ic & Gases The formula mass of zinc acetate dihydrate, Zn(CH3COO)2• 2H20, is: 338 amu 220. amu 114 amu 184 amu 288 amu TTy Another Verslon 2 Item attempts remalning Submit Anser

Q: (a) 2 Fe+3 Cl2-- 2 FeCla Fe%= Fe%D Cl= Cl= Mass=D Mass=

A: Recall the reaction, 2Fe + 3Cl2 -----> 2FeCl3

Q: * Question Completion Status: Barium oxide was synthesized form the reaction of barium and oxygen in…

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Q: Complete the table. Element Mass Moles Number of Atoms Pt 0.0449 Fe 1.14 x 1025 Ti 23.8 mg Hg 2.05

A: Pt : Mass of Pt = moles x molar mass = 0.0449 x 195 = 8.76 g Number of atoms of Pt = moles x…

Q: H 2A 3A 4A SA 6A 7A He LI Be ƏN 1 0N 3 8 Na Mg 3B 4B 58 6B 7B r 8B - 18 28 AI Si PS CI Ar K Ca Sc…

A: In period as moving from left to right, atomic radius decreases due to decrease in nuclear charge.…

Q: Calculate the mass, in grams, of 882 atoms of cesium, Cs. (molar mass of Cs is 132.91 g)

A: Given  Molar mass of cesium = 132.91 g/ mol  i.e. it is mass of 1 mole of cesium atoms  We know…

Q: A 2.63 g2.63 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

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Q: The mass percent of CO3 in ca(CO3)2 ( atomic mass C= 12, O = 16, Ca = 40) is O 60% O 77.77%) O 50% O…

A: Mass percent can be calculated by the formula given below as; Mass percent=Mass of the…

Q: 5. Aspirin has the formula CyH3O4. How many atoms of oxygen are there in a table weighing 360 mg? a.…

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Q: What quantity in moles of silver atoms do you have if you have 3.94 * 1021 atoms of silver. (The…

A: The given question is related to stoichiometry. In the given question, it has been asked to…

Q: 3)A pure copper sphere has a radius of 0.935 in. How many copper atoms does the sphere contain? The…

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Q: What is the mass percentage of sulfur in butyl mercaptan (C,H10S

A: Given: The compound is butyl mercaptan i.e. C4H10S. Assuming 1 mole of C4H10S.

Q: I mol CCI2F2 = 9CC12F2 9/mol CCI2F2 %3D Listall How MUltiply all then add Atomic Elements %3D → many…

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Q: How many grams of nickel are in a 3.4x10^27 nickel atoms?

A: There are 6.022×1023 atoms in one mole of a substance. Therefore,mass of 6.022×1023 atoms will be…

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: An unknown element X has the following isotopes: 140X (89.00% abundant) and 142X(11.00% abundant).…

A: Since,         Average Atomic mass=Σass of Isotope×% of Isotope100

Q: The ratio of the mass of O to the mass of N in N20z is 12:7. An- other binary compound of nitrogen…

A: The given ratio of mass O to the mass of N in N2O3 is 12:7 Mass of O in N2O3 = 3x16 amu…

Q: An unknown element X has the following isotopes: ¹⁴⁰X (89.00% abundant) and ¹⁴²X(11.00% abundant).…

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Q: Determine the number of atoms of O in 24.1 moles of Al2(SO,)3-

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Q: Fill in the blanks for the 1sr image . For the second image it’s filled in which is an example to…

A: Molar mass of the compounds is equal to the sum of the masses of all the elements.

Q: An atom consists of two isotopes, the first with an atomic mass of 15.8967 amu and the second with…

A: Atomic mass of first Isotope = 15.8967 amu Atomic mass of second Isotope = 16.8245 amu Average mass…

Q: Table 1: Molar masses of common rock forming elements Atomic Mass (amu) 28.09 Element Oxide (1)…

A: We can identify the valency of oxide are as follows Suppose the oxide formula is = MaOb(=2) Here,…

Q: 5.061 g of a hydrated metal sulfate is heated only 2.472 g of anhydrous metal sulfate remains. What…

A: By heating the water is removed from the molecule . From the weight loss we can calculate the…

Q: Calculate the mass, in grams, of 922 atoms of potassium, K (1 mol of K has a mass of 39.10 g).

