<u>Answer:</u> The number of moles of nitrogen gas is 0.030 moles
<u>Explanation:</u>
To calculate the number of moles of nitrogen, we use the equation given by ideal gas which follows:
where,
P = pressure of the nitrogen gas = 2.96 atm
V = Volume of the gas = 0.25 L
T = Temperature of the gas = 300 K
R = Gas constant = 
n = number of moles of nitrogen gas = ?
Putting values in above equation, we get:
Hence, the number of moles of nitrogen gas is 0.030 moles
Answer:
I'm pretty sure the answer is D, I could be wrong tho
The number of electrons in an atom's outermost valence shell governs its bonding behaviour. Elements whose atoms have the same number of valence electrons are grouped together in the Periodic Table. ... Nonmetals tend to attract additional valence electrons to form either ionic or covalent bonds.
Well you have to mix chemicals which caused a chemical reaction. When you mix salt and ice the freezing point of liquid changes. the ice gets colder
Answer:
See below.
Explanation:
1. The water here is the solvent, and the 'sugar and fruit specific chemicals' are considered the solute. That is as the solute is the component dissolved in the solvent.
2. The collision theory states that the greater the collisions, the greater the rate of reaction. When powdered sugar is placed in the water (solvent) it occupies more surface area, resulting in more collisions that speed up the rate of reaction, compared to a cube of sugar - that occupies less surface area. Therefore, the powdered sugar dissolved faster.
3. Molarity describes the number of moles of a substance per unit of volume. The standard unit of volume is liter, giving you the standard units (mol/l). Molality describes the number of moles per unit of mass, typically kilograms (mol/kg).
The concentration of a solution can be given in moles of solute dissolved per kilogram of solvent for molality, and moles of solute dissolved in liters of solvent for molarity. Molality is generally used for concentration.
