How many moles are equal to 1.20 x 1024 atoms of sulfur (S)? Round to 2 decimal places.   a 0.20  b 2.00  c 2.00 x 1046  d 7.22 x 1047

Q: Combustion of iron creates iron(III) oxide. How many moles of oxygen are needed to fully convert…

A: Combustion, a chemical reaction between substances, usually including oxygen and usually accompanied…

Q: )2.709 x 10 to the 23rd Ca+2

A: Given,  0.45 moles CaCO3 1 mole CaCO3 contains 1 mole Ca2+ ions.  0.45 moles CaCO3 contains = 0.45…

Q: The number of moles of S in 2.8 x 1024 atoms of S is: 1.0 mole of S atoms 4.6 moles of S atoms 3.1…

A:

Q: How many moles of oxygen are in 6.75 grams of oxygen?     A. 0.42 moles B. 1.60 moles C. 0.21 moles…

A: Given  values are, Mass of oxygen = 6.75 g We know molar mass of oxygen O2 = 31.998g/mol

Q: How many moles of calcium atoms do you have if you have 4.06 x10^21 atoms of calcium.

A: Given : Number of atom of calcium = 4.06 x10^21   Avogadro's Number = 6.023 × 10^23   Finds :…

Q: 2. A compound composed of carbon and hydrogen with the formula CxHy was burned. The balanced…

A: The reaction is,  2CxHy +13O2--->8CO2 + 10 H2O Now we have to divide above equation by, 2 we get,…

Q: 5.Starting from 7.2 moles of Potassium Dichromate, How many ions of (Cr2O7)-2 are there? a) 5.06 x…

A: Given that, 7.2 moles of  Potassium Dichromate are peresent. To find: the number of ions of…

Q: 41.  0.8 moles of ferrous phosphate contains how many oxygen atoms?   A. 3.2 x 1024      B.…

A:

Q: In the laboratory, a student weighs out 0.0852 g of cobalt on balance.  How many atoms of cobalt are…

A: Molar mass of an element represents the mass of one mole of the element.

Q: How many atoms are in a 1.8 mol sample of Magnesium (Mg)?      1.5 x10241.5 x1024 atoms Mg   2.99 x…

A: Given : Moles of Mg = 1.8 mol.

Q: How many molecules are in 52.35 grams of aspartame? C14H 18 ,05 2.89 X 1022 Atoms C subscript 14 H…

A: Option( B) is correct.

Q: A sample of Al2(SO4)3 contains 11.2 g of oxygen, find the number of moles of Al2(SO4)3 (A) 0.0979…

A:

Q: Calculate the empirical formula of each substance from their spectrograms . 1) Co = 0.672g As =…

A: The emperical formula can be calculated by finding the number of moles.

Q: What is the number of moles in 432 g Ba(N03)2? A) 3.25 B) 0.605 C) 0.237 D) 1.65 E) 113,000

A: Answer 2: Introduction: mole: As per the international system of unit (SI) , mole is the unit of…

Q: 6 NaOH + 2AL --> Na3 ALO3+3H2 how many grams of aluminum are required to produce 17.5 grams of…

A: Given that  6 NaOH + 2Al --> Na3AlO3 + 3H2 Molar mass of H2 = 2.016 gram Given mass of H2 = 17.5…

Q: One mole of water contains 6.022 × 1023 hydrogen atoms

A:

Q: How many moles is each of the following? 15.5 g SiO2 0.0688 g AgCl 5.96 g KOH 937 g Ca(C2H3O2)2

A: Number of moles = mass molar mass

Q: How many grams are in 1.2 × 1024 atoms of carbon

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

Q: How many atoms are in 5.00 moles of O? 3.01 x 1024 atoms 2. 4.52 x 1024 atoms 3. 1.51 x 1024atoms 4…

A:

Q: How many oxygen atoms are there in 3.15 g of Al2(S208)3 (MW AI2(S208)3 = 330.34 amu) O a. 3.01 X…

A: Given that : Molecular weight of Al2(S2O8)3 = 630.34 amu or g/mol Mass of Al2(S2O8)3 = 3.15 g Number…

Q: What is the percent by mass of hydrogen in Ca(OH)2? Group of answer choices 2.72 % 1.36% 21.6 %…

A: % by mass basically tells about the concentration of one element present in the mixture. The formula…

Q: Aluminium has a density of 2.70 g/cm³ . How many moles of aluminum are in a 13.2 cm³ block of the…

A: Density of Aluminium=2.7 g/cm3We are having 13.2 cm3 block⇒2.7 g/cm3=mass13.2…

Q: A sample of Al2(SO4)3 contains 11.2 g of oxygen, find the number of moles of Al2(SO4)3   0.0979 mol…

A: The molar mass of an element can be defined as mass in grams of 1 mole of that substance. It is…

Q: How many oxygen atoms are there in 2.10 g of Al2(S208)3 (MW A12(S208)3 = 630.34 amu) %3D O a. 4.82 X…

A:

Q: 10. Calculate the number of moles represented by each of these: a) 127.08 g Cu b) 20.0 g calcium c)…

A: e) Given : Mass of americium = 5.0 mg

Q: In 7.2 moles of Potassium Dichromate, K2Cr2O7. How many atoms of O are there?

