What is the mass of a 12.56L sample of carbon dioxide? O A. 17.9 g о В. 8.9 g O C. 4501 g O D. 24.7 g

Q: Convert the mass of zinc in the data table into moles of zinc using the atomic mass of zinc. Data…

A: We have given that  Mass of of zinc = 0.55g Molar mass of Zinc = 65.38g/mole  No of mole = Given…

Q: 1. Calculate the mass in grams of a single oxygen molecule, 02.

A: Molar mass of O2 is 32.0 g/mol  We have to calculate here mass of 1 molecule of oxygen i.e. O2

Q: a. What is the mass of 1.49 x 1024 atoms of chlorine? grams b. What is the mass of 9.12 x 1023…

A: a) mass of 1.49×1024 atoms of chlorine.

Q: sample

A:

Q: A 2.00 g sample of an organic compound contains 0.675 g of carbon. How much carbon would a 4.00 g…

A: ◼️ Given that:  2.00 g of organic sample has 0.675 g Carbon  Carbon in 4.00 g of same organic…

Q: A sample of carbon dioxide is analyzed and determined to be 27.3% by mass carbon. If a 50.0 g sample…

A: Consider a compound AB  Percent of A = (Mass of A/Mass of AB) x 100  Law of conservation of mass:…

Q: 3. A sample of sugar, C.H12O6, has a mass of 90.0 g. It has the same number of molecules as A) 45 g…

A:

Q: The reaction of sulfur powder (S8) with oxygen gas (O2) results in the formation of one of many new…

A: We know that, molar mass of O = 15.999 g/mol molae mass of S = 32.065 g/mol

Q: 1.The combustion of ammonia in the presence of excets oxygen yields NO, and H20: 4 NH3 (g) + 7 02…

A: 1) Given that : Mass of ammonia = 174 g Mass of oxygen consumed = ?

Q: A student heated calcium carbonate (CaCO3) producing calcium oxide (CaO) and carbon dioxide (CO2).…

A: The Law of Conservation of Mass is that mass is neither created nor destroyed in chemical reactions.…

Q: What is the average mass (in grams) of a single nitrogen dioxide molecule? A. 3.6 x 10-26 g B. 2.77…

A: Since mass of 1 molecule  = molar mass / Avogadro's number Molar mass of Nitrogen dioxide (NO2) = 14…

Q: 23. a. Calculate the average mass in grams of an individual atom of silver. b. Calculate the mass in…

A: 1 mole Ag atoms = 6.023 × 1023 Ag atoms. mass = mole X molar mass for elements, atomic mass = molar…

Q: A compound of hydrogen and carbon is 92.3% carbon, If 40 g of hydrogen is reacted with 135 g of…

A: Molecular mass is the sum of the masses of all the atoms in a given molecule. Percentage composition…

Q: An experiment was performed in lab to produce 10.3 grams of Ca(OH)2, however the calculations…

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Q: The element rhenium (Re) has two naturally occurring isotopes, 185 Re and 187 Re. Rhenium is 62.60%…

A:

Q: You have a 125-g sample of one of these substances. You determine that it is made of 16.7 g H, 75.0…

A: A chemical compound often comprises the same elements in very same compositions by mass, according…

Q: What mass of sulfur dioxide, SO2, would contain the same mass of oxygen as is contained in 33.7g of…

A:

Q: For number 5 to 7, consider the following reaction. The complete combustion of methane, CH., can be…

A: CH4 (g)+ 2O2 (g)-------> CO2 (g)+ 2H2O (g) Number of moles = mass ÷ (molecular mass)

Q: Determine the mass of 0.0146 mol KOH mass = ___ g Determine the mass of 10.2 mol ethane (C2H6)…

A:

Q: How many moles of iron atoms do you have if you have 4.10 x 1023 atoms of iron. (The mass of one…

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Q: In the reaction X + 3 Y 2 Z, the mass of X is 5.0 g and the mass of Z is 14.0 g. If the reaction was…

A:

Q: The percentage of Carbon Dioxide is 273%. How many grams of carbon would there be in 5 grams of…

A: First we will calculate moles of carbon dioxide using the given mass and molar mass of carbon…

Q: 6 What is the mass of 2.0 billion billion atoms of gold? (1 billion is 1 x 10^9, so a billion…

A:

Q: Determine the mass of sodium in 15.5 g of NaNO3.   a. 17.4 g   b. 0.298 g   c. 4.19 g   d.…

A: Given that,mass of NaNO3 = 15.5 g Molar mass of NaNO3 = 84.9947 g/mol moles of NaNO3 = (mass of…

Q: 4. You have two samples of KI. You measured the amount of K and I in one sample. You were only able…

A: #4:(a): Actually we have to find how much of K was in the second sample, not Cl. In order to find K…

Q: When 0.210 g of iron (atomic weight = 55.85 g/mol) is burned, 0.341 g of iron oxide is obtained.…

A: Given  Wt. If iron = 0.210 g  Wt. Of iron oxide = 0.341 g  Atomic weight of iron = 55.85 g/mol…

Q: What is the mass of 3.75 moles of Silver? O a. 327.5 g O b. 168.64g O c. 405 g O d. 520.9 g

A: given  number of moles =3.75

Q: Calculate the mass of Na in 80.0 g NaCl. A. 31.5 g B. 6.2 g C. 40.0 g D. 1.9 g

A: molar mass of NaCl  =mass of Na +mass of Cl                                   =23+35.5…

Q: 5. Compound X is composed of 52.2% carbon, 13.0% hydrogen, and the rest oxygen, by mass. The…

A: Compound X contain C= 52.2%                                    H= 13%…

Q: 9. Calculate the number of molecules present in 4.29 g of nitrogen dioxide (NO2). Danie192.1 10.…

A: 9. Given data: The mass of nitrogen dioxide is 4.29 g. To find the number of molecules present in…

Q: Which has the greater number of particles, 3.011x1023 N2 molecules or 14.01 g N2 molecules? a.…

A:

Q: In the combustion reaction between propane and oxygen gas, if 44.0 g of propane is burned in 160.0g…

A: According to the Law of Conservation of Mass " the sum of masses of reactants are equal to the sum…

Q: Determine the number of atoms in 53.0 grams of bromine, Br. (The mass of one mole of bromine is…

A:

Q: When copper is heated with an excess of sulfur, Cu 2 S is formed. How many grams of Cu 2 S could be…

A:

Q: A 3.69 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 5.05 x 1022…

A: a.The total number of nitrogen atoms in 3.69g sample of nitrous oxide is calculated as,

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.