9. Lithium is the least dense metal known (density: 0.53 g/cm^3). What is the volume occupied by 1.20 x10^3 g of lithium?

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: A steel ball-bearing with a circumference of 32.5 mm weighs 4.20 g. What is the density of the steel…

A: Consider the given information is as follows; Mass of the steel ball = 4.20 g Circumference of the…

Q: he concentration of PSA (prostate-specific antigen) in the blood is sometimes used as a screening…

A:

Q: 6. What is the mass, in g, of a piece of iron that has a volume of 1.50 x 10² and a density of 7.20…

A: The mass of a substance is equal to its density multiplied by its volume. In this case, the volume…

Q: the diameter of a 16-gauge wire has a diameter of 0.05082 in. what length of wire in meter is found…

A: Diameter = 0.05082 inch. 1 inch = 2.5cm. 0.05082 inch = .05082 × 2.5 = 0.12705 cm.  Mass = 1.60lb =…

Q: A chemist prepares a solution of sodium carbonate (Na, CO,) by measuring out 62.5 g of sodium…

A: Given :-  Mass of Na2CO3 = 62.5 g  Volume of solution = 350. mL  To determine :-  Concentration of…

Q: An adult should have no more than 23032303 mg of sodium per day. What is this limit in kilograms…

A: Given: Mass of sodium = 23032303 mg   Conversion of mass of sodium from mg to kg: 1 mg = 10-6 kg

Q: Suppose now that you wanted to determine the density of a small crystal to confirm that it is…

A: total volume = 20.0 mL volume of CHCl3 = x volume of CHBr3 = 20 - x total mass = 20 x 2.07 = 41.4 g…

Q: The concentration of carbon monoxide (CO), a common air pollutant, is found in a room to be 5.7 x…

A: The volume of the room is calculated as following,

Q: aqueous solutes fed directly to a patient's veins. If an IV solution is 5.0% glucose by mass, how…

A: % by mass is a concentration term which is used to prepare solution of different concentration. The…

Q: Chalcopyrite is among the most common varieties of copper ore. Assuming chalcopyrite is 34.4%…

A: Given: mass of Copper( Cu ) smelt obtained = 30.0Kg Percentage of Cu in chalcopyrite = 34.4% i.e…

Q: A chemist prepares a solution of silver nitrate (AgNO3) by measuring out 121. g of silver nitrate…

A: The concentration or molarity of the solution is calculated using the formulaUse the molar mass of…

Q: Electrical energy is measured in kilowatt hours, kWH. A watt is 1 joule per second, a kilowatt is…

A: Killowatt hour is an unit of energy . Energy has another unit, calorie.  Different units can be…

Q: 2. Lead metal can be extracted from a mineral called galena, which contains 86.6% lead by mass. A…

A:

Q: In the United States, car fuel efficiency is expressed in miles per gallon of gasoline. However,…

A: Given : Fuel efficiency in km/L = 11.0 Km/L 1 mile = 1.61 Km…

Q: You are given the length and width of 10.5 in by 8.5 in. Upon weighing, it comes out to be 0.885 g.…

A: Given,Dimensions are 10.5 inch by 8.5 inch.Density is 1.10g/cm3Mass is 0.885 g.Thichkness = ?

Q: The average concentration of dissolved gold in earth's oceans is  5.8 x 10^−9 g/L. of ocean…

A: 6380 μgram of gold are in 1.1x103 m3  of ocean water

Q: Earth's oceans have an average depth of 3800 m, a total area of 3.63 x 10³ km², and an average…

A: Mass is defined as the amount of matter contained in a substance. It is measured in units of gVolume…

Q: Carbon monoxide is a common pollutant in urban environments.On one particular day, the air contains…

A:

Q: Density of an aqueous solution of nitric acid is 1.43 g/mL. If this solutioin contained 36.0% nitric…

A: Given, Density of an aqueous solution of nitric acid = 1.43 g/mL Mass % of nitric acid = 36.0 %…

Q: A chemist prepares a solution of mercury(I) chloride (Hg₂Cl₂) by measuring out 1.96 mg of mercury(I)…

A: The mass of mercury (I) chloride (Hg2Cl2) is 1.96 mg.The volume of the solution is 500. mL.To find…

Q: In water conversation, chemistry spread a thin certain inert materials over the surface of water cut…

A: Given that: Volume of the inert oil, V = 0.10 mL Area for the oil spreading, A = 42.9 m2 First of…

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.