Video: Tus naj npawb ntawm moles hauv 500 l ntawm nws roj ntawm STP yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Kev piav qhia: 1) Ntawm STP , 1 mol ua ntawm gas ua 22.4 L ntawm ntim. Yuav muaj 22 moles nyob rau hauv 500 L ntawm helium roj ntawm STP.
Ib yam li ib tus tuaj yeem nug, pes tsawg moles hauv 4.48 L ntawm Nws cov pa ntawm STP?
Yog li, peb paub tias ntawm STP , 1 mole ntawm roj yog 22.4 litres , yog li koj yuav multiply 4,48l ua los ntawm (1 mole /22.4 L ) kom tau ib yam dab tsi (Kuv tsis muaj lub laij lej rau kuv yog li kuv tsis muaj qhov tseeb).
Tsis tas li ntawd, koj yuav nrhiav tau pes tsawg tus moles ntawm STP? Mus los ntawm grams rau qab , faib cov grams los ntawm molar pawg. 600 g 58.443 g/mol = 10.27 mol NaCl. Nws tau pom tias 1 mol ntawm cov pa roj ntawm STP (Standard Temperature and Pressure = 0°C and 1 atm) occupies 22.4 L. 6.00 mol × 22.4 L1 mol = 134.4 L ntawm CO.
Ib yam nkaus, pes tsawg moles hauv 9.63 l ntawm h2s roj ntawm STP?
0.430 ml yog tus naj npawb ntawm moles/molecules hauv 9.63 | ua h2gas. Nws tau raug pov thawj los ntawm Einstein thiab ntau lwm tus kws tshuaj uas. 430 ml yog qhov siv tau.
Muaj pes tsawg moles nyob hauv ib litre roj?
22.4
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