602,040,706
2x10+8x10+7x10+6x10
The expanded form of 4.067 is, 4+(6x10-2)+(7x10-3)
7384 = 7x10^3 + 3x10^2 + 8x10^1 + 4x10^0
70000
7x10-4
7/10 + 4/7 = (7x7) / (10x7) + (4x10) / (7x10) = (49+40) / 70 = 89/70 = 1 + 19/70
7x10^7
7x10^3 + 4x10^2 + 3x10^1 + 9x10^0
1. 0x10=0 2. 1x10=10 3. 2x10=20 4. 3x10=30 5. 4x10=40 6. 5x10=50 7. 6x10=60 8. 7x10=70 9. 8x10=80 10. 9x10=90 11. 10x10=100 You all ways add a 0 on the number you are time sing by.
By volume or by mass? The sun is 2x10^30 kg. The moon is 7x10^22 kg. The ratio is 28 million (the sun is 28 million times more massive than the moon).
Since H3PO4 has 3 ionizable hydrogens, it will have three Ka values. Approximate values areKa1 = 7x10^-3; Ka2 = 6x10^-8 and Ka3 = 4.5x10^-13
(7x10^3)+(3x10^2)+(7x10^1)+(5x10^0)