Question

1. How many atoms are represented by: a. 0.96 moles Ca b. 0.39 moles Ga c. 0.94 moles Ag d. 0.39 moles Mg 2. How may molecules are represented by a. 0.39 moles CH3COOH b. 0.71 moles N2 C. 0.72 moles C&H 206 d. 0.57 moles 02

Answer 1

Here is the solution of your question. If you have any doubt or need any clarification please comment in comment box and will definitely resolve your query. If you find useful please upvote it. Thanks in advance.

atoms Number of atom = mole x 6.02 x 1023 Andle 23 a. Number of Caatom: 0.96x6.02X1023 = 5.78X10 Ib. Number of Gra atom = 0.39 x602x102% - 2:35x100 c. Number of Agatom=0.94x6.02x1023 = 5.66x 1023 d. Number of ing atoma 0.39x6.02x10 23 = 2.35x10 23 2. Number of molecule = mole x 6-02X10" molecules Imole a. Number of Chacoon = 0.39x6.02x10 23 - 2:35x10 23 1 6. Number N2 = 0-7146.02 X1023 = 4-27 X1023 c. Humber of CH 12% = 0.72x6:02x10 ²3 = 4-33810² do Number of O2=0-57x6202x10233.43x1023 23 2. Iskusan mass ef substancelingm) s molea molar moss Q. mass of GH,228 = Gull mol x 180 mm - 1099.8 go b. mass of O2 = 1:89 molx 32gm/mol = 57.6gm c. mass of NaHCO3 = 6Gimol x 849minal = 555. 249m d. mass of na = 1014 mol x 23 gr/mol = 26.22 am Number of moles mass of substance -mo197_mass a mole of Caho = 26.32gm/308/mol = 0.877 mol b. an ole of O2 = 35.87gm/32gm/mol = 1-121 mol c. mole of Na = 92.39 gm/23 gr/mol = 1.865 mol d. mole of CH2= 68.34 gm / 180 g/m 0.38 mol با سا۔۔۔ مالمان را بالا CamScanner