From 1967 until 1999, Canadian 10¢ and 25¢ coins were made of pure nickel which has a density of 8.902 g/cm3. Suppose each dime weighed 2.00 g and each quarter weighed 5.00 g. A small collection of dimes and quarters were submerged in 10.00 mL of water in a graduated cylinder causing the water level to rise to the 15.28 mL mark. What was the combined monetary value (in Can$) of those coins? Note that there is a special relationship between the masses of the two types of coins and their monetary values.

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

A:

Q: 1. A 50.00 g sample of a solid is placed into a graduated cylinder and then the cylinder is filled…

A: Given, mass of a sample of solid = 50.00 g            volume of cylinder filled = 100.00 mL…

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: what is the density of the salt in g/mL?

A: Density = mass ÷ volume    Rule for significant figure in division:- Round off final answer as per…

Q: A cube of an unknown metal was dropped in a graduated cylinder containing 45.0mL of water. After the…

A: Given:

Q: A general chemistry student found a chunk of metal in the basement of a friends house. She measured…

A: Density of a metal is specific and constant. Density = mass/volume  1 mL = 1 cm3 Given that: Mass of…

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…

A:

Q: 8. On his birthday, Emilio received a gold nugget as a present from a friend and was curious to…

A: Given -> Weight= 17.24 gm Initial volume= 12.3 ml Final volume= 13.4 ml Density of pure gold =…

Q: A piece of metal that is a cube with sides of 1.66 cm has a mass of 69.000 g.  Calculate the density…

A: TO calculate the density of the metal, first of all we determine the volume of the metal cube.

Q: Draw the structural formula of:   2-methylpenta-1,4-diyne

A: The valancy of carbon can not exceed 4 so the methyl substitution can not be at carbon but it can be…

Q: A chemistry student needs 70.0 g of tetrahydrofuran for an experiment. By consulting the CRC…

A:

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

A:

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: A chemist prepares a solution of sodium nitrate (NANO,) by weighing out 281.1 g of sodium nitrate…

A: Given data, Mass of NaNO3 = 281.1g Volume of solution = 450.0mL

Q: a piece of metal weighing 20.55g was immersed in water in a graduated cylinder, the initial volume…

A:

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: 3. The method of volume displacement can be used to find the volume of a solid. In this measurement,…

A: Given : Mass of silver = 194.3 g Initial volume of water = 242.0 mL Final volume of water (after…

Q: What is the density (g/mL) of an object that has a mass of 0.2182 kg , when placed into a graduated…

A: Solution - Density - Density is a measure of mass per volume. The average density of an object…

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

A:

Q: A piece of metal ore weights 2.00 g. When a student places it into a graduated cylinder containing…

A:

Q: The volume of water in large scale reservoirs is often measured in units of an acre-foot, which is…

A: 1 acre-foot = 43,560 ft³ 1 US liquid gallon = 231 cubic inches 1 US liquid gallon = 3.785 liters 1…

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 rubber stopper had a mass of 5.62g. When the rubber stopper is carefully added to 12.5 mL of water…

A:

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 shattered glass case at the scene of a jewelry store robbery was determined to be made of potash…

A: Density of any substance can be defined as the ratio of the mass of the substance to its volume. It…

Q: A bar of gold with a mass of 2060.5 g has the following dimensions: 7.30 cm by 3.25 cm by 4.50 cm.…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: . Answering the following  a. Which compound will react with HClO4 to cause a neutralization…

A: Answer :

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

A: -> 1 KJ = 1000 J  -> 1 mole = 1000mmole

Q: What is the volume in liters of 5.085 pounds of gold? The density of gold is 1.93 g/cm^3. Express in…

A:

Q: A chemist prepares a solution of nickel(II) chloride (NICI,) by measuring out 1.2x 10 jumol of…

A: Moles of NiCl2=1.2×102 μmol Volume=250 mL

Q: The average micro-nano plastic concentration in bottled water was about 2.4×10^5 particles per liter…

A: micro-nano plastic concentration in bottled water was about 2.4×105 particles per liter.% of…

Q: You can identify a metal using its density. If you have a metal brick that you measured to be 4…

A:

Q: How many miles of HCI are in a sample of HCI with mass of 126g?

A:

Q: A student measured the mass of an empty micropicnometer to be 2.000g. A student places 0.500mL of…

A: Part(a): Given that the mass of micropicnometer = 2.000 g Mass of micropicnometer + citric acid =…

Q: The shattered glass case at the scene of a jewelry store robbery was determined to be made of potash…

A: When a body is immersed in a fluid, it displaces the fluid. Then calculate, --------- (1)

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: A student places 14.8 mL of water in a graduated cylinder.  The mass of the water and the graduated…

A: As the metal pellets are added into the cylinder the volume of the cylinder changes as the metal…

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.