A280. l kiln is used for vitrifying ceramics. it is currently operating at 915 ∘c , and the pressure is 1.075 atm . how many moles of air molecules are within the confines of the kiln?

3.0857 moles of air

Explanation:

For this situation, we will use the ideal gas wet: PV = nRT

⇒ with P = pressure (in atm)

⇒ with V = volume (in liter)

⇒ with n = number of moles of gas

⇒ with R = the ideal gas constant = 0.0821 L * atm * K^-1 * mol^-1

⇒ with T = the absolute temperature (in Kelvin)

  ⇒ 915 °C = 915 + 273.15 K = 1188.15 K

To calculate the number of moles of air we have to distort the formule:

n= (P*V) / (R*T)   = (1.075 atm * 280 L) / ( 0.0821 L * atm * K^-1 * mol^-1  * 1188.15 K)

n = 3.0857 moles of air

hloride, what is the mass of calcium in

explanation:

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.