The molecular weight of the substance is 30.46 g/mol.
<h3>What is molar mass?</h3>
Molar mass can be defined as the mass is divided by the number of moles of the substance.
Step 1: calculating the moles
Given, the mass is 177 g
Pressure is 1.18 atm.
The volume is 2.30 L
By the formula of ideal gas
Step2 -calculate the molecular weight
The moles are 0.581
Thus, the molecular weight is 30.46 g/mol
Learn more about molar mass
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First, we have to write a balanced equation for the production of ammonia (NH₃) from hydrogen gas (H₂) and nitrogen gas (N₂):
N₂ + 3H₂ → 2NH₃
Now, the mole ratio of H₂ : NH₃ is 3 : 2 based on the coefficients of the balanced equation.
If the moles of H₂ = 15 moles
then the moles of NH₃ produced = (15 mol ÷ 3) × 2
= 10 mol
Thus, the number of moles of NH₃ produced when 15 mol of hydrogen gas is combined with excess nitrogen gas is 10 mol.
The friction force
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<span>Ca^(2+). Calcium is an alkaline earth metal with an atomic number of 20. Its electronic configuration is (2, 8, 8, 2). From the electronic configuration it would be observed that calcium has two valence electrons. Calcium shares these two electrons with non metals like sulphur in an ionic bond to obtain an outer shell which is full octet. Let me use Sulphur. When calcium gives out its two valence electrons its electronic configuration becomes (2, 8, 8) thereby obtaining a stable out shell and the calcium ion becomes Ca^(2+). The sulphur also obtains a stable octet because it has 6 valence electron initially.</span>
Answer:
d
Explanation:
4.65 * 0.86 * 3.82 = 15.27
