if something only contains Hydrogen and Oxygen. Analysis of a 5.00 g sample of this sample of this compound revealed that the sample contained 4.44 g of Oxygen. How many grams of hydrogen does the sample contain

Q: Most substances are composed of _________ rather than elemental substances

A: Element:  A substance that cannot be broken down into simpler substances by chemical or physical…

Q: A sample of chloroform is found to contain 12.0 g of carbon, 106.4 g of chlorine, and 1.01 g of…

A: Given : Mass of carbon in sample 1 = 12.0 g Mass of chlorine in sample 1 = 106.4 g Mass of hydrogen…

Q: Mg(OH), is a compound. How many different elements are found in this compound? 3.

A: The substance which is formed by one type of atoms are known as element.

Q: In this station, you will find a 100 mL graduated cylinder that contains about 35 mL of water. How…

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Q: Which if the following ionic compounds would contain the most total number of elements? (For…

A: Explanation to the correct answer is given below

Q: How many atoms of copper are in a pure copper penny that weighs 2.15 g? (1 amu = 1.6605 10-24 g)

A: Given that the mass of copper penny is 2.15 g. The number of moles can be calculated using the given…

Q: A 49.8 g sample of water (H2O) contains 5.57 g of hydrogen. What mass of oxygen is contained within…

A: Solution:- 2H2O -> 2H2 + O2       Given data:- 49.8 g sample of water contains 5.57 g of…

Q: A molecule has a mass of 4.65 x 10^-23 g. Provide two possible chemical formulas for such a…

A: Given  mass of 1 molecule = 4.65 x 10-23 g we know  mass of 1 molecule = 1 mole  1 mole = 6.022 x…

Q: In a series of experiments, a chemist prepared three differentcompounds that contain only iodine and…

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

A: Mass of Cu atom = 1.06 × 10-22 g Mass of penny = 2.5 g 1) Mass of 1 mole of Cu atom =? 2) Number of…

Q: Sulfur and fluorine form several different compounds including sulfur hexafluoride and sulfur…

A: Reaction of formation of SF6 is as follows: Mass of Fluorine per gram of Sulphur in Sulfur…

Q: Assume a 1.2 kg sample of a compound contains 0.9 kg of carbon. to one decimal place there are how…

A: Given 1.2 Kg of a compound contains 0.9 Kg of carbon, C.

Q: C The radius of a nickel atom is 125 pm. How many nickel atoms would have to be laid side by side to…

A: We are given : radius of nickel atom (r) = 125 pm distance (d) = 1.11 mm number of nickel atoms (n)…

Q: The radius of a lead atom is 175 pm. How many lead atoms would have to be laid side by side to span…

A: Initially we need to convert Picometer to Millimeter.

Q: Which of the following is not a correct mass of one sodium atom? a) 23 amu b) 23 g c) 3.82x10-23 kg…

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Q: What is the mass of a 12.56L sample of carbon dioxide? A. 17.9 g B. 8.9 g C. 4501 g D. 24.7 g

A: 22.4 L of CO2 = 44g 1L of CO2=44/22.4g 12.56 L of CO2= 44*12.56/22.4 12.56 L of CO2=24.7g

Q: Which of the following gases are elements? O NH, O 0, O N,0 Rn Ar O 0, so, O H,S HCN NO NO, O He

A: Elements are the pure substances that are made up of only one kind of atoms, We are given some list…

Q: What is the edge length (in cmcm) of a titanium cube that contains 2.41×10242.41×1024 titanium…

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Q: A compound contains 43.84 % carbon atoms, 3.65 % hydrogen atoms, and 8.68 % fluorine atoms by mass.…

A: Given : Mass percent of C = 43.84 % Mass percent of H = 3.65 % Mass percent of F = 8.68 % Assuming…

Q: 2. Elizabeth has two separate samples of the same substance. One sample is in the liquid state, and…

A: Elizabeth has two separate samples of same compound and among them one is liquid and one is solid.…

Q: There are 1.699 x 1022 atoms in 1.000 g of chlorine.  Assume that chlorine atoms are spheres of…

A: Number of atoms in 1 g chlorine = 1.699 × 1022 atoms Number of atoms in 0.5 g chlorine = 0.5 × 1.699…

