Does each sample have a measurable mass? Prove your answer by explaining how you will measure the mass of each sample

Q: An alloy contains 78.7% zinc by mass. If a sample has a total mass of 230 grams, how many grams of…

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Q: How many significant figures are in each number?

A: Given :- A)  0.1 s B)  108,700 km  To calculate :-  Number of significant figures in each number

Q: The mass of 4.375 x 1016 molecules of compound with the molecular formula C3H9N is ______ g. Report…

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Q: . While cleaning your attic, you found your old rock collection. If 83.58% of the rocks have a mass…

A: well, it is given that, the weight of percent of rock. hence we can calculate the average weight of…

Q: Calculate the number of grams of AICI3 in 1.25 miles of AICI3.

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Q: complete the percent by mass of each element in the compound to one decimal.  a. C12H22O11 b. K2CrO4…

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Q: 3. Imagine you performed this experiment at your own benchtop. You work hard to collect the data in…

A: Scientific measurements include the process in which various numbers are assigned to represent real…

Q: Katie heats her hydrate to remove the water and obtain the anhydrous cobalt (II) compound CoCl2. Her…

A: Molar mass of H2O is 18.02 g/mol. Molar mass of CoCl2 is 129.84 g/mol. Mass of water removed can be…

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: A person could count gold atoms as converting lead to gold. They counted very fast and counted 1000…

A: According to the question , number of gold atoms counted in 1 sec = 1000 gold atoms…

Q: a) How many grams of Ca, how many of C and how many of O are contained in 20g of calcium carbonate?…

A: The form of ratios that are used to calculate the quantities of reactants or products in a chemical…

Q: In the image below, you will see four laboratory spectra for known elements as well as the sample…

A: To determine the chemical composition of unknown, we would check the spectral lines and use the…

Q: The following prompt will be used to answer the fırst six questions. An experiment was performed to…

A: Significant number: The non-zero digits are all significant. Among non-zero digits, there are large…

Q: How many grams of oxygen (O) are present in a 6.41 g sample of potassium nitrate (KNO3)? Enter your…

A: Potassium nitrate (KNO3) is ionic compound and it contains one potassium, one nitrogen and three…

Q: Calculate the mass percent composition of each of the following Part A. 6.00 g of Si and 5.55 g of O…

A: Mass percentage can be calculated using the following formula: mass percent=masstotal mass×100

Q: Copper has two naturally occurring isotopes, Cu (isotopic mass 62.9296 amu) and 5 Cu (isotopic mass…

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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…

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Q: A. First let's imagine the macroscopic pictures of the 4 test tubes each containing a sample of one…

A: Let the four test tubes represent as: A:ChlorineB:FluorineC:BromineD:Iodine

Q: 3. Is object E or object F more dense? [Assume the particles are uniformly distributed throughout…

A: Density of a substance is defined as the ratio of mass and volume. Density = Mass / Volume

Q: In the compound CGH1303, what percent by mass is hydrogen? In Na2CO3, what percent (by mass) is C?…

A: Three different questions about finding the percent composition of individual elements in a…

Q: Based on the evidence, what metal are pennies mostly made of, and what metal are dimes mostly made…

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Q: Given the data and information in the prompt, how many sig figs is the percent of sugar in the…

A: Significant figures of a number in positional notation are digits in the number that are reliable…

Q: help please answer in text form with proper workings and explanation for each and every part and…

A: 1. Determine the recommended daily allowance (RDA) of iron in the US. Since RDS depends on many…

Q: ite the term used for a certain number of things. (If u don't know, look it up!) An example is shown…

A: 1) 1 dozen mice 2) 1.083 dozen 3) 1.67 dozen Kangaroo  4) 5.02×10^22 dozen water molecules.  5) 272…

Q: A copper atom has a mass of 1.06 x 10 -22 g and a penny has a mass of 2.5 g. Use this information to…

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Q: The following prompt will be used to answer the fırst six questions. An experiment was performed to…

A: Given: Mass of mixture is 20.100 g. Mass of initial filter paper 21.206 g. Mass of filter paper and…

Q: What is the mass percent of phosphorus in P5O2?

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Q: The following prompt will be used to answer the first six questions. An experiment was performed to…

A: Given :

Q: b. U.00004042 fng 4.042 x 10-5 mg Which sample of element is heavier? Show appropriate calculations…

A: Given: The moles of N2 = 2 moles. The moles of Fe = 1 mol. The moles of F2  = 1.5 moles.

Q: What is the mass of 1 carbon atom in grams?  What is the mass of one dozen carbon atoms in grams?…

A: The number of moles can be calculated as- n=mMm=n×M where n: number of moles of the atom m: the mass…

Q: -23 An oxygen atom has a mass of 2.66 × 10 g and a glass of water has a mass of 0.050 kg. Use this…

A: Given mass of an oxygen atom = 2.66 × 10–23 g  And, mas of the glass water = 0.050 kg

Q: determined. Use the following data to perform this calculation for copper (II) sulfate. Mass of…

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

Q: 66.40g CCl4 in molecules 43.29kg NAHCO3 in formula units 3.27x10^4g Na3PO4 in formula units…

A: The concept of Avogadro's number is used here. It says that 1 mole of any substance is equal to…

Q: O final the average must and the standard deviation of the empty vial Lilleanse, find the average…

A: Since you have asked multiple questions, we will solve first one for you. For remaining questions,…

Q: INTERACTIVE EXAMPLE The Average Mass of an Element = When a sample of natural silver is vaporized…

A: Step 1: Step 2: Step 3: Step 4:

Q: what is meant by "mass by difference" how do you do it?

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Q: The compound PClx contains 85.14% chlorine by mass. What is the value of x? Enter your response as a…

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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…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.