Answer:
4.0 moles
Explanation:
The following data were obtained from the question:
Volume (V) = 12L
Pressure = 5.6 atm
Temperature (T) = 205K
Gas constant (R) = 0.08206 atm.L/Kmol
Number of mole (n) =?
Using the ideal gas equation: PV = nRT, the number of mole of the gas can be obtained as follow
PV = nRT
5.6 x 12 = n x 0.08206 x 205
Divide both side by 0.08206 x 205
n = (5.6 x 12)/(0.08206 x 205)
n = 4.0 moles
Therefore, the number of mole of the gas is 4.0 moles
Answer:
The right answer is "![[Na^+]=5.57 \ ppm](https://tex.z-dn.net/?f=%5BNa%5E%2B%5D%3D5.57%20%5C%20ppm)
".
Explanation:
The given values are:
According to the question,
The concentration of standard will be:
= 
= 
= 
Coffee after dilution,
⇒ 
or,
⇒ 
On substituting the values, we get
⇒ 
⇒ 
⇒ 
hence,
In unknown sample, the concentration of coffee will be:
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A is your answer Have a wonderful day
True. Water is a neutral substance so nothing should react to it, this makes it so that no matter how basic a metal is, it reacts the same to water.
2. 0.05733 mol CuCl2 (1 mol Cu(OH)2 / 1 mol CuCl2) = 0.05733 mol Cu(OH)2 <-- It's the same because there's a 1:1 ratio between the reactant and the product.
