Find the percent composition of each of the following: a. PbCl2   b. Ba(NO3)2

Q: Each capsule should contain riboflavini natri phosphas equivalent to 10 mg riboflavinum. Figure out…

A: Number of mol = Mass/Molar mass Number of mol of riboflavin sodium phosphate = Number of mol of…

Q: Many are always trying to find alternatives for sugar. Stevia is one such alternative. Its main…

A: Stevioside is a glycoside extracted from stevia plant which is used as a sweetner. It is considered…

Q: 40. Calculate the number of moles in each of the following: of NaCl a. 32.3 grams b. 11.6 grams of…

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

Q: Copper(II) fluoride contains 37.42% F by mass. Use this percentage to calculate the mass of fluorine…

A: By the given mass percent it is clear that in 100g of CuF2 there are about 37.42 g of F by mass.

Q: Heart disease is linked to high blood cholesterollevels. What is the percent composition of…

A: Percentage composition of each element defines the amount of that particular element present with…

Q: Briona Bensha Grams/Moles Calculations Given the following, find the number of moles: 1) 30 grams of…

A:

Q: The average cup of coffee contains about 125 mg of caffeine, C3H10N O. Caffeine is also found in…

A: The chemical formula of caffeine = C8H10N4O2 Moles are calculated by the formula,       Moles=Given…

Q: Calculate the number of moles in a)2.25 g of KBr b) 60 mg of MgNH4PO4.

A: Calculate the number of moles in ---//

Q: Calculate the percentage composition for C2H60. (Enter your answer to four significant figures.)…

A:

Q: Given that the number of moles in calcium carbonate used 8.93x10-4 mol. Calculate the mass of the…

A: The given data contains, number of moles of CaCO3=8.93×10-4moles.

Q: 5. What is the molecular mass of CH,COONA? C. 70g/mole d. ) 82g/mole 60g/mole b. 66g/mole a.

A: As per regulations only the first question can be answered. So the answer for question 5 is being…

Q: Contains 157 Zine oxide ointment APF of eine oxide mixed with 85 g of smple ointment . you require…

A: Answer: Initially 15g of ZnO is mixed in 85g of simple ointment, which means, 100g Ointment APF…

Q: how many moles of cocl3 are in 172.6 ml of a 19.6% mass sloution of cocl3 which has a density og…

A: You have given total volume and density, then find the mass of the solution to get the % mass of the…

Q: 4. How many moles of Vitamin E ( the formula is written down) are present in 10.0 g of Vitamin E?…

A: Given, the formula of Vitamin E as follows,C29H50O2amount of Vitamin E =10.0 gwe are asked to…

Q: How many moles are contained in 13.8 g of BaCl, • 2 H,O? Select one: a. 17.7 mol b. 0.0565 mol c.…

A: Given mass of BaCl2.2H2O= 13.8 g Molecular weight of BaCl2.2H2O = 244.26 and we know the formula of…

Q: Use the following to answer questions A &B Mg N. + v. K0 → MgO + K3N A. If 14 moles of potassium…

A: Principle of atom conservation states that the total number of atoms in reactant will be equal to…

Q: Using the balanced reaction below, Given 1.206 g of AICI3 , calculate how many grams of PbCl2 will…

A: Given that: mass of AlCl3 = 1.206 g 3Pb(NO3)2 (aq) + 2AlCl3 (aq) →3PbCl2 (s) + 2Al(NO3)3 (aq) molar…

Q: What is the mass of 2.068 moles of H2O    (H2O =18.02 g/mol) Your answer should have 4 sig figs

A: Given that, No. Of moles of H2O = 2.068 moles  Molar mass of H2O = 18.02g/mol

Q: Ascorbic acid (C,H306) is also known as Vitamin C. How many molecules of C,H,0, does a Vitamin C…

A: Given,

Q: If there are 7.20 moles of H, how many moles of each of the compounds are present? H, SO, mol C,H,O,…

A: Given: The number of moles of H (hydrogen) is 7.20 moles

Q: Label the diagram to correctly convert 3 moles of H2 to molecules of H2 : 1 Mol H2 :: 6.02x1023…

A: Number of molecules can be find out using Avagadro Number as follows:

Q: 10. What is the molar mass of diphosphorus pentaoxide? * this is incorrect 80 g/mole 284 g/mole 150…

A:

Q: Chemistry Stoichiometry HW #1 Mole to mole Show all work for credit! 2NaCl + F2 → 2NaF +Cl2 1. If…

A: Sodium chloride reacts with fluorine to form sodium fluoride and chlorine gas. The equation for the…

Q: Borax, a common laundry product, is sodium borate decahydrate.  The chemical formula is Na2B4O7 ⋅⋅…

A: Using the molar mass of borax and molar mass of water we can find percentage of water.

