What is the total number of moles of ions in 0.150L of 0.391M Na2SO4?

Q: how many ions are there in 50g of table salt (MM=58.5g/mol)?

A: Ions: These are the atoms or groups of atoms that are present in a compound and these atoms or…

Q: Calculate the percent by mass of potassium nitrate in a solution made from 67.0g KNO3 and 447 mL of…

A: Here we use formula mass percentage , that is ( Mass of solute/ Mass of solution)* 100  Mass of…

Q: If 23.3 grams of an aqueous solution of manganese(II) sulfate, MnSO4, contains 5.96 grams of…

A: Percentage by mass – ratio of Mass of solute to the Mass of solution and multiplied by 100 is…

Q: Calculate the number of moles in 17.8 g of the antacid magnesium hydroxide, Mg(OH)2?

A: Given: Mass of magnesium hydroxide, Mg(OH)2= 17.8 g Molar mass of magnesium hydroxide, Mg(OH)2 =…

Q: How many moles of NaI are there in 175.0 mL of 0.230 M NaI?

A: Molarity is a concentration term of a solution that gives the numberof moles of solute dissolved per…

Q: Determine the percent composition of silicic acid. The chemical formula is H4O4Si.

A: Percentage composition is calculated by dividing the mass of single element with molecular mass of…

Q: How many moles of NaNO3 are there in 322 ml of a 3.00M solution?

A: molarity is the amount of  no of solute dissolve given volume in liter  Molarity=moles of…

Q: What is the molarity of potassium ions in a 0.122 M K2CrO4 solution?

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Q: Calculate the number of moles of: (a) S2- ions in 6.56 mol of Na,S (b) Mg²+ ions in 8.320 mol of…

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Q: How many moles of NaOH are there in 87.0 mL of 0.300 M NaOH?

A: The molarity of a solution represents the number of moles of solute present in 1 Liter of solution.…

Q: Please in handwriting show how to solve for H+ ions -0.167=0.1400-0.0591/2 * log (0.108)/(H+)^2

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Q: How many moles of ionic species are present in 1.0 L of a solution marked 1.0 M mercury(I) nitrate?

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Q: ow many moles of Na+ ions are in 100.mL of 0.100MNa3PO4(aq) ?

A: Na3PO4   It is Sodium Phosphate Molarity  =  number of moles/volume is litres

Q: How many molecules of NaHCO3 are present in 983.2 moles of NaHCO3v?

A: Here, we have to find the number of molecules of NaHCO3 that are present in 983.2 moles of NaHCO3.

Q: Calculate how many grams are in 0.700 moles of H2O2

A: Interpretation- To determine how many grams are present in the 0.7 mole of H2O2  -   Concept-  As…

Q: How many moles of C2H2OH are there in 53.0 of 0.250 M C2H2OH?

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Q: White vinegar is essentially a mixture of 10% acetic acid (CH3COOH) and water 90% (by mass).…

A: Given,  Mass of the vinegar = 1.00 kg  Mass percentage of acetic acid = 10%  Mass percentage of…

Q: Calculate mass (in grams) of sodium in 8.5 g of sodium-containing food additive. Na2C6H6O7 (sodium…

A: The molecular formula of the given compound is Na2C6H6O7. So, the molar mass of this compound is…

Q: What is the molarity of potassium ions in a 0.122 | M K2CrO4 solution?

A:

Q: How many moles of NaOH are there in 125.0 mL of 0.345 M NaOH?

A: The molarity of a solution is defined as the moles of solute present in 1L of the solution.

Q: How many total moles of ions are released when 0.32 mol of NH4Cl dissolved in water?

A: The dissociation reaction of NH4Cl  in water is as follows: NH4Cl→NH4++Cl−

Q: How many moles of NaOH are there in 125.0 mL of 0.445 M NaOH?

A: Molarity can be calculated as follows: Molarity=No. of molesVolume

Q: How many moles of H2SO4 are there in 184 mL of a stock solution that reads 0.264M ?

A: Volume of solution = 184 ml ...or because 1L = 1000 ml    so,  = 184 ml × (1L / 1000 ml )  = 0.184 L…

Q: What is the mass percent concentration of HC2H3O2 when the molarity of HC2H3O2 is 169?

