Data: year year of Pennies # of pennies weighed Totall mass (9) Average mass 2000 2000 50 24519649 122.59829 150.00819 2.500135g 1998/1998 2003 2003 60 55 137.49549 2.4999163649

Q: 1. Density of solids by volume displacement| Solid Copper Сopper Glass Iron Aluminum Form Wire…

A:

Q: Thank you, but why was 0.0135 multiplied by 2?

A: Answer: For most of the reaction on increasing the temperature rate of reaction increases because…

Q: B. Calculate the following information. USE THE FACTOR-LABEL METHOD TO DO YOUR CALCULATIONS!!! 1. A…

A: The density of a solution is calculated by the formula: Density=MassVolume   Note: Since you have…

Q: The boiling point of a liquid is found to be 302 K. What is this temperature on the Celsius and…

A: Given- Boiling point of the liquid = 302K To find - 1) Temperature in °C 2) Temperature in °F…

Q: Make a graph of the average mass vs. year. Make sure axes are labeled.

A:

Q: How many sig figs are in the following numbers

A: All non-zeros are significant  Leading zeros are non-significant whereas trailing zeros are…

Q: You made a 36.6 g sample of a compound made of carbon and oxygen. You know that 10.0 g of carbon…

A: Number of moles = Mass/Molar mass

Q: what's the difference between natural law and a theory?

A: The difference between the natural law and a theory with aspects to chemistry is explained in next…

Q: express each of the following values in the given base unit. .......... s = 316 Ms

A: Use the conversion unit,1 sec = 1000 millisecondsAfter conversion, make sure to round it off to 4…

Q: In Express your answer as an integer. N=                              Electrons    Ca Express your…

A: In Neutral atom, number of electrons are always equivalent to atomic number of that atom.

Q: Chem 105 Online Density of Metal Stacked Metal Coins 1. Obtain the mass of 5 coins of the same…

A:

Q: Given 735 g of carbon; what volume will carbon occupy assuming it has a density of 3.5 m/L. What is…

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Q: For the image attached Make a graph of the average mass vs year. Please label y and x axes

A: The graph to be plotted is Average Mass Versus Year.  Hence we have to take "Average Mass" on…

Q: Use the data below to determine the mmoles of sodium oxalate to 2 decimal places. (MM sodium oxalate…

A: Given : mass of sodium oxalate = 0.093 g             MM of sodium oxalate = 134 g/mol  Tip : moles =…

Q: What does the term "inversely proportional" mean?

A: There are two type of relation, directly proportional or inversely proportional.

Q: 2. Direct measurement of solid density Glass Сopper Wire Solid Beads Form 0.597cm Diameter:…

A: Copper wire is looks like cylindrical shape. Therefore, Volume of copper wire = 3.14×(D/2)2(L) Where…

Q: Determine the velocity of an electron that has 3.41 x 10-21 joules of kinetic energy. The mass of an…

A: Answer:Kinetic energy of a particle is:Here:

Q: A radioactive substance decays according to A = Age-0.0049, where Ao is the initial amount and it is…

A:

Q: 0.01061:0.00944 Find the ratio

A: We have given that                            0.01061 : 0.00944

Q: 4. Calculate the error and percent error of a sample of water using the following data: the actual…

A: we know ,  Error = Experimental  Value-theoretical Valuetheoretical Value    Given ,…

Q: Which of the structures below better matches the provided 13C-NMR spectrum? 200 180 160 140 120 20…

A: The NMR spectroscopy is an important tool for the determination of the structure of an organic…

Q: Make a graph of the average mass vs. year. Make sure axes are labeled.

A: For the given data, we have to plot the graph of average mass vs year.

Q: 3. Question: Chapter: 1 Lesson: 8 What is the answer to the calculation below to the correct number…

A: Since,e We know that, Lowest significant digit present in the given questions is also a part of…

Q: A quantity of substance that can be seen would be considered the A level.

A: The complete sentence is: "A quantity of substance that can be seen would be considered the…

Q: the mass of a piece of Zn having a volume of 4.56 cm3 is ________g.

A:

Q: So Why are counting words used instead of the numbers they represent?

A: Counting words like pairs, dozen, ream, or gross are used due to the below advantages or…

Q: 192.14g/mol rounder to the significant figures

A: The no. of significant digits or figures in an experimental or theoretical value indicates the…

Q: 14. A student determined the density of air (STP conditions) to be 1.19 grams/Litre. If the…

A: Given, calculated density (experimetal value) = 1.19 grams/litre theoretical density value = 1.29…

Q: if the density of an element 1.5 g/ml with volume 1.8 L, its mass will be .. 2700 O 2.7 O 1200 1.2…

A: Given question is asking about the mass of substance, if density and volume of solution is present .…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".