A toothpaste contains 0.240% by mass sodium fluoride used to prevent dental caries and 5.0% by mass KNO3 which decreases pain sensitivity. One tube contains 119g of toothpaste.  a) how many moles of NaF are in the tube of toothpaste?  b) how many floride ions, F- are in the tube of toothpaste?  c) How many grams of soduim ion, Na+ are in 1.50 g of toothpaste? d) how many KNO3 formula are in the tube of toothpaste?

Q: Consider the generic chemical reaction:A + 2 B-> CHow many moles of C are formed upon complete…

A: Hello. Since the question contains more than three sub-parts, the first three sub-parts shall only…

Q: The molar mass of NBr3 is (2.22 x 10² mol Br₂)(- mol NBr3 g mol NBr3 -) = mol Br₂ g NBr3 mol NBr3 g…

A:

Q: 16. Consider the generic chemical reaction:2 A + 3B ->  3 CHow many moles of B are required to…

A: Given: Moles of the reactant A (n): 6 moles, 2 moles, 7 moles, 11 moles Moles of B are needed to be…

Q: 3. 2AI + 6HCI – 2AICI, + 3H, a) Al to HCI b) AICI, to H, c) HCl to H,

A: The given balanced Chemical equation is -   2Al + 6HCl ----> 2AlCl3 +3H2   Mole ratio is the…

Q: In each breath we tahe in q.5 x10 atoms of OXygen How muny Oxygen Coa,3ag/mol) are contured In each…

A: Given that, Number of atoms of oxygen taken in each breath = 9.5×1022 atoms or 9.5×1022 molecules *…

Q: Potassium cyanide reacts with acids to produce hydrogen cyanide gas via the following reaction:…

A:

Q: The mineral hedyphane has the formula Pb3Ca2(AsO4)3Cl  (m.w = 1154.0 g/mol).  How many moles of…

A: A chemical formula represents the number of elements present in a compound in their relative…

Q: -moles of NH: wi

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

Q: B. Given the following reaction: A + 3B --> 2C Calculate the number of moles of A. Molecule (8) sseu…

A:

Q: (d) Consider a 1.0000 g sample containing 75% potassium sulfate and 25% MSÓ4. The sample is…

A: given, mass of sample = 1.0000 g

Q: 95.0 mL of 1.9x10-5 M H₂SO4, a sample of acid rain moles mol mass g

A: Answer:Number of moles of a solute in a solution is always equal to the product of molar…

Q: 3.) Calculate the moles of KHP in flask #3. grams KHP Molar Mass of KHP (АЗ) 204.22 g/mol moles KHP…

A: Moles - One mole means 6.022 x 1023 number of that compound.  It is found that the molecular mass…

Q: What amount (mole) of C2H3Cl3O2 molecules are in 498.4 g chloral hydrates

A: Molecular formula of chloral hydrate = C2H3Cl3O2 Weight of C2H3Cl3O2 = 498.4 gram

Q: During the winter months, many locations experience snow and ice storms. It is a common practice to…

A:

Q: Copper(1) hydroxide, CUOH, has been combined with latex paint to create a product designed to…

A: The formula unit means the total number of molecules or atoms in the compound. This can be…

Q: 4.0 mol Na can form 4.0 mol NaF and 2.5 mol F2 can form 5.0 mol NaF. What mass of NaF forms during…

A:

Q: Q2) How many grams of NażCO3 are required to prepare : 1) 120 ml of 0.25 M 2) 250 ml of 0.1 N Molar…

A: The answer to the following question-

Q: How many moles and how many ions of each type are present in each of the following?(a) 130. mL of…

A: The number of moles of aluminum chloride and the number of ions in the solution (a) are determined…

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: 6 NaOH + 2AL --> 2Na3 ALO3+3H2 how may moles of Na3 ALO3 can be formed from 90.0 g of sodium…

A:

Q: How many total moles of ions are released when each of the following samples dissolves completely in…

A:

Q: If 1.00mol/l of nax contains 4.2% solute by mass, what is the atomic mass of x?

