<h3>
Answer:</h3>
0.643 moles
<h3>
Explanation:</h3>
We are given;
Density of nitrogen gas as 1.20 g/L
Volume nitrogen as 15.0 L
We are required to calculate the number moles of nitrogen gas;
<h3>Step 1: Determine the mass of nitrogen gas</h3>
We know the density is given by dividing mass by volume.
Therefore, to get the mass;
- Mass = Density × volume
- Mass = 1.20 g/L × 15.0 L
= 18 g
<h3>Step 2: Determine the mass of nitrogen gas </h3>
We know that to get the number of moles, we divide mass by molar mass;
That is, moles = Mass ÷ Molar mass
But, molar mass of nitrogen gas is 28 g/mol
Therefore;
Moles of nitrogen gas = 18 g ÷ 28 g/mol
= 0.643 moles
Therefore, the number of moles of nitrogen gas 0.643 moles
Answer:
Cotton and Jute
Explanation:
Cotton and jute are the two most important fibre crops of India. Cotton provides the basic raw material to cotton textile industry. Cotton is a kharif crop which requires 6 to 8 months to mature. The main cotton producing states are Gujarat, Maharashtra and Andhra Pradesh. Next to cotton, jute is the second important fibre crop of India. India is one of the principle producers of jute in the world. The major jute producing states of India are West Bengal, Assam, Bihar, Odisha, Andhra Pradesh and Meghalaya.
Huh I don’t get it what is this
I think the correct answer from the choices listed above is the second option. The other true statement would be that the solution contains more hydronium ions than hydroxide ions. Since <span>pH = -log[H3O+]. As pH decreases, the acidity increases. Hope this answers the question.</span>
KI or "Potassium Iodide" is a combination between a metal (potassium) and a nonmetal (iodine). In order to bond, iodine has to accept an electron from potassium, making them both ions. This combination between a metal cation and a nonmetal anion is an ionic bond.
