Kalkuleta na Molar Mass

Ƙa’ida

Molar mass a cikin g/mol = Σ (adadin atoms na kowane abu × nauyin atom ɗinsa da aka jera). Ga Ca(OH)2, subscript ɗin 2 yana ninka duka O da H: Ca + 2 × O + 2 × H. Teburin da aka gyara yana amfani da ƙimomin zagaye kamar H 1.008, C 12.011, N 14.007 da O 15.999.

Misalin aiki

Ta amfani da wannan teburin, H2O yana da nauyin molar 2 × 1.008 + 15.999 = 18.015 g/mol. Ɓangarorin taro da aka ƙididdige su sune 2.016 ÷ 18.015 ≈ 11.19% hydrogen da 15.999 ÷ 18.015 ≈ 88.81% oxygen. Sauran duba-binciken da aka yi a tebur sune CO2 = 12.011 + 2 × 15.999 = 44.009 g/mol da NaCl = 22.990 + 35.45 = 58.440 g/mol.

Amfani da iyakoki

Wannan kalkuleta yana amfani da tebur mai tsayayyen abu na 38 tare da nauyin atom na gargajiya mai zagaye. Shigar da alamomin abubuwa, ƙidayar lamba mai kyau da kuma baka, ta amfani da mafi yawan haruffan 200 da ƙungiyoyin 32 da aka haɗa. Ba a tallafawa caji, alamun isotope, dabarun tsari da hydrates na digo ba; don CuSO4·5H2O shigar CuSO4H10O5. Tsarin isotopic na halitta na iya canza nauyin atom, don haka waɗannan kimantawa ba sa wakiltar ma'aunin dakin gwaje-gwaje na takamaiman samfuri. Tabbatar da teburin tunani da ake buƙata da rashin tabbas don aikin dakin gwaje-gwaje.

Alamomin da aka Tallafa: H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Br I Ba Pb Ag Au Hg Sn · Nassoshi: CIAAW an taƙaita nauyin atom na yau da kullun (2024)

Sigar tsari: 641112002723 · An duba misali: 2026-10-31

FAQ

Menene mole a cikin sinadarai?

Mole ɗaya ya ƙunshi ainihin 6.02214076 × 10²³ abubuwan asali da aka ƙayyade. Molar mass yana nuna nauyin mole ɗaya a cikin g/mol; ƙimar da aka nuna tana amfani da teburin nauyin atom mai zagaye na wannan kalkuleta.

Me yasa ruwa 18.015 ba 18 ba?

Hydrogen da oxygen suna amfani da matsakaicin nauyin atomic na 1.008 da 15.999 a cikin wannan tebur. Saboda haka 2 × 1.008 + 15.999 = 18.015 g/mol. Wannan ƙima ce ta al'ada; samfurin da aka wadatar da isotope zai iya bambanta.

Ta yaya bakake aiki?

Lambar bayan bakake rufewa tana ninka duk abin da ke cikinta. A cikin Ca(OH)2, 2 tana ninka O da H: Ca + O2 + H2, tana ba da 40.078 + 2 × 15.999 + 2 × 1.008 = 74.092 g/mol.

Me zai faru idan ba a gane sinadarina ba?

Alamomin da aka tallafawa an jera su a sama. Alamar da ba a sani ba tana haifar da kuskure; kalkuleta ba ta yin hasashen taro ko ƙirƙiro ƙima ga wani abu da ba a tallafawa ba.

Ta yaya zan yi amfani da molar mass a aikace?

Don canza taro zuwa moles, raba gram ta hanyar molar mass; don canza moles zuwa taro, ninka. Misali, 36.03 g na ruwa shine 36.03 ÷ 18.015 = 2.00 moles.

Shin nauyin molar yayi daidai da nauyin kwayoyin halitta?

A lissafi, raka'a sun bambanta: nauyin kwayoyin halitta lamba ce ta dangi (marar raka'a ɗaya), nauyin molar shine lambar da aka bayyana a g/mol. Mutane suna amfani da kalmomin a musayar ra'ayi a yawancin mahallin.

Kayan aiki masu alaƙa

• Kalkuleta na pH — sinadarin acid daga yawan sinadarin hydrogen ion
• Mai Canza Nauyi — canza gram, kilogiram da sauran raka'o'in taro
• Mai Canza Girma — yawan maganin da ake amfani da shi don aikin narkewa