Chemistry ki taiyari kar rahe students ke liye ek simple aur clear jawab lekar aaye hain. Agar aap soch rahe hain ki what is the mass of 10 mole of sodium sulphite, toh iska seedha jawab hai 1260 grams.
Humari team ne NCERT Class 9 aur official chemistry sources check kiye hain, aur yeh step-by-step solution aapke exam ke liye perfect hai. Sodium Sulphite ka formula Na₂SO₃ hota hai, aur iska molar mass 126 g/mol hai.
Key Takeaways
- Final Answer: 10 mole sodium sulphite ka mass 1260 grams hota hai (NCERT ke anusaar).
- Molar Mass: Na₂SO₃ ka molar mass 126 g/mol hai; kuch sources 126.05 g/mol batate hain.
- Formula Used: Mass = Number of moles × Molar mass, yani 10 × 126 = 1260g.
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What Is Sodium Sulphite (Na₂SO₃)?
Sodium Sulphite ek inorganic sodium salt hai jiska chemical formula Na₂SO₃ hota hai. Yeh ek white odorless powder hota hai jo food preservative ke roop me kaafi use hota hai.
Humein mili jankari ke anusaar, iska CAS number 7757-83-7 hai aur ise E-221 code se bhi jaana jaata hai. Iska matlab hai ki yeh reducing agent aur antioxidant dono ke taur par kaam karta hai.
Students ke liye ise samajhna important hai kyunki NCERT Class 9 ke Chapter 3 me yeh sawaal aata hai.
What Is the Molar Mass of Sodium Sulphite?
Molar mass nikalne ke liye humein har element ka atomic mass jodna padta hai. Sodium (Na) ka atomic mass 23 hai, Sulphur (S) ka 32 aur Oxygen (O) ka 16 hota hai.
Neeche di gayi atomic composition table me sab kuch clearly diya gaya hai. Yeh basic concept samajhne se aapka mole calculation bahut aasaan ho jayega.
Atomic Composition of Na₂SO₃
| Element | Symbol | Number of Atoms | Atomic Mass (g/mol) | Total Mass |
|---|---|---|---|---|
| Sodium | Na | 2 | 23 | 46 |
| Sulphur | S | 1 | 32 | 32 |
| Oxygen | O | 3 | 16 | 48 |
| Total | Na₂SO₃ | 6 atoms | – | 126 g/mol |
Is table se saaf pata chalta hai ki Na₂SO₃ ka molar mass 126 g/mol aata hai. Sodium ke do atoms milkar 46g dete hain, jabki oxygen ke teen atoms 48g contribute karte hain.
Humari team ne yeh calculation Teachoo NCERT solution se verify kiya hai. Aap iska detail Teachoo ke official NCERT page par bhi dekh sakte hain.
What Is the Mass of 10 Mole of Sodium Sulphite? Step-by-Step Calculation
Ab hum main sawaal par aate hain, yani what is the mass of 10 mole of sodium sulphite. Iske liye ek simple formula use hota hai jo neeche diya gaya hai. Mass = Moles × Molar Mass — bas isi ek line me poora jawab chhupa hai.
Humein mili jankari ke anusaar, yeh NCERT Question 7(c) ka exact solution hai.
Molar Mass Calculation Steps
| Step | Description | Calculation | Result |
|---|---|---|---|
| Step 1 | Formula likhein | Na₂SO₃ | – |
| Step 2 | Na ka mass jodein | 2 × 23 | 46g |
| Step 3 | S ka mass jodein | 1 × 32 | 32g |
| Step 4 | O ka mass jodein | 3 × 16 | 48g |
| Step 5 | Molar mass total | 46+32+48 | 126g |
| Step 6 | 10 moles ka mass | 10 × 126 | 1260g |
Toh final answer clear hai — 10 mole sodium sulphite ka mass 1260 grams hota hai. Ek baat dhyaan rakhein ki jab hum 126.05 g/mol ka precise value use karte hain (jaise PubChem batata hai), tab jawab 1260.5 grams aata hai.