A: Given solution contains 1.00 mol of NaX in 1 L. Again (w/v)% of NaX is 4.2%. Here we have to…

Q: Calculate the mass% of Ba in Ba(OH)2. Ba = 137.3 g/mole,  O = 16.00 g/mole,   H = 1.008 g/mole…

A:

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…

A:

Q: When the following net ionic equation is properly balanced, what are the coefficients for Cu, NO3–,…

A:

Q: How many total moles of ions are released when each of the following samples dissolves completely in…

A: To find the total number of moles of ions: 0.32 mol of NH₄Cl?  25.4 g of Ba(OH)₂.8H₂O? 3.55X10¹⁹…

Q: 1.). Balance the equation above. Where the lines are, write the coefficient you would use to balance…

A: Note: As per guidelines, single question is allowed to each session, please post it seperatly, thank…

Q: Preparing 0.1 M sodium hydroxide (NaOH) solution Sodium hydroxide pellets (g) Dilution volume (mL)|…

A: Molarity is defined as the number of moles of solute present in one liter of solution.

Q: C3Hg(g)+___O2(g)-->3CO2(g)+4H2O(l) How many O atoms are present on the right side of the chemical…

A: The given chemical equation is,  C3H8 (g) + ___O2(g) → 3CO2(g) + 4 H2O(l)

Q: To form AgCI(s) from KCI(aq) and AgNO3(aq), the mass of KCI should be 10.00g less than that of…

A: Solution: From the las of conversion of mass and stoichiometry given question is solved. First we…

Q: How many total moles of ions are released when each of the following samples dissolves completely in…

A:

Q: 3. A sample of a compound of CI and O reacts with an excess of H2 to give 0.233 g HCI and 0.403 g…

A: Given datas – Mass of HCl formed = 0.233g Mass of H2O formed = 0.403g We can write the expected…

Q: Fe(OH); + 3 HBr FeBr, + H,O - - REACTANTS PRODUCTS Element Symbol How Many? Element Symbol How Many?…

A: The balanced chemical equation can be written as follows: Fe(OH)3  +  3HBr  →  FeBr3  +…

Q: According to the following reaction, how many grams of hydrofluoric acid will be formed upon the…

A: The given reaction is as follows:    SiF4(s) + 2H2O(l) → 4HF(aq) + SiO2 The given mass of water =…

Q: What is molarity?      Concentration of a solution in moles/kg Density of a solution in…

A: Here we are asked to define the term molarity.

Q: 4. Use the below reaction for the following question: NaOH + HCl Nacl + H20 During the…

A:

Q: Suppose a student starts with 2.4319 g of a sand mixture and separates the components into 1.3012 g…

A: percent of SiO2 in the starting mixture =    =Mass of SiO2 × 100/ Total Mass of the mixture =…

Q: Pt Find the percentage composition of each of the elements in Penicillin, C,«H20N;SO. C = H = N = S…

A:

Q: How many moles of glucoseare present in 50.0 grams of an aqueoussolution that is 2.50% by mass…

A: Given that: 50.0 grams of an aqueous solution that is 2.50% by mass glucose. So mass of glucose in…

Q: 7. Consider the following reaction: Al(SO4),+ Na,PO, Na,SO, AIPO, If 2 moles of aluminum sulfate are…

A: Since the three different questions are given, we will solve only first question according to the…

Q: If 50 g of Iron(III) chloride  react with 25 g of sodium hydroxide what is the maximum mass of…

A:

Q: ___Ca(OH)2 + ___Na2SO4 ➞ ___CaSO4 + ___NaOH Reaction Type:____________  How many grams of calcium…

A: ___Ca(OH)2 + ___Na2SO4 ➞ ___CaSO4 + ___NaOH Reaction Type:____________ How many grams of calcium…

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.