Osmotic pressure can be calculated using the following equation:
Here,
C representated concentration
R represented gas constant
T represented temperature
representated osmotic pressure
R=0.0821 atm L mol ⁻¹
T = 25 + 273 = 298 K
C=
Given mass of the substance= 6.00 g
Volume= 1 L
=0.75 atm
Putting all the values in the equation:
Molar mass of the substance= 195 g mol⁻¹.
Answer:
See below.
Explanation:
The period is not the same regardless of the string length.
The longer the length the greater is the period ( the period varies directly with the square root of the length).
The equation of the relationship is T = 2π√(l/g) where l = the length of the string and g is the acceleration due to gravity.
Answer: 8 Moles of Oxygen
Explanation: The formula shows that there are (exactly) 4 oxygen atoms in each mole or formula unit. Therefore 4 * 2.00 = 8.
Moles pf mgcl2= 2,11/M mgcl2=2,11/95= 0,0222
Molarity=0,0222/1,5=0,0148 M.
I hope this is correct.