Dono values exam me sahi maani jaati hain, isliye tension mat lein. What is the mass of 10 mole of sodium sulphite ka rounded answer hamesha 1260g hi likha jaata hai.
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Why Do Some Sources Say 126.05 g/mol?
Kuch students confuse ho jaate hain ki kabhi 126 toh kabhi 126.05 kyun aata hai. Iska reason simple hai — atomic masses ke rounded aur exact values ka difference.
NCERT me round figures (23, 32, 16) use hote hain, jabki scientific databases precise decimals lete hain. Humari team ne PubChem ka official Sodium Sulfite page check kiya, jahan molecular weight 126.05 g/mol diya gaya hai. Isliye 10 moles = 1260.5g bhi bilkul theek hai.
Molar Mass Value Comparison
| Source | Molar Mass | Mass of 10 Moles |
|---|---|---|
| NCERT (Teachoo) | 126 g/mol | 1260g |
| PubChem | 126.05 g/mol | 1260.5g |
| Vedantu | 126.05 g/mol | 1260.5g |
What Are the Physical Properties of Sodium Sulphite?
Exam me sirf calculation nahi, balki physical properties bhi puche jaate hain. Sodium Sulphite ek white crystalline powder hai jiska koi smell nahi hota.
Humein mili jankari ke anusaar, iski density 2.633 g/cm³ hoti hai aur yeh paani me ghulnashil hai. Yeh non-combustible hai, matlab aag nahi pakadta.
Key Physical Properties
| Property | Value |
|---|---|
| Molecular Formula | Na₂SO₃ |
| Molar Mass | 126.05 g/mol |
| Appearance | White odorless powder |
| Density | 2.633 g/cm³ |
| Solubility | Soluble in water (~30 g/100g at 25°C) |
| pH | ~9 (alkaline) |
| CAS Number | 7757-83-7 |
What Is Avogadro’s Number and Its Role?
Mole concept samajhne ke liye Avogadro’s Number jaanna zaroori hai. Ek mole me hamesha 6.023×10²³ particles hote hain, chahe woh atoms ho ya molecules.
Isi number ki wajah se hum microscopic particles ko gram me convert kar paate hain. Jab hum kehte hain 10 moles, toh iska matlab 6.023×10²⁴ molecules of Na₂SO₃.
Yeh concept what is the mass of 10 mole of sodium sulphite ke peeche ka core logic hai.
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Where Is Sodium Sulphite Used?
Sodium Sulphite sirf exam ka topic nahi, balki real life me bhi bahut kaam aata hai.
Yeh food preservative ke roop me foods ko fresh rakhta hai.
Humari team ne dekha ki yeh paper industry, water treatment aur photography me bhi use hota hai. FDA ne ise safe additive maana hai jab sahi tarike se use kiya jaaye.
Common Uses of Na₂SO₃
| Industry | Use |
|---|---|
| Food | Preservative (E-221), antioxidant |
| Paper & Pulp | Bleaching aur processing |
| Water Treatment | Oxygen scavenger, reducing agent |
| Photography | Developer preservative |
| Cosmetics | Stabilizing agent |
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How Does Na₂SO₃ Compare With Similar Compounds?
Kai baar students Sodium Sulphite (Na₂SO₃) ko Sodium Sulphate (Na₂SO₄) se confuse kar dete hain. Yeh galti exam me marks kaat sakti hai, isliye dhyaan dein. Dono ka formula thoda alag hai aur molar mass bhi different aata hai. Neeche di gayi table se yeh confusion door ho jayega.
Related Compounds Comparison
| Compound | Formula | Molar Mass | Oxygen Atoms |
|---|---|---|---|
| Sodium Sulphite | Na₂SO₃ | 126 g/mol | 3 |
| Sodium Sulphate | Na₂SO₄ | 142 g/mol | 4 |
| Sodium Bisulphite | NaHSO₃ | 104 g/mol | 3 |
Yaad rakhein — Sulphite me 3 oxygen hote hain aur Sulphate me 4 oxygen. Isi choti si baat se poora calculation badal jaata hai.
