Molarity = (Mass/ molar mass) x (1/ volume of solution in Litres)
Mass = Molarity x molar mass x volume of solution in Litres
Molarity of Tris = 100 mM = 0.1 M
volume of Tris sol. = 100 mL = 0.1 L
molar mass of Tris = 121.1 g/mol
Hence,
mass of Tris = Molarity of Tris x molar mass ofTris x volume of Tris solution
= 0.1 M x 121.1 g/mol x 0.1 L
= 1.211 g
mass of Tris = 1.211 g
The answer is D jessim should spin the glove quickly while walking in a circle around nancy.
Answer:
Explanation:
Dipole moment = charge x separation of charges
= (2 x 1.6 x 10⁻¹⁹ ) x ( 140 x 10⁻¹² ) coulomb-metre
= 448 x 10⁻³¹coulomb-metre
1 debye = 3.33 x 10⁻³⁰coulomb-metre
Dipole moment in debye = 448 x10⁻³¹ / 3.33 x 10⁻³⁰debye
= 448 x10⁻³¹ / 33.3 x 10⁻³¹
= 13.45 debye
=
