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)

Q: A medical doctor gives the order to administer dopamine at a rate of 3.0 mcg/kg⋅min (mcg is the…

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Q: It has been estimated that 8.0 × 104 tons of gold (Au)have been mined. Assume gold costs $1350 per…

A: Given that : Mass of gold = 8.0×104 tons Cost of gold = $1350 per troy ounce Worth of gold =? (1…

Q: The density of silver is 10.5 g/cm3. What would be the mass in grams of a piece of silver that…

A: Given that  Density of silver (Ag) = 10.5 gm/cm3 volume occupied by silver (Ag) = 23.6 cm3 We know…

Q: A chemist must dilute 78.3 mL of 9.91 mM aqueous calcium sulfate (CaSO4) solution until the…

A: For dilution, we can use the formula:Here, M1 = molarity of the original solutionV1 = volume of the…

Q: A sample is found to contain 8.47×10-6 g of salt. Express this quantity in nanograms.

A: Given that Mass of sample (salt) = 8.47 × 10-6 g Mass of sample  = ? ng

Q: The concentration of mercury in a polluted lake is 0.33 micrograms per liter of water. What is the…

A: Given,Volume of the lake = 1.5 x 1012cm30.33 micrograms per liter of water

Q: Gold, which has a density of 19.32g/cm^3, is sold by the troy ounce, which is 31.103 g. What is the…

A: We will use this formula, Volume = Mass/density

Q: The solubility of CoCl2 in water is 52.9 g of CoCl2 per 100 g of water. 105.3 g of CoCl2 are added…

A: Given: The solubility of CoCl2 in water is 52.9 g of CoCl2 per 100 g of water. 105.3 g of CoCl2 are…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Covert  j/Mol into kj/Mol

Q: In a laboratory, you determine that the density of a certain solid is 5.23 x 10 ° kg/mm. Convert…

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Q: In the opening scene of the movie Raiders of the Lost Ark, Indiana Jones tries to remove a gold idol…

A: A) Given : mass of sand = mass of idol And volume of idol = 1.5 L Since mass = density X volume…

Q: A chemist prepares a solution of copper(II) sulfate (CuSO4) by measuring out 12. g of copper(II)…

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Q: A chemist must prepare  550.mL  of  60.0mM aqueous potassium dichromate  K2Cr2O7 working…

A: Dilution is the process of decreasing the concentration of a solute by mixing more solvent. Dilution…

Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: Given : Mass of water in swimming pool = 8.45 X 104 gallons  Mass percent of chlorine = 6.00 %  And…

Q: When aluminum metal reacts with HCI(aq), the products formed are AICI3(aq) and hydrogen. If 2.326…

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Q: In 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the mass…

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Q: A homogeneous mixture was prepared by mixing 0.90 g A, 105.7 g B and 48.17 g C. The volume is found…

A: Given, Volume of mixture = 56.6 cm3 Mass of A = 0.90 g Mass of B = 105 .7 g Mass of C = 48.17 g

Q: If a sample of unknown substance has a mass of 3.10 kg and a volume of 1.80 L, what is the density…

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Q: An instrument used to detect metals in drinking water can detect as  little as 1 μg of mercury in 1…

A: According to this question, Using formulas are  No.of atoms in V Ltrs of water = mass in V Ltrs…

Q: Carry out the following conversions: (a) 32.4 yd to centimeters, (b) 3.0 × 1010 cm/s to ft/s, (c)…

A: (a) 32.4 yd to centimeters, (b) 3.0 × 1010 cm/s to ft/s, (c) 1.42 light-years to miles (a light-year…

Q: Radiation exposure to human beings is usually given in rems (radiation equivalent for man). In SI…

A: The given radiation exposure due to nuclear reactor in Japan = 8217 mSv/h  Given the time of…

Q: A chemistry student needs 40.0 mL of glycerol for an experiment. By consulting the CRC Handbook of…

A: Given  Volume of glycerol = 40 mL  density of glycerol  = 1.26 gram cm-3 or 1.26 gram/cm3 Mass of…

Q: Assume that the total volume of seawater on Earth is 1.96 ×1021 L. Also, assume that seawater…

A: Given,Volume of seawater = 1.96 ×1021 L = 1.96 ×1024 mL     (1L = 103 mL)Density of seawater = 1.03…

Q: mol aqueous L A chemist must prepare 875. mL of 10.0 mM aqueous calcium sulfate (CaS0,) working…

A: On dilution, the concentration of solution decreases but the number of moles remain constant. Write…

Q: A chemist must dilute 73.5 mL of 3.19 M aqueous zinc nitrate (Zn . She'll do this by adding…

A: (Before dilution) Initial volume of aqueous zinc nitrate Zn(NO3)2 solution = V1 = 73.5 mL  (1mL =…

Q: Calculate the volume in cubic centimeters occupied by one molecule of water in a beaker of water.…

A: Given that:                    Density of water = 1.00 g/cm3 To find:                  Volume…

Q: Suppose

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Q: A chemist must dilute 44.5 mL of 443. mM aqueous copper(II) sulfate (CuSO4) solution until the…

A:

Q: Digitalis, a drug used to control atrial fibrillation in patients is to be given as 20.0 mg/kg body…

A: Given: Body weight = 160.0 pound Dose for patient: 20.0 mg/kg body weight 2.205 pounds = 1.00 kg

Q: A chemist must prepare 550. mL of 45.0 mM aqueous copper(II) sulfate (CuSO4) working solution. He'll…

A: When a concentrated solution is diluted then number of moles remains same only volume of solution…

Q: the density of mercury, the only metal to exist as a liquid at room temperature, is 13.6 g/cm^3.…

A: The density of mercury is given as 13.6 g/cm3 and it is required to convert this in pounds per cubic…

Q: The density of iron is 7.86 g/cm3. What is the volume in milliliters (mL) of an irregularly shaped…

A: • The values provided in the question are:-  i) Density of Iron, d = 7.86 g/cm3 ii) Mass of Iron, m…

Q: what mass (in g) of solid lead would displace exactly 234.6 liters of water? The density of the lead…

A: Given : density of lead = 11.4 g/cm3                                                 Volume of water…

Q: In the combustion of ethanol, 20.50 g of carbon dioxide gas was produced, What is the volume in mL…

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Q: Some time ago, a U.S. citizen traveling in Canada observed that the price of regular gasoline was…

A: The price of regular gasoline in Canada is = 0.958 Canadian dollars/L The exchange rate of the…

Q: What is the circumference in kilometers (km)? in meters (m) (1 mi = 1.6093 km)

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Q: mass of the necklace

A: This is simply a question of density. As we know that by using concept of density, we can calculate…

Q: Carbon

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: A chemist must prepare 750. mL of 240. mM aqueous sodium carbonate (Na₂CO3) working solution. He'll…

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Q: The distance between the centers of the two oxygen atoms in an oxygen molecule is 1.21 × 10−8 cm.…

A: Units of measurement are needed for the desired calculations. It gives different ways to work out…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.