Since the question has pressure, temperature, and volume as variables, in order to arrive at an answer the combined gas law will be needed to arrive at an answer. The Combined Gas Law is a combination of Boyle's Law (pressure and volume are inversely proportional when temperature is constant) and Charle's Law (volume and temperature are proportional when pressure is constant) and is used when neither volume, pressure nor temperature is constant.
Combine Gas Law Equation: P₁V₁ ÷ T₁ = P₂V₂ ÷ T₂
The following values are what is known from the question:
the initial pressure (P₁) = 1 atm; the final pressure (P₂) is 0.5 atm,
the initial volume (V₁) = 300 mL or 0.3 L; the final volume (V₂) = 1 L
the initial temperature (T₁) = 27 °C
then we can substitute these into the equation to find the final temperature (T₂).
P₁V₁ ÷ T₁ = P₂V₂ ÷ T₂
∴ by substituting the known values,
⇒ (1 atm) (0.3 L ) ÷ (27 °C) = (0.5 atm)(1 L) ÷ T₂
⇒ T₂ = [ (0.5 atm) (1 L) (27 °C) ] ÷ (1 atm) (0.3 L )
⇒ T₂ = [13.5 atm · L · °C] ÷ [0.3 atm · L]
⇒ T₂ = 45 °C
Thus the new temperature of the gas is 45 °C.
Answer = 4.5
Rationale:
the element Mg comes with a 2+ ion and NO3 comes with -1 ion thus 3 * 1.5 M = 4.5 basically look up what mg ion is on google and it says mg+2 and no3 ion no3- im assuming you cant though so look at the formula.
Mg(NO3)2, mg gave 2 to NO3 but where is mg's number? its 1 so 2+1 = 3
* # M = ans
Explanation:
Nitrous acid is prepared in situ from hydrochloric acid and sodium nitrate because it is a weak acid and unstable. It only exists in an aqueous solution.
Nitrous acid is an unstable acid which gets decompose into the water , nitrogen dioxide and nitrogen monoxide gas.
Whereas nitric acid is highly stable acid which can be easily prepared from its reagent and it can easily be stored for future use.
Answer:
uh-
Explanation:
i have no idea what is this pls