Robi 10 Minute School Jashore Hub

Robi 10 Minute School Jashore Hub Robi 10 minute school Jashore Hub

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07/21/2022
06/25/2022

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â˜¯ī¸ āĻ•ā§āϝāĻžāϞāϕ⧁āϞ⧇āϟāϰ āĻŦāĻžāĻĻ⧇ PH āύāĻŋāĻ°ā§āϪ⧟āĻƒđŸ˜â­• āĻ•ā§āϝāĻžāϞāϕ⧁āϞ⧇āϟāϰ āĻŦāĻžāĻĻ⧇ PH āύāĻŋāĻ°ā§āϪ⧟ āĻ•āϰāϤ⧇ āĻšāϞ⧇ āĻĒā§āϰāĻĨāĻŽā§‡ āĻ•ā§Ÿā§‡āĻ•āϟāĻŋ log āĻāϰ āĻŽāĻžāύ āϜāĻžāύāĻž āϜāϰ⧁āϰāĻŋāĨ¤đŸ˜āϝ⧇āĻŽāύ:log1 = 0l...
05/21/2022

â˜¯ī¸ āĻ•ā§āϝāĻžāϞāϕ⧁āϞ⧇āϟāϰ āĻŦāĻžāĻĻ⧇ PH āύāĻŋāĻ°ā§āϪ⧟āĻƒđŸ˜

⭕ āĻ•ā§āϝāĻžāϞāϕ⧁āϞ⧇āϟāϰ āĻŦāĻžāĻĻ⧇ PH āύāĻŋāĻ°ā§āϪ⧟ āĻ•āϰāϤ⧇ āĻšāϞ⧇ āĻĒā§āϰāĻĨāĻŽā§‡ āĻ•ā§Ÿā§‡āĻ•āϟāĻŋ log āĻāϰ āĻŽāĻžāύ āϜāĻžāύāĻž āϜāϰ⧁āϰāĻŋāĨ¤đŸ˜
āϝ⧇āĻŽāύ:
log1 = 0
log2 = 0.3
log3 = 0.5
log4 = 0.6
log5 = 0.7
lag6 = 0.8
log7 = 0.9

#āĻāĻŦāĻžāϰ āφāĻŽāϰāĻž āĻāĻ•āϟāĻž example āĻĻ⧇āĻ–āĻŦāĨ¤

1ī¸âƒŖ 0.005M HCl āĻāϰ PH āĻ•āϤ?✅

ã€Ŋī¸ āĻĒā§āϰāĻĨāĻŽā§‡ āĻĻ⧇āĻ–āϤ⧇ āĻšāĻŦ⧇ āĻĻāĻļāĻŽāĻŋāϕ⧇āϰ āĻĒāϰ āĻ•ā§ŸāϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻž āφāϛ⧇ āĨ¤ āϝ⧇ āĻ•ā§ŸāϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻž āĻĨāĻžāĻ•āĻŦ⧇ āĻĒā§āϰāĻĨāĻŽ āϏāĻ‚āĻ–ā§āϝāĻž āĻšāĻŋāϏ⧇āĻŦ⧇ āϏ⧇āϟāĻŋāϕ⧇ āύāĻŋāϤ⧇ āĻšāĻŦ⧇āĨ¤ āϝ⧇āĻŽāύ āωāĻĒāϰ⧇āϰ Math āϟāĻŋāϤ⧇ āĻĻāĻļāĻŽāĻŋāϕ⧇āϰ āĻĒāϰ āϤāĻŋāύāϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻž āφāϛ⧇ āϤāĻžāχ āĻĒā§āϰāĻĨāĻŽ āϏāĻ‚āĻ–ā§āϝāĻž āĻšāĻŦ⧇ 3āĨ¤
āĻāĻŦāĻžāϰ āφāĻŽāϰāĻž āĻĻ⧇āĻ–āĻŦā§‹ āĻĻāĻļāĻŽāĻŋāϕ⧇āϰ āĻĒāϰ āĻļ⧇āώ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻ•āϤāĨ¤ āĻĻ⧇āĻ–āĻžāϰ āĻĒāϰ āĻĒā§āϰāĻĨāĻŽ āϏāĻ‚āĻ–ā§āϝāĻž āĻĨ⧇āϕ⧇ āĻĻāĻļāĻŽāĻŋāϕ⧇āϰ āĻĒāϰ āĻļ⧇āώ āϏāĻ‚āĻ–ā§āϝāĻžāϰ log āĻŦāĻŋā§Ÿā§‹āĻ— āĻ•āϰāĻŦ⧇āĨ¤
āϝ⧇āĻŽāύ example āĻāϰ āĻļ⧇āώ āϏāĻ‚āĻ–ā§āϝāĻž āĻšāϞ⧋ 5 āϤāĻžāχ pH āĻšāĻŦ⧇
= 3 - log5
= 3 - 0.7 [log5 = 0.7]
= 2.3

⭕āφāϰ⧋ āĻ•āĻŋāϛ⧁ example āϞāĻ•ā§āĻˇā§āϝ āĻ•āϰāĨ¤âœ…

2ī¸âƒŖ 0.0003M HCl āĻāϰ PH āĻ•āϤ?

