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

Q: Calculate the number of moles in each sample. a. 72.5 g CCI4 c. 25.2 kg C2H2 b. 12.4 g C12H22011 d.…

A: The number of moles of a substance is calculated by dividing the given mass of that substance with…

Q: The use of freons is being phased out because of the damage these compounds do to the stratospheric…

A: a.

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: An analytical chemist measures the amount of Elements E₁ and E₂ in four samples of an unknown…

A: Pure substance:-  The substance in which the ratio of each element mass is constant for all randomly…

Q: Find the mass of 1 molecule of NaH in gram. O a. 3.98 x10-23 O b. 12 O c. 23.99 O d. 3.98 x1023

A: Molar mass amount(1 mole) of any compound contains Avogadro number6.022×1023 of molecules. Molar…

Q: In a lab experiment, 5.66 g of Mg reacts with sulfur to form 13.13 g of magnesium sulfide. How much…

A: From data find the how much magnesium sulfide would be formed if 5.66 g of Mg were reacted with…

Q: Which of the following statements is not correct? A. 12.01 g of C contains 6.022 x 1023 atoms of C…

A: 1 mol of any substance contains Avogadro's number of particles (atom/ion/molecule etc.). Avogadro's…

Q: Calculate the total number of N atoms in 23.8 g N2O5. O 2.65 x 1023 total N atoms O 9.31 x1023 total…

A:

Q: An analytical chemist measures the amount of Elements E, and E₂ in four samples of an unknown…

A:

Q: 8. KI 9. NaCI 10. Mg Cl2 11. Na;N

A: 8) KI : In the compound we have metal cation K+ from s block and I- anion. Since in the naming of…

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: Chloroform, CHC13, reacts with chlorine, C12, to form carbon tetrachloride, CO14, and hydrogen.1…

A: Molar mass of CHCl3 - 119.5 g/mol Molar mass of Cl2 - 71 g/mol Molar mass of CCl4 - 154 g/mol Given,…

Q: 3. How many grams of oxygen are in 55.5 g of Fe₂O3? A. 16.6 g B. 5.57 g C. 1.86 g D. 15.3 g E. 138 g

A: The mass of the compound is 55.5 g.The chemical formula of the compound is Fe2O3.To find the grams…

Q: 6. How many oxygen atoms are in 225 g oxygen gas? a. 4.23 x 104 C. 8.47 x 10:+ b. 6.84 x 10²4 d.…

A: The Given amount of oxygen gas O2 = 225 grams        the molar mass of O2 = 32 g/mol To calculate…

Q: 24. The total number of sodium atoms in 46.0 grams of sodium is A. 3.01 x 1023 atoms B. 6.02 x 1023…

A:

Q: Name the elements contained in the following compounds.a. sodium chloride (NaCl)    c. ethanol (C 2H…

A: The name of the elements in the given compounds has to be given,

Q: d. Cl2 FeCla Br е. SO3 H,SO4

A:

Q: A 1980 penny has a mass of 3.025 g and is 85.0% copper. What is the mass of copper in the coin? A)…

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Q: a Br e OCH3

A:

Q: How many atoms Na are in 1.4 g of Na?     a. 3.7 x 1022 atoms Na   b. 1.0 x 10 -25 atoms Na…

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Q: A dietary supplement for calcium contains 600 mg of CaCO3 per tablet. How many grams of calcium are…

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

A: The symbol for iron is Fe The symbol for oxygen is O The molar mass of Fe is 55.85g/mol The molar…

Q: 3. A Chemistry 11 student tries to explain that based on the ratio of the reactants in the reaction…

A: Given reaction is Ca(s) + F2(g) → CaF2(s) To explain that the statement of student is wrong.

Q: i. C₁7H36 plus oxygen gas j. magnesium metal plus silver nitrate

A: C17H36 (Heptadecane) this is an alkane.  Alkane and O2 react and produce CO2 (carbon dioxide ) and…

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: 1. A. What is the mass in grams of atoms of strontium? grams B. How many strontium atoms are there…

A: We have to apply mole concept

Q: 1. 2 moles of Ar atoms contain how many atoms?           A.   1        B.   1.204 x 1024…

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

Q: How to solve number 1 step by step

A: mass of chlorine reacted during the reaction= 8.178-6.867                  = 1.311g  Atomic Mass of…

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

A:

Q: Calculate the mass of one bromine atom. a. 6.022 x 1023 g O b.4 812 x 1025g O c. 1.327 × 10-22 g O…

A: Atomic mass is defined as the quantity of matter that is present in an atom of element.

Q: 12. A solid compound has a mass of 43.25 g. You scrape 2.5 g of the material off of the solid for…

A: Mass of compound = 43.25 g Mass of compound scraped = 2.5 g

Q: . What is the mass, in grams, of each of the following? a. 2.3*10^-3 mol Sb b. 3.59*10^-2 mol Ba…

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

Q: 1. A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt…

A: a. Given that weight of hydrated salt is 6.790 g and mass of anhydrous salt is found to be 4.501 g.…

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

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Q: Find the mass of 1 molecule of Li H in gram. a. 7.949 b. 1.32 x1023 С. 4 d. 1.32 x10-23

A:

Q: the amount o

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any…

Q: What is the mass of C12H22O11 in a bottle of 3.5 M C12H22O11? a. 1795.5 g b. 1765.5 g c. 1745.4 g…

A:

Q: How many gold (Au) atoms are there in a 10. g sample of that is 50% Au by mass?  a. 6.2 x 1022 b.…

A:

Q: If 21.4 g of aluminum is reacted with 91.3 g of Fe2O3, the prodücts will be Al2O3 and iron. What…

A: Limiting reagent: In a chemical reaction, the reagent that totally consumed is known as a limiting…

Q: . The Law of Conservation of Mass proves that A. the number of atoms in a chemical reaction does…

A: Given: Law of conservation of mass.

Q: Find the mass of 1 molecule of NaH  in gram. a. 12 b. 3.98 x10-23 c. 23.99 d. 3.98 x1023

A:

Q: 2.09 mol - x 2.70 L = 0 mol L 502.8 mol 0.45 L = 0 78.1 mol L mol L x 83. L = mol

A: During multiplication and division, the final answer should have the fewest number of significant…

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

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Q: Let’s put the above values into the formula: V1 = 8.00 mol.L-1 × 2.42 L13.0 mol.L-1V1 = 8.00…

A: The dilution equation is expressed as C1×V1=C2×V2On rearranging the above equation to get V1…

Q: An analytical chemist measures the amount of Elements E₁ and E₂ in four samples of an unknown…

A: Since the unknown substance, X contains elements E1 and E2, it can be either a compound of E1 and…

Q: A sample of ammonia (NH3) has a mass of 84.7 g. How many molecules are in this sample?

A:

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.