How many Na + ions are in a mole of Na 2 SO 4 ? How many SO 4 2- ions?

Hello. In this problem, we are told in a sample of 0.500 moles of potassium bromate determine the number of potassium mines and die chrome eight irons beginning with what we're given, we have 80.500 moles of potassium bromate. Looking at the chemical formula for every one mole of potassium micro mate. We have two moles of potassium mines based on the subscript in the chemical formula. And one more potassium mines is equal to 6.02, 2 times 10 to the 23rd. Nasty minds are moles of potassium bromate, cancels moles of potassium ions cancels. This works out to 6.02 times 10 to the 23rd potassium mines Beginning in with what we're given .500 moles of potassium bromate and everyone mole potassium bromate. We have one mole have di chromium ions. One more di chrome eight irons has six point oh 22 times 10 to the 23rd, they cremate irons. Our moles are protesting by chrome, it cancels moles of di chrome. It cancels and we're left with from Iran's. This is 3.01 Times 10 to the 23rd like cremate irons, This quality of potassium mines and the Chrome eight islands corresponds. Then to answer be thanks for watching. Hope this helped.

Ch.6 Chemical Reactions: Mole and Mass Relationships

McMurry - Fundamentals of GOB 8th Edition

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McMurry 8th Edition

Ch.6 Chemical Reactions: Mole and Mass Relationships

Problem 22

Chapter 6, Problem 22

How many Na⁺ ions are in a mole of Na₂SO₄? How many SO₄^2- ions?

Verified step by step guidance

Step 1: Understand the chemical formula of sodium sulfate (Na₂SO₄). It consists of 2 sodium ions (Na⁺) and 1 sulfate ion (SO₄²⁻) per formula unit.

Step 2: Recall that 1 mole of any substance contains Avogadro's number of particles, which is approximately 6.022 × 10²³ particles/mole.

Step 3: Determine the number of Na⁺ ions in 1 mole of Na₂SO₄. Since each formula unit of Na₂SO₄ contains 2 Na⁺ ions, multiply Avogadro's number by 2 to find the total number of Na⁺ ions in 1 mole of Na₂SO₄.

Step 4: Determine the number of SO₄²⁻ ions in 1 mole of Na₂SO₄. Each formula unit of Na₂SO₄ contains 1 SO₄²⁻ ion, so the total number of SO₄²⁻ ions in 1 mole of Na₂SO₄ is equal to Avogadro's number.

Step 5: Summarize the results: Multiply Avogadro's number by the respective counts of Na⁺ and SO₄²⁻ ions per formula unit to find the total number of each ion in 1 mole of Na₂SO₄.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Mole Concept

The mole is a fundamental unit in chemistry that represents a specific quantity of particles, typically 6.022 x 10^23 entities, known as Avogadro's number. It allows chemists to count atoms, molecules, or ions in a given sample by relating mass to the number of particles. Understanding the mole concept is essential for converting between grams and moles, which is crucial for stoichiometric calculations.

Ionic Compounds

Ionic compounds are formed from the electrostatic attraction between positively charged ions (cations) and negatively charged ions (anions). In the case of Na2SO4, sodium (Na+) is the cation, and sulfate (SO4 2-) is the anion. The formula indicates that two sodium ions are present for every sulfate ion, which is key to determining the number of each type of ion in a mole of the compound.

Chemical Formula Interpretation

A chemical formula provides information about the types and ratios of atoms in a compound. For Na2SO4, the subscript '2' next to Na indicates that there are two sodium ions for every one sulfate ion. This interpretation is crucial for calculating the total number of ions in a mole of the compound, as it directly informs how many of each ion type are present.

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<IMAGE>

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a. <IMAGE>

b. <IMAGE>

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How many moles of ions are in 1.75 mol of K₂SO₄?

Caffeine has the formula C₈H₁₀N₄O₂. If an average cup of coffee contains approximately 125 mg of caffeine, how many moles of caffeine are in one cup?

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How many Na+ ions are in a mole of Na2SO4? How many SO42- ions?

Verified video answer for a similar problem:

Key Concepts

Mole Concept

Ionic Compounds

Chemical Formula Interpretation

How many Na⁺ ions are in a mole of Na₂SO₄? How many SO₄^2- ions?