# Chemistry **URL:** https://sorumatik.co/c/english/chemistry/67.md?page=1 [En son](https://sorumatik.co/latest.md) · [Kategoriler](https://sorumatik.co/categories.md) · [Etiketler](https://sorumatik.co/tags.md) **Page:** 2 --- ## [How is the periodic table used to determine the properties of elements?](https://sorumatik.co/t/how-is-the-periodic-table-used-to-determine-the-properties-of-elements/20686)
**Author:** [@Dersnotu](https://sorumatik.co/u/Dersnotu)\ **Yanıtlar:** 1\ **Son güncelleme:** [Ağustos 21, 2023, 6:08ös UTC](https://sorumatik.co/t/how-is-the-periodic-table-used-to-determine-the-properties-of-elements/20686 "2023-08-21T18:08:35Z")
how is the periodic table used to determine the properties of elements? --- ## [A student obtains a sample of a pure solid compound. in addition to avogadro’s number, which of the following must the student know in order to determine how many molecules are in the sample?](https://sorumatik.co/t/a-student-obtains-a-sample-of-a-pure-solid-compound-in-addition-to-avogadro-s-number-which-of-the-following-must-the-student-know-in-order-to-determine-how-many-molecules-are-in-the-sample/20685)
**Author:** [@Dersnotu](https://sorumatik.co/u/Dersnotu)\ **Yanıtlar:** 1\ **Son güncelleme:** [Ağustos 21, 2023, 6:05ös UTC](https://sorumatik.co/t/a-student-obtains-a-sample-of-a-pure-solid-compound-in-addition-to-avogadro-s-number-which-of-the-following-must-the-student-know-in-order-to-determine-how-many-molecules-are-in-the-sample/20685 "2023-08-21T18:05:32Z")
a student obtains a sample of a pure solid compound. in addition to avogadro’s number, which of the following must the student know in order to determine how many molecules are in the sample? --- ## [How many moles are in 2.70 x 1024 particles?](https://sorumatik.co/t/how-many-moles-are-in-2-70-x-1024-particles/9358)
**Author:** [@Dersnotu](https://sorumatik.co/u/Dersnotu)\ **Yanıtlar:** 1\ **Son güncelleme:** [Ocak 29, 2023, 4:27ös UTC](https://sorumatik.co/t/how-many-moles-are-in-2-70-x-1024-particles/9358 "2023-01-29T16:27:42Z")
how many moles are in 2.70 x 1024 particles? --- ## [Find the de Broglie wavelength of 2 MeV proton. Mass of proton =1.64×10−27kg,h=6.625×10−34Js](https://sorumatik.co/t/find-the-de-broglie-wavelength-of-2-mev-proton-mass-of-proton-1-64x10-27kg-h-6-625x10-34js/8326)
**Author:** [@Dersnotu](https://sorumatik.co/u/Dersnotu)\ **Yanıtlar:** 0\ **Son güncelleme:** [Ocak 15, 2023, 12:21ös UTC](https://sorumatik.co/t/find-the-de-broglie-wavelength-of-2-mev-proton-mass-of-proton-1-64x10-27kg-h-6-625x10-34js/8326 "2023-01-15T12:21:11Z")
Find the de Broglie wavelength of 2 MeV proton. Mass of proton =1.64×10−27kg=1.64×10-27kg,h=6.625×10−34Js --- ## [A sample of a compound is made up of 57.53 g c, 3.45 g h, and 39.01 g f. determine the empirical formula of this compound](https://sorumatik.co/t/a-sample-of-a-compound-is-made-up-of-57-53-g-c-3-45-g-h-and-39-01-g-f-determine-the-empirical-formula-of-this-compound/3816)
**Author:** [@Dersnotu](https://sorumatik.co/u/Dersnotu)\ **Yanıtlar:** 1\ **Son güncelleme:** [Kasım 18, 2022, 7:12öö UTC](https://sorumatik.co/t/a-sample-of-a-compound-is-made-up-of-57-53-g-c-3-45-g-h-and-39-01-g-f-determine-the-empirical-formula-of-this-compound/3816 "2022-11-18T07:12:19Z")
a sample of a compound is made up of 57.53 g c, 3.45 g h, and 39.01 g f. determine the empirical formula of this compound. --- ## [A compound consists of 37.51 g c, 4.20 g h, and 58.29 g o. what is the empirical formula?](https://sorumatik.co/t/a-compound-consists-of-37-51-g-c-4-20-g-h-and-58-29-g-o-what-is-the-empirical-formula/3815)