ã€Ŋī¸ āĻāĻ–āĻžāύ⧇ āĻĻāĻļāĻŽāĻŋāϕ⧇āϰ āĻĒāϰ āϏāĻ‚āĻ–ā§āϝāĻž āφāϛ⧇ 4 āϟāĻŋ āĻāĻŦāĻ‚ āĻļ⧇āώ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻšāϞ⧋ 3āĨ¤
PH = 4 - log3
= 4 - 0.5
= 3.5
⭕ āĻĻā§āĻŦāĻŋāĻ•ā§āώāĻžāϰāĻ•ā§€ā§Ÿ āĻāϏāĻŋāĻĄā§‡āϰ āĻ•ā§āώ⧇āĻā§‡âœ…

â˜ĸī¸ 0.002 M H2SO4 āĻāϰ PH āĻ•āϤ?

ã€Ŋī¸ āĻāĻ–āĻžāύ⧇ āĻĻāĻļāĻŽāĻŋāϕ⧇āϰ āĻĒāϰ āϏāĻ‚āĻ–ā§āϝāĻž āĻšāϞ⧋ 3 āϟāĻŋ āĻāĻŦāĻ‚ āĻļ⧇āώ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ 2 āĻ•āĻŋāĻ¨ā§āϤ⧁ H2SO4 āĻāϰ āϤ⧁āĻ˛ā§āϝ āϏāĻ‚āĻ–ā§āϝāĻž āĻšāϞ⧋ 2 āϤāĻžāχ āĻļ⧇āώ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻšāĻŦ⧇ 2*2 = 4
āϏ⧁āϤāϰāĻžāĻ‚ PH āĻšāĻŦ⧇
= 3 - log4
= 3 - 0.6
= 2.4

⭕ power āĻāϰ āĻ•ā§āώ⧇āĻā§‡ PH āύāĻŋāĻ°ā§āĻŖā§Ÿâœ…

âš ī¸ 3 * 10 ^ -7 M HCl āĻāϰ PH āĻ•āϤ?

ã€Ŋī¸ āĻāχ āϧāϰāύ⧇āϰ Math āĻāϰ āĻ•ā§āώ⧇āĻā§‡ Power āϟāĻžāϕ⧇ āĻĒā§āϰāĻĨāĻŽ āϏāĻ‚āĻ–ā§āϝāĻž āĻšāĻŋāϏ⧇āĻŦ⧇ āύāĻŋāϤ⧇ āĻšāĻŦ⧇āĨ¤āĻāĻŦāĻ‚ āĻĒā§āϰāĻĨāĻŽ āϝ⧇ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻĨāĻžāĻ•āĻŦ⧇ āϏ⧇āϟāĻŋāϰ log āύāĻŋāϤ⧇ āĻšāĻŦ⧇āĨ¤

PH = 7 - log3
= 7 - 0.5
= 6.5

āϏāĻ•āϞāϕ⧇ āψāĻĻ āĻŽā§āĻŦāĻžāϰāĻžāĻ•đŸŒ™āϤāĻžāĻ•ā§āĻŦāĻžāĻŦā§āĻŦāĻžāϞāĻžāĻ˛ā§āϞāĻžāĻšā§ āĻŽāĻŋāĻ¨ā§āύāĻž āĻ“ā§ŸāĻž āĻŽāĻŋāύāϕ⧁āĻŽ!
05/02/2022

āϏāĻ•āϞāϕ⧇ āψāĻĻ āĻŽā§āĻŦāĻžāϰāĻžāĻ•đŸŒ™

āϤāĻžāĻ•ā§āĻŦāĻžāĻŦā§āĻŦāĻžāϞāĻžāĻ˛ā§āϞāĻžāĻšā§ āĻŽāĻŋāĻ¨ā§āύāĻž āĻ“ā§ŸāĻž āĻŽāĻŋāύāϕ⧁āĻŽ!

04/13/2022

āĻ¸ā§āĻŦāĻĒā§āύ āϭ⧇āϙ⧇ āϝāĻžāĻ“ā§ŸāĻžāϰ āĻĒāϰāĻ“ āϝ⧇ āĻœā§‡āϗ⧇ āĻ“āϠ⧇ āύāĻž, āϏ⧇ āĻŽā§ƒāϤāĨ¤

04/10/2022

āϤ⧁āĻŽāĻŋ āχāĻĢāϤāĻžāϰ āĻ•āϰ⧇ Rest āĻ•āϰāϤ⧇āϛ⧋ āφāϰ āϤ⧋āĻŽāĻžāϰ āĻŦāĻ¨ā§āϧ⧁ āφāϰ⧇āĻ•āϟāĻž Chapter āĻļ⧇āώ āĻ•āϰ⧇ āĻĢ⧇āϞāϤ⧇āϛ⧇!🙂

Any one do This math?
04/09/2022

Any one do This math?

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