHP standard were titrated with NaOH and the endpoint was reached at 36.33 mL
HClO is a weak acid (Ka = 4.0 × 10-8) and so the salt NaClO acts as a weak base. What is the pH of a solution that is 0.087 M in NaClO?
The atomic weight of a newly discovered element is 98.225 amu. It has two naturally occuring isotopes. One isotope has a mass of 96.780 amu.
What is the density of a sample of ammonia (NH3) gas in a 4.32 L flask at a pressure of 641 torr and a temperature of 37.0oC?
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