What is the mass in grams of 16.3 mol of the element
nickel, ni?

The mass of 16.3 moles of nickel is 956. 647 g.

Explanation:

Given data:

moles of nickel = 16.3 mol

molar mass of nickel = 58.69 g/mol

mass in gram = ?

solution:

Formula:

number of moles = mass / molar mass

mass = number of moles × molar mass

mass = 16.3 mol × 58.69 g/mol

mass= 956. 647 g

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.