The volume of water in large scale reservoirs is often measured in units of an acre-foot, which is the amount of water covering one acre of surface to a depth of one foot. An acre-foot is equivalent to 43,560 ft³. A particular water tower in town was constructed to hold 2.55 acre-feet of water. What is the volume of water in liters that the water tower will hold? ( 1 US liquid gallon = 231 cubic inches, 3.785 liters = 1 US liquid gallon)

Tums is a popular remedy for acid indigestion. A typical Tums tablet contains calcium carbonate mixed with inert substances. When ingested, it reacts with stomach acids (hydrochloric acid) to produce carbon dioxide gas. When a 1.201 g Tums tablet reacted with 42.035 mL of hydrochloric acid (density: 1.140 g/mL), carbon dioxide gas was produced and the resulting solution weighed 48.941 g. Calculate the mass of carbon dioxide gas released. Calculate the volume of carbon dioxide gas released. The density of carbon dioxide is 1.18 g/L

A house has an area of 221 m2m2. What is its area in each unit? Express the area in square kilometers to three significant figures.

If the price of gold is $1,318.61 per troy ounce (1 troy ounce is exactly 31.1035 grams), what is the mass (in kg) of $1,000,000 of gold?

Magnesium is used in alloys, in batteries, and in the manufacturing of chemicals. It is obtained mostly from seawater, which contains 1.3 g of magnesium for every 1.0 kilograms of seawater. Calculate the volume of seawater in liters needed to extract 8.0 x 104 tons of magnesium, which is roughly the annual production in the United States. given information: density of seawater = 1.03 g/mL ; 1 Kg = 2.21 lb ; 1 ton = 2000 lb

4) Gold, which has a density of 19.32 g/cm3, is sold by the troy ounce (abbreviated oz t), which is 31.103 g. What is the volume, in cubic centimeters, of 1.3 oz t of pure gold?

A chemist prepares a solution of barium chloride (BaCl₂) by measuring out 26.5 μmol of barium chloride into a 300. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's barium chloride solution. Round your answer to 3 significant digits. mol L x10 X

The mass of one atom or molecule of a substance is given in atomic mass units, also called Daltons (abbreviated D or Da). Thus one molecule of water has a mass of 18.015 atomic mass units, or 18.015 Daltons. The atomic mass unit is defined such that one mole of water weighs 18.015 g. Suppose a protein has a mass of 64 192 Daltons (or 64.192 kDa). What would be the mass of one mole of this protein? O A. A protein of 64 192 Da has a molar mass of 3.866 x 1028 g/mol. B. A protein of 64 192 Da has a molar mass of 1.0 g/mol. C. A protein of 64 192 Da has a molar mass of 18.015 g/mol. D. A protein of 64 192 Da has a molar mass of 64.192 g/mol. E. This question can't be answered without knowing the number of atoms in the protein. F. A protein of 64 192 Da has a molar mass of 6.4192 x 10-2 g/mol. G. A protein of 64 192 Da has a molar mass of 3.866 x 1025 g/mol. H. A protein of 64 192 Da has a molar mass of 64 192 g/mol.

The concentration of carbon monoxide (CO), a common air pollutant, is found in a room to be 5.7 x 10-3 mg/cm3. How many grams of CO are present in the room if the room's dimensions measure 3.5m x 3.0m x 3.2m?

A chemist must prepare 525.mL of 320.mM aqueous potassium dichromate K2Cr2O7 working solution. He'll do this by pouring out some 0.510molL aqueous potassium dichromate stock solution into a graduated cylinder and diluting it with distilled water. Calculate the volume in mL  of the potassium dichromate stock solution that the chemist should pour out. Be sure your answer has the correct number of significant digits.       mL