std 7 science ch 8,dhoran 7 science swadhyaypothi ch 8,std 7 science path 8 swadhyaypothi,dhoran 7 vigyan ch 8 swa Adhyayanpothi,std 7 science ch 8, ધોરણ સાત વિજ્ઞાન પાઠ આઠ પવન,ચક્રવાત અને વાવાઝોડું,ધોરણ 7 વિજ્ઞાન પાઠ 8 પવન,ચક્રવાત અને વાવાઝોડું,ધોરણ 7 વિજ્ઞાન ચેપ્ટર 8,std 7 science chapter 8 swadhyaypothi

Chapter 8 Detailed Explanation Part 7

An electron enters in a magnetic held of induction 2 m T with velocity of 1.8 xx 10^(7) m/s . The radius of circular path is

Chapter Explanation (Paragraph 5,6 )|Chapter Explanation (Paragraph 7,8 )|Summary

Chapter Explanation (Paragraph 5,6 )|Chapter Explanation (Paragraph 7,8 )|Summary

Out of 100 students, 15 passed in English, 12 passed in Mathmatics, 8 in Science, 6 in English and Mathematics, 7 in Mathematics and Science , 4 in English and Science, 4 in all the three. Find how many passed (i) in English and Mathematics but not in Science. (ii) in Mathematics and Science but not in English. (iii) in Mathematics only. (iv) in more than one subject only.

Chapter Explanation - Para 5, 6|Chapter Explanation - Para 7, 8|Summary

Chapter Explanation - Para 5, 6|Chapter Explanation - Para 7, 8|Summary

What is the pH of 7.0 xx 10^(-8)M acetic acid. What is the concentration of un-ionsed acetic acid. K_(a) of CH_(3)COOH = 1.8 xx 10^(-5) .

How many times of the acetic acid concentration, acetate salt should be added to a given acetic acid solution to obtain a solution of pH = 7.0 ( K_a for CH_3COOH=1.8xx10^(-5) ) .