The answer should be B. hope this helped ;)
Answer:
I believe it would be 2
Explanation:
if there are 2 nitrogen molecules then there would have to be 2 hydrogen molecules but this could be completely wrong
if this happens to be right, ur welcome :3 here's a Jay Jay pic for u cuz why not
Answer:
0.375 grams are needed to make 25 mL solution.
Explanation:
Mass of
cuprous nitrate required to make 1 l of solution = 15 g.
1 L = 1000 mL
Mass of
cuprous nitrate required to make 1000 mL of solution = 15 g
Mass of
cuprous nitrate required to make 1 mL of solution:

Mass of
cuprous nitrate required to make 25 mL of solution:

0.375 grams are needed to make 25 mL solution.
Answer:
V = 48.64 L
Explanation:
Given data:
Mass of CO₂ = 85.63 g
Temperature = 273 K
Pressure = 1 atm
Volume of CO₂ = ?
Solution:
Number of moles of CO₂:
Number of moles = mass/molar mass
Number of moles = 85.63 g / 40 g/mol
Number of moles = 2.14 mol
Volume in Litter:
PV = nRT
R = general gas constant = 0.0821 atm.L/mol.K
1 atm× V = 2.14 mol ×0.0821 atm.L/mol.K ×273 K
V = 48.64 atm.L / 1 atm
V = 48.64 L