Q: Which is a compound? A. A piece of pure zinc metal B. A molecule made of nitrogen and oxygen C. An…

A: Compound: A molecule consisting of two different elements is called compound

Q: Chemists have determined that 18.0 g of water consists of 6.02 x 10 23 molecules. Determine the…

A: Given, 18 g of water consists of 6.02 x 1023 molecules. Container = 1 quart = 946.35 g

Q: Analysis of a 20.0 g sample of pure carbon dioxide shows that it contains 5.46 g of carbon. How many…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: . Investigate the history of the discovery of chemical elements. What was the most recent element to…

A: History of the discovery of chemical elements: The discovery of the 118 chemical elements known to…

Q: A sample of chloroform is found to contain 12.0 g of carbon, 106.4 g of chlorine, and 1.01 g of…

A: According to law of constant proportional, any chemical compound will always contain the elements in…

Q: Pure gold is usually too soft for jewelry, so it is often alloyed with other metals. How many gold…

A:

Q: A sample of ammonia has a mass of 96.3 g. How many molecules are in this sample? A. 5.65 molecules…

A: One mole of any substance consists of 6.022×1023 molecules. The number of moles of a substance can…

Q: - Compare Two compounds that contain copper and chlorine have the following masses: Compound A:…

A:

Q: Analysis of 24.1 g of calcium oxide revealed that it contained 17.2 g of calcium. What mass of this…

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Q: A sample of chloroform is found to contain 12.0 g of carbon, 106.4 g of chlorine, and 1.01 g of…

A: According to the law of multiple proportions two or more elements are combined to form a compound in…

Q: Determine the mass in grams of 7.75 x 1021 atoms of carbon. (The mass of one mole of carbon is 12.01…

A: Given,the mass of one mole of carbon = 12.01 gNumber of carbon atoms = 7.75×1021 atomsHere, we are…

Q: A sample of H2SO4 contains 2.02 g of hydrogen, 32.07 g of sulfur, and 64.00 g of oxygen. How many…

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Q: If a compound is made up of carbon and hydrogen only, what is the mass of its sample that contains…

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Q: When working in the lab, I take the mass of a sample of ammonium (NH3) and I find it to have a mass…

A: The mass of ammonia is = 45.74 g The mass of nitrogen is =? The mass of hydrogen is =?

Q: How do the molecules of a compound differ from the moleculesof an element?

A: Molecules are group of atoms where the atoms are held together by a chemical bond. They can result…

Q: Which methods separate a mixture according to the size of the particles? distillation and…

A: Given: To identify the methods which separate the mixture based on the size of the particles.

Q: Which sample contains the greatest number of atoms?a) 14 g C                  b) 49 g Cr…

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Q: A chemical formula that shows the actual # and kinds of atoms present in one molecule of a compound…

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Q: What contribution did John Dalton make to atomic theory? * He discovered that every atom was…

A: Answer John Dolton atomic theory  :- All matter element,…

Q: Determine the number of atoms in each sample: a. 45 g Si b. 45 g Sn c. 28.2 mg Pb

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: A 12.29 g sample of NaBr contains 22.34% Na by mass. Considering the law of constant composition…

A: The law of definite proportion states that a given chemical compound always contains its component…

Q: A compound of copper and sulfur contains  94.16 g  of metal and  47.01 g  of nonmetal. How many…

A: Here metal is copper and non metal is sulphur.  The mass percent of copper and sulphur are…

Q: The mass of a single aluminum atom is 4.48×1023 grams. How many aluminum atoms would there be in 185…

A: Given that, The mass of a single aluminum atom is 4.48×10-23grams = (4.48×10-23×103)milligrams =…

Q: 6C6H1206 How many total atoms of oxygen are present in the molecules represented here? ) A) 6. B) 12…

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Q: Explain in your own words, by writing a short paragraph, how the atomic theory predicts the law of…

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Q: Palladium forms three different compounds with sulfur. The mass of sulfur per gram of palladium in…

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Q: Use what you have just learned about chemical formulas to identify the following as element (atomic…

A: The atoms , molecules, compounds and mixtures are as follows.

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.