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

Q: a) How many sulfur atoms are there in 3.8 mol of sulfur? b) How many moles of aluminum do 5.8 X…

A: To get number of atom or molecule from mole number, gram etc, we use Avogadro's number.

Q: 67.) A compound used in the nuclear industry hus the following compositions uranium, l67.411.;…

A: Firstly calculate the moles of the each elements considering hundred gram of the compound.

Q: There are 1.8 x 1024 atoms of chlorine in a sample of magnesium chlorate, Mg(CIO3)2. What is mass of…

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Q: An 85.00 g sample of an unknown compound contains 24.26 g molybdenum, 24.33 g sulfur, and the rest…

A: Given,  Mass of the compound = 85.00 g  Mass of molybdenum = 24.26 g  Mass of sulfur = 24.33 g  Mass…

Q: What is the molar mass of the solid C 6H8 N4 O 4?     2. The following  18  O  -2. How many…

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Q: 7. H₂O + CaO Ca(OH)2 (HINT: Don't forget to multiple the atoms by the number outside their…

A: For balancing the equation, first balance the elements that appear only once on each side of the…

Q: How many Cl atoms are there in 50 g of AIC13 (Molar mass: 133.34 g/mol) ? OA 4.64 x 1026 O B. 5.00 x…

A: Given, Mass of AlCl3 = 50g Molar mass of AlCl3 = 133.34 g/mol Moles of AlCl3 = 50 g133.34 g/mol =…

Q: In 6.9 g of aluminum, there are ______ x 1023 aluminum atoms present

A: Molecular mass of atom contains 6.023 × 10^23 atoms. Molar mass of aluminium is 26.981 g/mol

Q: This is CCl4 with a molecular weight of 119. On a mass basis what percent of the material is…

A: The molecular weight of CHCl3 is 119.38 gmol-1 and that of CCl4 is 153.82 gmol-1 .

Q: .The compound, X₂O₃, contains element X and oxygen atom combined in a ratio of 2.12 grams of X to…

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Q: what Mass or NaN3 L6S mol) is needed to produce (28 9 mol-) ? 1.00 g 2 Na Ng 7Z Na+ 3 N2 a) 1.Ss 9…

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Q: Aluminum bronze is a mixture of 92.0% copper (Cu) and 8.0% aluminum (Al) by mass. What percent of…

A: Given : Mass percent of Al = 8.0 % And mass percent of Cu = 92.0 % Assuming 100 g of mixture. Hence…

Q: How many grams of magnesium are required to produce 3.000 kg of Si? (At mass: Mg=24.31; Si=28.09)…

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Q: tual i bual mass of H,0 19.6517g 0.0136 g 0.0055 g mass of nalt mo las solubilty of salt

A: The density of water is 1.0 g/mL thus, the volume of water in trial 1 and trial 2 is equal to…

Q: 9. How many hydrogen atoms are there in 500.0 L of water? (dH.0 = 1.00 g mL) %3D A: 3.34 x 1025 28

A: Given, the volume of water V =500.0 L =500000 mLdensity of water d =1.00 g .mL-1we are asked to…

Q: How many daL of bromine atoms are in 90 x 1022bromine atoms?  (The density of bromine is 3.1 g/cm3)…

A: To get the answer of this question first we calculate the mass of Br atoms given in the question…

Q: There are 1.8 x 1024 atoms of chlorine chlorate, in a sample of magnesium Mg(CIO3)2. What mass of O…

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Q: 6. Verify the law of conservation of mass by using relative atomic masses for the following chemical…

A: Given reaction is : BaCl2 + H2SO4 ----------> BaSO4 + 2HCl  Verification of law of conservation…

Q: Urea [(NH),CO] is prepared by reacting ammonia with carbon dioxide: 2 NH3 + CO2 (NH),CO() + d. How…

A: According to the law of conversation of mass, mass can neither be created nor be destroyed. So,…

Q: 12. Density if mass is 174 g and volume is 45 cubic/ centimeters?

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.