Page 29 - DEFTERİM KİMYA 10
P. 29
1. Ünite: Kimyanın Temel Kanunları ve Kimyasal Hesaplamalar
SIRA S ZDE
A. Aşağıda verilen ifadeler doğru ise “D”, yanlış ise “Y” harfini ifadenin başındaki kutucuğa yazınız. Yanlış
ifadelerin altına doğrusunu yazınız.
DOĞRU-YANLIŞ
Bir atom kütlesinin N atomu kütlesine kıyaslanmasıyla bulunan sayı bağıl atom kütlesidir.
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1 mol element atomunun gram cinsinden kütlesi o elementin mol kütlesidir.
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Normal koşullar altında 1 mol gaz 11,2 litre hacim kaplamaktadır.
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Avogadro sayısı 6,02 x 10 tür ve N A ile gösterilir.
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0,25 molü 4 gram olan atomun kütlesi 100 g/mol’dür.
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İzotopların doğada bulunma yüzdeleri dikkate alınarak ortalama atom kütlesi hesaplanır.
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1,806 x 10 tane CH 4 molekülü 3 moldür.
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