**Author:** [@Dersnotu](https://sorumatik.co/u/Dersnotu)\ **Yanıtlar:** 1\ **Son güncelleme:** [Kasım 18, 2022, 7:07öö UTC](https://sorumatik.co/t/a-compound-consists-of-37-51-g-c-4-20-g-h-and-58-29-g-o-what-is-the-empirical-formula/3815 "2022-11-18T07:07:43Z")
a compound consists of 37.51 g c, 4.20 g h, and 58.29 g o. what is the empirical formula? --- ## [A compound is made up of 28.2 g n, 20.8 g p, 42.9 g o, and 8.1 g h. what is the empirical formula?](https://sorumatik.co/t/a-compound-is-made-up-of-28-2-g-n-20-8-g-p-42-9-g-o-and-8-1-g-h-what-is-the-empirical-formula/3814)
**Author:** [@Dersnotu](https://sorumatik.co/u/Dersnotu)\ **Yanıtlar:** 1\ **Son güncelleme:** [Kasım 18, 2022, 7:04öö UTC](https://sorumatik.co/t/a-compound-is-made-up-of-28-2-g-n-20-8-g-p-42-9-g-o-and-8-1-g-h-what-is-the-empirical-formula/3814 "2022-11-18T07:04:34Z")
a compound is made up of 28.2 g n, 20.8 g p, 42.9 g o, and 8.1 g h. what is the empirical formula? --- ## [Van der Waal's equation explains the behaviour of \_\_\_\_\_](https://sorumatik.co/t/van-der-waals-equation-explains-the-behaviour-of/3772)
**Author:** [@Dersnotu](https://sorumatik.co/u/Dersnotu)\ **Yanıtlar:** 1\ **Son güncelleme:** [Kasım 17, 2022, 11:24öö UTC](https://sorumatik.co/t/van-der-waals-equation-explains-the-behaviour-of/3772 "2022-11-17T11:24:10Z")
Van der Waal’s equation explains the behaviour of \_\_\_\_\_ A) Ideal gases B) Real gases C) Mixture of gases D) Diatomic gases --- ## [Howard is working with a cleaning solution that contains sodium hydroxide](https://sorumatik.co/t/howard-is-working-with-a-cleaning-solution-that-contains-sodium-hydroxide/3387)
**Author:** [@Dersnotu](https://sorumatik.co/u/Dersnotu)\ **Yanıtlar:** 1\ **Son güncelleme:** [Kasım 9, 2022, 9:39ös UTC](https://sorumatik.co/t/howard-is-working-with-a-cleaning-solution-that-contains-sodium-hydroxide/3387 "2022-11-09T21:39:29Z")
howard is working with a cleaning solution that contains sodium hydroxide. although he is using gloves, when he pours the solution to dilute it for cleaning use, he spills a bit on his arm. his arm feels slimy to the tou… --- ## [To calculate the density of an object you must know two pieces of information. one thing you need to know is the volume of the object. what else do you need to know?](https://sorumatik.co/t/to-calculate-the-density-of-an-object-you-must-know-two-pieces-of-information-one-thing-you-need-to-know-is-the-volume-of-the-object-what-else-do-you-need-to-know/3384)
**Author:** [@Dersnotu](https://sorumatik.co/u/Dersnotu)\ **Yanıtlar:** 1\ **Son güncelleme:** [Kasım 9, 2022, 7:56ös UTC](https://sorumatik.co/t/to-calculate-the-density-of-an-object-you-must-know-two-pieces-of-information-one-thing-you-need-to-know-is-the-volume-of-the-object-what-else-do-you-need-to-know/3384 "2022-11-09T19:56:00Z")
To calculate the density of an object you must know two pieces of information. one thing you need to know is the volume of the object. what else do you need to know? [Önceki sayfa](https://sorumatik.co/c/english/chemistry/67.md)