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Calcium carbonate CaCO3 reacts with stomach acid HCL according to the following equation: CaCO3 + HCl --- CaCl2 + H2O + CO2. Tums, antacid, contains CaCO3. If tums is added to 20.0 mL of 4.00M HCl, How many grams of CO2 gas are produced.
The manometer shown below measures the pressure of the water in the tank. Using variables for the densities (no values given), find the gage pressure at point A.
Give the overall balanced reaction, and determine E° for the galvanic cells. Assume that all concentrations are 1.0 M and that all partial pressures are 1.0 atm.
A solution containing 3.50 of sodium carbonate is mixed with one containing 5.00 of silver nitrate. How many grams of sodium carbonate are present after reaction?
Suppose that a fully charged lead-acid battery contains 1.50 L of 5.00 M H2SO4. What will be the concentration of H2SO4 in the battery after 3.30 A of current is drawn from the battery for 8.00 hours?
a 325 ml sample of solution contains 25.3 g of CaCl2. calculate molar concentration of Cl- in this solution
Determine the enthalpy for the given reaction as CS2
A gas sample containing 1.35 mol at 25°C exerts a pressure of 405 torr. Some gas is added to the same container, and the temperature is increased to 50.°C. If the pressure increases to 800. torr, how many moles of gas were added to the container?
A sample of neon has a volume of 575 mL when it is at a pressure of 751 mmHg. What will be the volume when the pressure is increased to 1262 mmHg?
What is the pH of a buffer solution that is 0.15 M chloroacetic acid and 0.10 M sodium chloroacetate? Ka = 1.3x10^-3.
An automobile gasoline tank holds 22kg of gasoline. When the gasoline burns, 85kg of oxygen is consumed & carbon dioxide & water are produced? What is the total combined mass of carbon dioxide & water that is produced?
vinegar is a 5.0% solution by weight of acetic acid (CH3CO2H)in water. given that the ph for acetic acid is 2.41, the ka=1.8X10-5 and assuming the density of vinegar to be 1.00g/cm3, what is the percent dissociation for acetic acid in vinegar?
How many milliliters of .02 M HCl are used to completely neutralize 20.0mL of .01 M NaOH solution?
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