A: Given :- number of moles of K2Cr2O7 = 7.2 mol  To be calculated :- number of O atoms

Q: How many helium (He) atoms are there in 3.75 moles of helium?   3.75 x 1023 atoms 3.99 x 1025 atoms…

A: You have given - Moles of He = 3.75 mol

Q: Aluminium has a density of 2.70 g/cm. How many moles of aluminum are in a 13.2 cm block of the metal…

A:

Q: 16) What is the mass of 4.9 moles of N2O5?   a.   0.5292g   b.   52.92g   c.   5.292g…

A: One mole of any species contains its molar mass and one mole of any species contains avagadro number…

Q: Aluminum has a density of 2.70 g/cm3. How many moles of aluminum are in a 13.2 cm3 block of the…

A: Density: Density of a substance is its amount of mass per unit volume.So, density is the property…

Q: How many atoms of oxygen are in 3.52 moles of calcium nitrate?   Select one: a. 8.48 x 10^24 atoms O…

A: Mole is defined as the ratio of given mass and molar mass. The unit of mole is mol. It is utilized…

Q: A local water retention pond was found to have elevated levels of mercury concentrated as 14 ng per…

A: Given : Concentration of mercury i.e Hg = 14 ng/L. And volume of water in bond = 1250 m3  Since 1 ng…

Q: How many moles are in 1.46 kilograms of sulfur? A. 45.5 B. .0455 C. .0910 D. 91.0

A:

Q: How many atoms are in 5.80 moles of He? 4.00 1.03 ×× 1023 6.02 ×× 1023 3.49 ×× 1024 none of the…

A: Given information: Moles of helium atom = 5.80 mol

Q: How many moles of C2H4 contains 2.75x1023 atoms of H?

A:

Q: How many moles are equal to 12.65 grams of Al2(SO4)3

A: Number of moles = mass/molar mass Molar mass of Al2(SO4)3 = 342.14g/mol

Q: How many moles of oxygen are there in one mole of CGH1206? O 6.02 x 1023 moles 8.00 moles 6.00 moles…

A: one of of C6H12O6 has 6.00 moles of Oxygen so option - c correct

Q: How many atoms of Hydrogen are in 1.96 moles of Hydrogen?

A:

Q: 20 moles of Glucose(C6H1206) weigh equal to O 360 O 1800 O 6.022*103 O 3600

A: First of all, we will calculate the molar mass of glucose and then using the mole concept, we will…

Q: How many moles of calcium atoms do you have if you have 8.20 * 10 ^ 21 atoms of calcium. (The mass…

A: In 1 Mole of any substance, we have 6.023*1023 atoms of that substance.

Q: 2 Al + 3 H,SO, 6. How many grams of hydrogen gas are produced with 0.88 moles of aluminum sulfate? 3…

A: We can determine the mass of Hydrogen gas produced from the balanced equation.  The balanced…

Q: How many atoms are there in 3.33 moles of strontium? * 2.00 x 1024 atoms * 3.21 x 1032 atoms * 1.11…

A: GivenMoles of strontium = 3.33 moles Molar mass of strontium = 87.62 g/moleNo of atoms in 3.33 moles…

Q: 1. How many moles are in each of the given samples? a) 2.50 mL of water (assume density of water is…

A: Note : As per our guidelines we are supposed to answer first 3 parts .please resubmit the other…

Q: True or False? True v The mass of 2 moles of sodium is > 23 g. False v The mass of one mole of…

A: Given,

Q: 3) A different compound contains only sulfur and fluorine.a sample of the cmpound 3.859 g of…

A: 1) Moles of Sulfur (S) needs to be determined in the compound containing 3.859g sulfur and 8.874g of…

Q: A sample of Al2(SO4)3 contains 11.2 g of oxygen, find the number of moles of Al2(SO4)3   0.0740 mol…

A: Given,  Sample of Aluminium sulphate Chemical formula of Aluminium sulphate = Al2(SO4)3 Mass of…

Q: Aluminum has a density of 2.70 g/cm^3. How many moles of aluminum are in a 13.2 cm^3 block of the…

A: Given,  Density of Aluminium = 2.70 g/cm3  Volume = 13.2 cm3

Q: What is the mass of 0.560 moles of chlorine gas?   A. 19.9   B. 63.3   C. 127   D. 39.7…

A:

Q: An average sample of coal contains 3.0% sulfur by mass. Calculate the moles of sulfur present in…

A: Mass of coal given = 2.4 X 103 Kg  Since 1 Kg = 1000 g  Hence mass of coal in g = mass in Kg X 1000…

Q: Which of the following is equal to 1 mole of Ca atoms? * 6.022 x 10^22 molecules of Ca 6.022 x 10^23…

A: 1 mole of Ca atom is given  we have to convert it into atom because it’s not a molecule.

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.