Lamar measures out 1.697 g of NaCl to add to his pot of boiling water for his pasta. How many moles of NaCl did Lamar add to his boiling water? The molar mass of NaCl is 58.44 g/mol.

Q: If 7.24 g of Na2CO3 is dissolved in enough water to make 250. mL of solution, what is the molar…

A: Recall the data, mass of Na2CO3=7.24 g Molar mass=105.9888 g mol-1 Volume of the solution=250.…

Q: How many grams of CaCl2 can be produced by reacting 1.34 moles of CaO and 2.47 moles of HCL by the…

A: We are given a reaction., CaO+2HCL= CaCl2 + H2O Now from the reaction we can say that 1 mole of CaO…

Q: Solutions of sodium hypochlorite (NaClO) are sold as laundry bleach. This compound is made by the…

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Q: RITROE 19 K 39.30 132 20 Ca 21 Sc Ti Molarity (M M₁ = M₂V₂ Convert the mass 1570.3 mg of a chunk of…

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Q: What is the molarity of each solution? a. 39 g of KCl dissolved in enough water to give 375 mL of…

A: * molarity = Moles / volume of solution in L   * Moles = Mass / molar mass   By using this relation…

Q: How many moles of lead are equivalent to 9.51 × 1 0 3 g of Pb?

A: Moles =given mass/ molar mass

Q: The molar mass of calcium hydroxide, Ca(OH)2, is O 54.02 g/mole O 58.09 g/mole O 114.2 g/mole 74.10…

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Q: Potassium metal reacts with water according to the following balanced equation. 2 K(s) + 2 H₂O(1) →→…

A: The objective of the question is to understand the stoichiometry of the given chemical reaction and…

Q: + Water "softeners" remove metal ions such as Ca²* and Fe³* by replacing them with enough Na ions to…

A: Given data,Volume of solution=7.96×102LMolarity of Ca2+=0.0357 MMolarity of Fe3+=0.00151 M

Q: How many grams of NaOH could be produced from 15.0 L of 0.350 M NaCl?

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Q: Consider the combustion of glucose: C6H12O6(s)  +   6 O2(g)   ®   6 CO2(g)  +  6 H2O(g)   Calculate…

A: Since you have posted a question with multiple sub-parts ,we will solve first two sub-parts for you…

Q: Consider the following chemical reaction: 2HCI + Mg(OH)2 If a stomach contains 0.050 moles of HCI,…

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Q: Calculate the amount in grams of carbon dioxide from the amount of sodium bicarbonate that you used…

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Q: How many N₂ molecules are present in 0.500 g of N₂? (show your complete calculation). The empirical…

A: One mol of a substance contains 6.022 x 1023 molecules/units of it. The empirical formula is the…

Q: How many moles of acetone (CH3COCH3) are present in 20.00 mL acetone? [Molar mass of acetone is…

A: In international system of Unit, there are several unit. In order to calculate the amount of…

Q: 2. Sodium sulfide, Na₂S, is made by the following reaction. Na₂SO4 (s) + 4C (s) - Na₂S (s) + 4 CO(g)…

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Q: What is the molarity of a solution made by dissolving 37.2 g Fe(NO3)3 in enough water to make 200.0…

A: As you not specified so I am giving answer of 1 question Given mass =37.2gm Molarity mass= 242g/mol…

Q: 1.) If 6.0 grams of CaCO3 reacts with excess HCI, what mass of water should be formed? The balanced…

A: Since you have asked multiple type questions, we will solve only first  questions for you. If you…

Q: • Simplest mole ration before rounding: lil Ration moles NaHCO3 : Simplest whole number mole ratio…

A: “Since you have posted multiple questions with multiple sub parts, we will provide the solution only…

Q: What mass of NH4OH is needed to react completely with 75.09 Cu(No3)2

A: To solve this problem first we have to write the balanced chemical equation  The balanced chemical…

Q: The hydrated salt, MY3.XH2O, was heated strongly in a crucible to remove all the water molecules of…

A: From the given information , we have,         Mass of empty cruicible and cover, m1 = 28.86 g…

Q: Phosphoric acid (H3PO4) can be prepared from phosphorous triiodide (PI3) according to the reaction:…

A: Given: Mass of PI3 = 15 g Molar mass of PI3 = 411.7 g/mol Volume of H2O = 25 mL Molar mass of H2O =…

Q: 1)A solution of Na2CO3 is prepared by dissolving 0.511 g of the solid in approximately 30 mL of…

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

Q: Write the balanced reaction for the reaction that occurs. b) How many moles of calcium carbonate…

A: This question is based on stoichiometry. This amount of reactant reacted and product produced…

Q: Suppose a group of students working as lab partners mixed four liquid chemicals together. The four…

A: Need to calculate the mass percentage of 2-propanol.

Q: Complete this equation: HCl(AQ) +  NaOH(AQ) ➡ Write this equation as unionized; total ionic; net…

A: Ionic equation is an equation in which ions are explicitly shown. Net ionic equation is the chemical…

Q: If 50.0 mL of a 30.0% by volume H2O2 solution was used in the demonstration, how many moles of…

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Q: What mass of a 4.00% NaOH solution by mass contains 15.0 g of NaOH?

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Q: 1. Anhydrous (doesn't contain water) sodium sulfate, Na2SO4, absorbs water vapor and is converted to…

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Q: A student preformed the synthesis of aspirin. They used 2.43 g of salicylic acid and 5.22 mL of…

A: density of acetic anhydride = 1.08 g/cm3volume of acetic anhydride = 5.22 mLmass of salicylic acid =…

Q: 2H2 + O2 -->  2 H2O How many moles of oxygen is required to produce 17.1 moles of water?

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Q: 2) How many grams of NaOH are contained in 0.10 L of a 0.2515 M solution of NaOH? (The density of…

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Q: If you add 1.0 x 10^3 g of ethylene glycol as an antifreeze to a 4.0 kg of water in the radiator of…

A: Mass of ethylene glycol= 1.0×103 g gram molar mass of ethylene glycol =62 g  The calculation of…

Q: How many moles of NaOH are present in 14.5 mL of 0.130 M NaOH?

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Q: How many moles of NaOH are present in 27.0 mL of 0.110 M NaOH?

A: Molarity is one of the concentration term which is used to define the concentration of a solute in a…

Q: Consider the fictional element A (which has a molar mass of 7.00 g/mol) and the fictional element D…

A: Given : Molar mass of A = 7.00 g/mol. Molar mass of D = 13.00 g/mol. Mass of hydrate compound of AD3…

Q: One of the challenges astronauts face is in space travel is the build-up of carbon dioxide in their…

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Q: Reaction: 2NaOH(s)+CO2(g)→Na2CO3(s)+H2O(l) Which reagent is the limiting reactant when 2.62 mol…

A: Balanced chemical reaction:       2NaOH(s)+CO2(g) → Na2CO3(s)+H2O(l)Given:Number moles of NaOH =…

Q: Units for molarity are 1. grams/liter 2. grams/mL 3. moles % 4. moles/L 01 O 2 Оз O 4

A: Molarity helps us to measure the concentration of the solution. It is defines as the number of moles…

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.