सोडियम कार्बोनेट (Na2CO3) के मोलर द्रव्यमान की गणना कीजिए।

  1. 106
  2. 107
  3. 108
  4. 110

Answer (Detailed Solution Below)

Option 1 : 106
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सही उत्तर 106 है।

  • सोडियम कार्बोनेट (Na2CO3) का मोलर द्रव्यमान 106 है।

सोडियम कार्बोनेट (Na2CO3) की मोलर द्रव्यमान की गणना निम्नानुसार की जा सकती है:

  • इसमें सोडियम के दो परमाणु, कार्बन का एक परमाणु और ऑक्सीजन के तीन परमाणु शामिल हैं।

आणविक भार की गणना निम्न प्रकार से की जा सकती है:

Na : 2 x 23.0 =  46

C : 1 x 12.0 = 12

O : 3 x 16 = 48

  • उपरोक्त मानो को जोड़ना अर्थात् 46 + 12 + 48 = 106
  • इस प्रकार, Na2COका मोलर द्रव्यमान 106 g/mole है।

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