Q: A patient is having an allergic reaction and takes a 50.0 mg tablet of the over-the-counter…

A:

Q: how do i calculate the number of moles in 4.00g of each of the  Au

A: Number of moles = Mass in gram /Molar mass in gram per mole Given that: Mass of Au = 4.00 g Molar…

Q: 11. Calcium Carbonate (CaCO, Molar mass = 100.09 g/mole) is an antacid used to neutralize extra acid…

A: Given,  Molar mass of CaCO3 = 100.09 g/mole  Mass of tablet = 250 mg  How many moles of CaCO3 will…

Q: What is the percent Xenon in Xe(OH),? Show your work.

A: Data: The molar mass of Xe(OH)2= 165.307 g/mol The mass of Xe= 131.293 g To find: The percent of…

Q: N2 + 3 H2 → 2 NH3 if vou have 1 5 moles ofN. how many moles of NH

A: From the given reaction it has been seen that 1mol of N2 gives 2 mol of NH3.

Q: a cereal contains 11 grams of sucrose per 60g of cereal. How many grams of cereal must be eated to…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: elect the correct mole-mole factor needed to find the number of moles of GaCl3GaCl3 from the moles…

A: The answer to the following question is given as:

Q: How many grams of magnesium chloride are present in 0.7643 moles of sample

A:

Q: Which of the following are mole ratios from the equation below? Select all that apply. S8+12O2=8SO3…

A: 8 moles of SO3 is formed when 1 mole of S8 is used in the reaction. Option a is correct.

Q: Calculate the moles of C2H6O in 8.16x10^24 molecules of C2H6O

A: For C2H6O , Number of molecules = 8.16 × 1024

Q: Question 16 of 96 View F How many grams of NaCl are in 35.6 moles of NaCl? 2080.46 g

A: Given: Moles of NaCl = 35.6 mol Grams of NaCl = ? Moles can be converted into mass in grams using…

Q: How many moles are in 18.5 g lead?

A: No of moles = WEIGHT /MOLECULAR WEIGHT  n=W/M

Q: How many carbon atoms are contained in each of the following number of moles: (a) 0.480 mol; (b)…

A:

Q: How many grams are contained in 6.30 mol of each compound? Do not convert these answers to…

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

Q: If a can of diet soda contains 0.185 28.1 how many N, O, C, and H atoms are present in this amount

A:

Q: Chemical Formula Molar Mars Number of Moles Subrtance Mass (9) of atoms or moleculen Soda Pop Can Al…

A: Soda pop can : Chemical formula- Al Molar mass- 27 gmol-1 Steel Iron wool: Chemical formula- Fe…

Q: How many moles of water H2O, are present in 75.0 g O? O 4.41 moles 7.50 moles O 75.0 moles 4.16…

A: The moles of water are found in 75.0 g of oxygen.

Q: Calculate how many moles are in 2.00 grams of H2O? 0.111 mol 0.121 mol 0.011 mol 0.001 mol None of…

A: The number of moles can be calculated by using the following formula, n=given massmolar massMolar…

Q: How many

A: 6

Q: Determine the molar mass of C2H7N.

A:

Q: a) when heated to 220°C, BeC2O4·3 H2O(s) dehydrates completely as represented below BeC2O4·3 H2O —>…

A:

Q: A standard number 2 pencil contains 3.0x10 grams of graphite (Formula: C). How many moles of…

A: Given : Mass of graphite i.e carbon = 3.0 X 10-4 g And molar mass of carbon = 12.011 g/mol.

Q: Name: Calculate each of the molar masses below. Use the space below in each box to show your work.…

A: Ans : 3) 1 mole of Mg =  24.31 g Mg i e  Mg = 1g × 24.31  Total = 24.31 g     4) 1 mole of H2SO4…

Q: How many oxygen atoms are present in 2.1g of Al203? Molecular weight of Al203= 102 g/mol Avogadrow…

A: The number of atoms in oxygen molecule has to be given, Given, Mass=2.1 g. Molar mass=102 g/mol.…

Q: 63.5 mol of P0, contains how many moles of P? moles of P: mol P Incorrect

A:

Q: Calculate each of the following quantities in 2.20 moles H3PO4: moles of H and  moles of O

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.