Bernard weighs a jar of pennies to find out how much they are worth. After subtracting the weight of the empty jar, he finds that the pennies have a total mass of 8.57 +/- 0.17 kg. Assuming that each penny weights 2.5 g, and taking into account the uncertainty of the measurement, what is the minimum value of the pennies (expressed in dollars)?

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: State the rules governing the use of significant figures in Adding/subtracting measurements.  How…

A: Significant figures are the digits having a meaning in a given number. The number of decimal places…

Q: When 33.911 is added to 82.649, the result should be reported with digit(s) after the decimal point.…

A: While subtraction or addition, the number of decimal places in the result are same as the…

Q: student gently drops an object weighing 15.8 g into an open vessel that is full of ethanol. A volume…

A: The volume of ethanol displaced from the vessel is equal to the volume of the pject. Let, the volume…

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

A: Given:

Q: Bernard weighs a jar of pennies to find out how much they are worth. After subtracting the weight of…

A: The maximum weight of the pennies is equal to 9.4 + 0.16 kg = 9.56 kg. One kilogram is equal to 1000…

Q: A brick of metal has these dimensions:  7.07 in  x 9.20 in x 7.15 in.  It has mass 8.1 kg.  What is…

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 rectangular foil has a length of 0.0705m, and a width of 53 mm. Calculate the height of this…

A:

Q: Your calculator gives you the number 1761.2868 as the volume (in cm^ 3) of a box 2.0 ft by 6.5 cm by…

A: When rounding off the result of a multiplication, the number of significant figures in the final…

Q: A flask containing 9.55 mL of a liquid weighs 157.2 g with the liquid in the flask and 148.4 g when…

A: Given: Weight of liquid containing flask=157.2 g Weight of empty flask= 148.4 g  Volume of the…

Q: An empty sample bottle that weighs 27.32 g has a capacity of 19.58 mL. A piece of metal is placed…

A: Given: Mass of empty bottle = 27.32 g Volume of empty bottle = 19.58 mL Mass of empty bottle and…

Q: Suppose you measure out 2.56 x 1024 molecules of water on the balance. If the cup containing the…

A:

Q: What is the density of mercury in grams per millilitre?

A: Given :- mass = 28.4 lb                volume = 1 qt  To calculate :- density of mercury (in g/mL)

Q: Perform the following computations, and retain only significant figures in the results:  56.824 /…

A: While performing multiplication or division, the answer should contain as many significant figures…

Q: The density of cobalt metal is 4.51 g/em'. Calculate the volume (in cm') of a piece of cobalt…

A: Density is a physical property of matter that is defined as the mass of an object per unit of…

Q: Imagine that have a cube of iron metal that you know has a mass of exactly 1.0000 grams because the…

A: Exact Mass of the cube of iron metal = 1.0000 grams The observed value of the cube has a mass of…

Q: A cubic box is completely filled with 1,331 g of water. What is the length of one side of the box,…

A: Given : the mass of water = 1331 g We know, The density of water  = 1.0 g/cm3 The formula for…

Q: A sample of liquid rocket fuel is stored in a sphere-shaped fuel tank that has an inner diameter of…

A: Solution Light metals have high heat unharness, creating them enticing as fuels or fuel elements. As…

Q: The density of copper is 8.97 g/cm^3. What is the volume, in mL, of a 1.00 kilogram mass of pure…

A: 1.00 kg of copper is equal to 1000.0 g of copper. And 1 mL is equal to 1 cm3.

Q: A flask is found to have a mass of 115.35 g. A liquid is added to a buret, and the initial…

A: Given,Mass of the flask = 115.35 gMass of the flask and liquid = 141.10 gInitial volume of liquid in…

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: hardware salesman measures the mass of a box containing  1000  washers.  The mass is  0.7222   kg…

A: We know from the unit conversion in chemistry, to measure small amount we generally used mg,…

Q: A 76.00 pound flask of mercury costs $128.50. The density of mercury is 13.534 g/cm^3. Find the…

A:

Q: Suppose that the initial reading of the buret is 0.05 mL and the final reading is 17.88 mL and the…

A:

Q: Bernard weighs a jar of pennies to find out how much they are worth. After subtracting the weight of…

A: Given: Total mass of pennies = 12.33 +/- 0.09 kg Weight of each penny = 2.5 g

Q: The density of raw milk depends on its composition and temperature, but (although literature data…

A: The objective of the question is to express the density of the milk in pounds per cube inch.

Q: An empty beaker weighs 39.81 g. When completely filled with water, the beaker and its contents have…

A: Given:  The mass of an empty beaker = 39.81 g The mass of the beaker when it is completely filled…

Q: 11.004g + 3.08g x 112.96g= I don't understand how to start this problem when there is not…

A: The dimensional analysis does not allow physical quantities with different units to be added or…

Q: A certain person had a brain that weighed 1.35 kg and contained 2.65 x 10¹0 cells. Assuming that…

A: The length of one side of the cell can be calculated from the volume of one cell.To determine volume…

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

A: To convert 90 kg.m/s to g.m/s.

Q: A student is trying to determine the identity of a metal. The student measured the mass of the metal…

A:

Q: show how to determine and then calculate the volume in both mL and in^3 of 0.325 lbs. of mercury.…

A: density is measurement of compactness or crowdedness. It is calculated by using formula,density =…

Q: A chemist weighs herself on a scale and records a mass of 65.1 kg. She removes a calculator and…

A: Given : Mass of chemist with calculator = 65.1 Kg = 65.1 X 103 g                   (Since 1 Kg =…

Q: A student wants to determine the density of a metal object. They weigh it and find that its mass is…

A:

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.