The weight of 16.3 moles of nickel amounts to 956.647 g.
Refer to the attached document for the solution.
To solve for density, you can use the formula--> Density= PM/ RT, where P stands for pressure, M for molar mass, R represents the gas constant, and T is temperature.
P= 1.75 atm
M= 16.01 g/ mol
R= 0.0821 atm·L/ mol·K
T=337 k
Thus, the density calculation becomes: density= (1.75 x 16.01)/ (0.0821 x 337)= 1.01 g/L
Option d is the correct choice, as both belong to the alkali metals category (group one).
