This is the chemical formula for cassiterite (tin ore): SnO, A geochemist has determined by measurements that there are 7.24 moles of tin in a sampie of cassiterite. How many moles of oxygen are in the sample? Be sure your answer has the correct number of significant digits.

Q: mass

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Q: What is the maximum mass of pure titanium that could be extracted from 80.0 g of ilmenite , a…

A: The objective of this question is to calculate the maximum mass of pure titanium that can be…

Q: This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel…

A: Number of moles of Ni(CO)4 = 2.9 molesNumber of moles of carbon (C) = ?

Q: Calculate the number of nitrogen atoms in a 120.0 g sample of dinitrogen tetroxide (N,04). Be sure…

A: Mass of nitrogen dioxide (N2O4) = 120.0 g  Number of nitrogen atoms = ?

Q: What is the maximum mass of pure iron that could be extracted from 80.0g  of hematite, a iron ore…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: Dimensional analysis & conversions. If you need scientific notation in you answer, copy this for the…

A: Given, mass of Sn(OH)2 = 10.44 g mass of tin (Sn) = ? Note:  Molar mass of Sn(OH)2 = 152.73 g/mol…

Q: A sample of oxygen contains 7.1 x 1020 atoms. How many moles are in this sample? Your answer should…

A: One mole of a substance contains 6.022×1023 particles(atoms/ions/molecules).In this problem,we've to…

Q: You add 297 grams of NaCl to a container and then you add 898 grams of water to that same container.…

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Q: (CH₂(CH₂) CH3) reacts with gaseous oxygen gas (0₂) to produce gaseous carbon dioxide (CO₂) and…

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Q: How many atoms of hydrogen are in 2.22E1 g of methane?   Respond with the correct number of…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel…

A: Solution - According to the question - Given - Mole of Ni(CO)4 = 34 moles Mole of oxygen in 1 mole…

Q: What is the mass of 2.38 moles of AgNO 3 ^ prime ? Write your answer to 2 decimal places and include…

A: Given Number of miles of AgNO3 = 2.38 moles Mass of AgNO3= ?

Q: Calculate the number of oxygen atoms in a 150.0 g sample of dinitrogen tetroxide (N₂O4). Be sure…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

Q: Calculate the number of oxygen atoms in a 100.0 g sample of vanadium(V) oxide (V,O,). Be sure your…

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Q: Calculate the number of iron atoms in a 150.0 g sample of iron(III) oxide (Fe₂O3). Be sure your…

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Q: high-performance heater that burns propane, C3H8(g), is adjusted so that 100.0 g of O2(g) enters the…

A: .According to the question, high-performance heater that burns propane, C3H8(g), is adjusted so that…

Q: The chemical formula for lithium fluoride is LiF A chemist determined by measurements that 0.0350…

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Q: Ammonium perchlorate  NH4ClO4 is the solid rocket fuel used by the U.S. Space Shuttle. It reacts…

A: The balanced chemical reaction is given below.

Q: Calculate the number of nitrogen atoms in a 50.0 g sample of dinitrogen tetroxide (N₂04). Be sure…

A: The number of molecules or atoms present in the one mole of the substance is equal to the Avogadro…

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg;(Si,Og),(OH), An…

A: The molecule of Mg3(Si2O5)2 (OH)2 contain  3mol of Mg and 12 mol of O

Q: Calculate the number of hydrogen atoms in a 140.0 g sample of tetraborane (B,H0). Be sure your…

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Q: The chemical formula for propane is: CH;CH,CH3 Calculate the molar mass of propane. Round your…

A: A chemical compound is formed when two or more elements are combined together and the molar mass of…

Q: Green plants use light from the Sun to drive photosynthesis, a chemical reaction in which liquid…

A: Given, moles of CO2 = 0.065 molThe chemical reaction of photosynthesis can be written as:6 CO2 + 6…

Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE):…

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Q: Now let's suppose it's your turn to be the professor. You want to write a question for your students…

A: Since we want the unknown to be toluene  Hence the data (pressure, temperature and volume) should be…

Q: A chemist measures the amount of bromine liquid produced during an experiment. She finds that 2.3 g…

A: Given :- mass of bromine liquid produced = 2.3 g  To calculate :-  Number of moles of bromine liquid…

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

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Q: Calculate the number of oxygen atoms in a 150.0 g sample of dinitrogen tetroxide (N,04). Be sure…

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Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: In the past, laughing gas, N20, was given to patients before medical procedures because it slows…

A: In order to calculate number moles we need to calculate molar mass of NO2

Q: Calculate the number of oxygen atoms in a 150.0 g sample of scheelite (CaWO4). Be sure your answer…

A: Number of Oxygen atom in 150g CaWO4 can be calculated as follows

Q: The chemical formula for hydrogen bromide is HBr. A chemist measured the amount of hydrogen bromide…

A: Here mass of hydrogen bromide (HBr) is given. We have to convert mass to number of moles. Mass and…

Q: A chemist measures the amount of iodine solid produced during an experiment. He finds that 3.02 g of…

A: Please find your solution below : Mole is a unit used to measure amount of a substance. The number…

Q: Calculate the number of boron atoms in a 50.0g sample of tetraborane B4H10.   Be sure your answer…

A: Given that,  Weight of tetraborane, B4H10 = 50.0 g Molar mass of tetraborane, B4H10 = 53.32 g Moles…

Q: 21.1 g O2 20.5 g C8H10 Express the answers in molecules to three significant figures

A: Given data 21.1 g O2 20.5 g C8H10 The number of molecules present in the given species are

Q: Calculate the number of atoms in a 2.17 x 105 mole sample of neon. Your answer should be rounded to…

A: Number of moles of a substance is equal to the mass of the substance divided by its molar mass.

Q: Ammonium phosophate ((NH4)3PO4) is an important ingredient in many solid fertilizers . It can be…

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Q: How many atoms of fluorine are in 1.1E0 moles of CF4? Respond with the correct number of significant…

A: Given, The number of atoms of fluorine are in 1.1E0 moles of CF4 is :

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.