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Q: What is the Molar Mass (g/mol) of acetic acid (CH3COOH) to the hundredths?

A: The mass of the sample of a compound to the amount of substance in the sample, in moles is known as…

Q: How many moles of CH₃OH are there in 79.6 mL of 0.400 M CH₃OH?

A: We know that,      Concentration=number of moles/volume(L)   Number of moles=concentration x…

Q: Upon decomposition, a sample of sodium bicarbonate produces 0.0118 g of sodium carbonate, Na2CO3.…

A: Given that, a sample of sodium bicarbonate (NaHCO3) decomposed to produce 0.0118 g of sodium…

Q: If 0.0458 mol CaCl20.0458 mol CaCl2 is dissolved in water to make a 0.490 M0.490 M solution, what is…

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Q: How many moles of NaOH are there in 125.0 mL of 0.375 M NaOH?

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Q: What volume of 0.20MNaCl(aq) contains 10.0g of NaCl (molar mass 58g/mol)?

A: Number of moles = mass/molar mass Number of moles = Molarity x volume in L

Q: How many moles of CH₃OH are there in 36.2 mL of 0.400 M CH₃OH?

A: In the given sample, the volume of methanol (CH3OH) solution is 36.2 mL and molarity is given as…

Q: 3. If 1.00 gram of Na2CO3 reacted with HCI(aq), according to reaction 1 in Part A, how many moles of…

A: Given, mass of Na2CO3 = 1.00 g  Moles of NaCl = ? Chemical equation would be Na2CO3  + HCl --->…

Q: How many moles of NaOH are there in 375.0 mL of 2.50 M NaOH?

A: Molarity = Number of molesVolume in liter

Q: How many grams of H2 are needed to produce 11.80g NH3?

A: Given information: grams of NH3 are 11.80 g

Q: Calculate the number of moles in 200.0 g of H3PO4

A: Given information,         Mass of H3PO4 is 200.0 g

Q: 2 If 18.25 g HCl is dissolved in enough water to make 500.0 mL of solution, what is the molarity of…

A: 1.0 M or mol/L

Q: Calculate the following quantities: (a) number of H atoms in 0.585 mol C4H10

A: Moles of C4H10 given= 0.585 moles  To calculate : no. of H atoms in it.

Q: How many moles of NaOH do I have, if I have 16.05 mL of NaOH?

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Q: If 38.5 mL of Ca(OH)2 solution of concentration 0.8 mol/L completely reacted nitric acid, HNO3, how…

A: Given: Volume of Ca(OH)2  is 38.5 ml  Molarity of Ca(OH)2  is 0.8 mol L-1 To find: Moles of HNO3

Q: Which contains the greatest mass of oxygen: 0.75 mol of ethanol (C2H5OH), 0.60 mol of formic acid…

A: Given: Moles of ethanol=0.75 molmoles of formic acid=0.60 molmoles of water=1.0 mol

Q: How many moles of Na+ ions are in 20 mL of 0.40 M Na3PO4?

A: The relation between milliliters (mL) and liters (L) is written below.1 mL = 0.001 LConvert  20 mL…

Q: PERCENT COMPOSITION FROM FORMULAS:  NH4NO3

A: Given :  Find the percent composition of NH4NO3 Formula for % composition is  % by mass = mass of…

Q: How many moles of CH3OH are there in 50.0 of 0.400M CH3OH

A: Given: Volume of CH3OH = 50.0 mL Molarity of CH3OH = 0.400 M

Q: Consider a compound where it is determined that 0.88 g are equivalent to 0.00256 moles.  What is the…

A: Data given: Mass of the compound, m = 0.88 g Number of moles of the compound, n = 0.00256 moles…

Q: How many moles of NaOH are there in 385.0 mL of 2.5 M NaOH?

A: Molarity = number of moles/ Volume of solution (in L) No.of moles = Molarity × Volume (in L)

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

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Q: What is the percent of water in : FESO,•6H,O 4

A: Given molecule: FeSO4.6H2O

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

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Q: Find the amount in millimoles of phosphorous in 850 mg of P2O5.

A: The amount of millimoles of an individual species can be found by converting the molecules to mloes…

Q: Cyanide chloride(C15H11O6Cl) contains the cyanidin ion. Calculate the number of moles of cyanidin…

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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.