Explanation:
Mass of solution , m= 0.94 g + 215 g = 215.94 g
Volume of the solution = V
Density of solution = d = 




Moles of hydrogen = 
Molarity of hydrogen gas:


Molality of hydrogen gas :
Mass of solvent or here it is palladium = 215 g =0.215 kg (1 g = 0.001 kg)


Mass percentage of hydrogen is solution :


Answer:
C- NaCI and Br2
Explanation:
i know because i used this in a test and got 100%
Answer:
the answer is B, pH scale
Answer:
The Independent variable is the variable which does not rely of the other variables. It stays the same.
The Dependent variable is the variable that is measured or changed.
Explanation:
The Independent variable is usually the x value of a table or graph
the Dependent variable is usually the y value of a table or graph
I hope this helps!