4. How many atoms of sulfur are in 10.18 mol of tetrathionate (S4O,2-) ion? O 2.451 x1025 atom O 6.128 x1024 atoms O 3.677 x1025 atoms O 4.903 x1025 atoms

Q: Calculate mass percent of each element in perchoric acid, HCLO4 ?

A:

Q: A sample of sulfolane, C.H3O,S, contains 5.00 x 1024 atoms. How many moles of sulfolane are in the…

A:

Q: How many bromine molecules, Br2, have a mass equal to 31.8 g?

A: 1.20 *10^23 molecules.

Q: Complete the table. Element Moles Mass Cr 0.00442 Fe 73.5 mg Ti 1.009 x 10-3 Hg 1.78 kg

A: Mole is represented by the symbol mol. It is unit of measurement of substance. Mass is defined as…

Q: How many carbon atoms are in 8.94 mL of C3H6O? 1 mole 6.02 x 1023 atoms 1 mL = %3D 0.883 g atoms of…

A: Calculation of mass in 8.94 mL: 1 mL=0.883 g8.94 mL=0.883 g1 mL×8.94 mL=7.894 g

Q: How many moles and molecules are in 631.9 g Al2(SO4)3?

A:

Q: how many ions or atoms of each element are in 160.5 g of the following substances?  a) H2 _?_ x1025…

A:

Q: How many O atoms are in 2.00 g  Al2O3 ? Al = 26.98 g/mole, O = 16.00 g/ mole

A: Recall the data, mass of Al2O3=2.00 g molar mass of Al=26.98 g/mole molar mass of O=16.00 g/ mole

Q: Calculate the number of C atoms in 5.50 g of C. 6.02 x 10 23 C atoms O 3.31 x 10 24 C atoms O 5.01 x…

A:

Q: How many bromine atoms are in 1.25 mols of Br? O2.08 x 10-24 atoms O 4.82 x 1023 atoms 7.53 x 1023…

A:

Q: hich of the following is closest to having exactly one mole of oxygen atoms?   a) 42 g HNO3 b) 32…

A: a. 42 g HNO3 1 mole HNO3 contains = 3 moles of oxygen atoms moles of HNO3 = given mass/molar mass =…

Q: 4. YOU HAVE 15 GRAMS OF NazSO4. CALCULATE THE NUMBER OF CATIONS IN THIS MASS. GIVEN: MOLAR MASS (…

A: Given compound Na2SO4 and this compound dissociates into cation and anion as  Na2SO4 ⇌2Na+ + SO4-2…

Q: Which of the following has the smallest mass? I. 18 g H2O II. 1.0 × 1024 H2O molecules III. 0.50…

A: In the above question different expression for measuring the mass are provided. These expressions…

Q: Determine the number of moles of xenon in 12.0 g of xenon. O 7.62 x 10 -3 mol O 0.0457 mol O 1.00…

A: We can determine the number of moles of a substance from the mass and molar mass of the substance.…

Q: How many Chromium atoms are present in a 5.00 mole ?sample of Al2(Cr207)3 None of them x 1024 9.03 x…

A: We have given that 1 mole of Al2(Cr2O7)3 contain 6 mole of chromium  Avogadro's number is defined as…

Q: How many atoms of chlorine are present in 5.0 moles of carbon tetrachloride? 1 mole = 6.02 x 1023…

A: Given  5 moles of carbon tetrachloride  Formula of carbon tetrachloride = CCl4

Q: How many carbon atoms are in 8.94 mL of C3H6O? 1 mole 6.02 x 1023 atoms 1 mL = %3D 0.883 g atoms of…

A: Given for C3H6O volume (V) = 8.94 mL 1 mL = 0.883 g So first calculate the mass of C3H6O mass =…

Q: A thyroid condition called goiter can be treated by increasing iodine in the diet. Iodized salt…

A:

Q: 4. How many atoms of oxygen are in 10.18 mol of tetrathionate (S40,2) ion? O 3.677 x10 atoms O 6.128…

A: This question is very simple example of mole concept. First thing to calculate the number of oxygen…

Q: Which contains the greatest number of moles of oxygen atoms: 1 mol of ethanol (C2H5OH), 1 mol of…

A: Given : Moles of ethanol i.e C2H5OH = 1 mol. Moles of formic acid i.e HCO2H = 1 mol. And moles of…

Q: What is the molecular formula for a compound having a molar mass of 360g and the empirical formula…

A: We know molar masses of  C=12 H2=2 O=16 so CH2O=30gmol-1  Now; Given molar masseffective molar…

Q: Calculate the number of moles in 0.48 g of copper. O 0.033 mol O 1.3 × 102 mol O 7.6 x 10-3 mol O…

A: The objective of the question is to calculate the moles of copper.

Q: How many atoms are present in 123 g of sodium cyanide (cyanide = CN-)?

A: Dear student since it is a multiple type question, according to guidelines here I am solving only…

Q: : The molar mass of adamantium (Ad) is 45.09 g/mol. Determine mass of 0.0675 moles of Titanium (IV)…

A:

Q: How many moles of Pb are in 4.71 x 1021 Pb atoms? O 2.84 x 1045 6.022 x 1023 207.2 none of the above…

A:

Q: 1. Calculate the number of moles of chlorine in 2.34 x 1019 molecules of chlorine.

A: The question is based on mole concept. we have to calculate number of moles in given molecules of…

Q: How many atoms are in 25.6 g tin? O 1.30 x 1023 atoms O 3.01 x 1024 atoms O 3.01 x 1023 atoms O 6.02…

A: Moles of tin are, Moles = mass ÷ molar mass Moles = 25.6 g ÷ 118.71 g/mol Moles = 0.22 mol

Q: If 1 mole of water have 20.0 g of H2O, calculate the number of molecules. (molar mass H=1, O=16)…

A:

Q: 1. How many moles are 1.20 x 10^25 atoms of phosphorus? 2. How many atoms are in 0.750 moles of…

A: We know

Q: In a quantitative analysis study, 4.624 grams of a hydrocarbon (which contains carbon and hydrogen…

A: Since in the each molecule of CO2 we have 1 atom of C and in each molecule of H2O we have 2 H atoms…

Q: How many phosphate ions are there in 5.65 mg of Ca;(PO)2 (MM= 310 g/mol) O 1.03x1020 ions O 1.18x102…

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

Q: If 1 mole of water have 20.0 g of H2O, calculate the number of molecules. ( molar mass H=1, O=16)

A:

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.