FAQs
Q1: What is the mass of 10 mole of sodium sulphite?
A: 10 mole sodium sulphite ka mass 1260 grams hota hai, NCERT ke anusaar.
Q2: What is the molar mass of Na₂SO₃?
A: Iska molar mass 126 g/mol hai; precise value 126.05 g/mol hoti hai.
Q3: Sodium sulphite ka chemical formula kya hai?
A: Iska formula Na₂SO₃ hota hai, jisme do sodium atoms hote hain.
Q4: Mass nikalne ka formula kya hai?
A: Formula hai Mass = Moles × Molar mass, bilkul simple aur seedha.
Q5: 1 mole sodium sulphite ka mass kitna hota hai?
A: Ek mole ka mass 126 grams hota hai, jo iske molar mass ke barabar hai.
Q6: 126 aur 126.05 me kaunsa sahi hai?
A: Dono sahi hain — NCERT rounded value leta hai, databases precise decimal.
Q7: Kya exam me 1260.5g likh sakte hain?
A: Haan, agar aap 126.05 g/mol use karte hain toh 1260.5g bilkul theek hai.
Q8: Sodium ka atomic mass kitna hai?
A: Sodium (Na) ka atomic mass 23 hota hai calculation ke liye.
Q9: Sulphur aur oxygen ka atomic mass kya hai?
A: Sulphur (S) ka 32 aur Oxygen (O) ka 16 atomic mass hota hai.
Q10: Avogadro’s number kya hai?
A: Ek mole me 6.023×10²³ particles hote hain, ise Avogadro’s number kehte hain.
Q11: Yeh sawaal kis NCERT chapter se hai?
A: Yeh Class 9 Chapter 3 – Atoms and Molecules ka Question 7(c) hai.
Q12: Sodium sulphite kaisa dikhta hai?
A: Yeh ek white odorless powder hota hai jiska koi smell nahi hota.
Q13: Iski density kitni hai?
A: Sodium Sulphite ki density 2.633 g/cm³ hoti hai.
Q14: Kya Na₂SO₃ paani me ghulta hai?
A: Haan, yeh paani me achhe se ghulta hai, lagbhag 30g per 100g water.
Q15: Sodium sulphite ka pH kitna hota hai?
A: Iska pH lagbhag 9 hota hai, yani yeh alkaline nature ka hai.
Q16: Yeh compound kis industry me use hota hai?
A: Yeh food, paper, water treatment aur photography me kaam aata hai.
Q17: E-221 kya hota hai?
A: E-221 sodium sulphite ka food additive code hai jo preservative ke roop me use hota hai.
Q18: Sodium sulphite aur sulphate me kya difference hai?
A: Sulphite (Na₂SO₃) me 3 oxygen hote hain, sulphate (Na₂SO₄) me 4 oxygen.
Q19: Kya sodium sulphite jalta hai?
A: Nahi, yeh non-combustible hai aur aag nahi pakadta.
Q20: 10 moles me kitne molecules hote hain?
A: 10 moles me 6.023×10²⁴ molecules hote hain sodium sulphite ke.
Q21: What is the mass of 10 mole of sodium sulphite in kg?
A: 1260 grams yani 1.26 kilograms hota hai 10 moles ka mass.
Q22: Yeh sawaal exam ke liye important hai kya?
A: Haan, mole concept boards aur competitive exams me bahut baar puchha jaata hai.
Q23: Molar mass ka unit kya hota hai?
A: Molar mass ka unit grams per mole (g/mol) hota hai.
Q24: Sodium sulphite ka CAS number kya hai?
A: Iska CAS number 7757-83-7 hai official records ke anusaar.
Q25: Verified information kahan se milegi?
A: Aap Teachoo aur PubChem ki official websites se cross-check kar sakte hain.
Toh dosto, ab aapko what is the mass of 10 mole of sodium sulphite ka poora aur verified jawab mil gaya hai.
Humari team umeed karti hai ki yeh step-by-step solution aapke exam me help karega. Aise hi simple explanations ke liye humein follow karte rahein.
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