Given;
no. of moles (n) = 500 moles
volume (V) = 1.2 l
temperature (T) = 150°C = (150 + 273 )k = 423 k
gas constant (R) = 0.0821 L- atm / mole-K
then,
PV = nRT
P × 1.2 = 500 × 0.0821 × 423
P = 14,470.125 atm
But I guess pressure is too high. Well this should be the way.
Answer:
Explanation:
Moles of NaCl :
Given, Mass of NaCl = 72.24 g
Molar mass of NaCl = 58.44 g/mol
The formula for the calculation of moles is shown below:
Thus,
NaCl is a strong salt. So, moles of chloride ion = 1.2361 moles
Volume = 0.862 L
Answer:
amine
Explanation:
We have to bear in mind that amines are basic compounds. This idea will be very important in attempting to answer this question.
So, when she adds 5% HCl solution in order to extract the organic layer, the amine forms a hydrochloride salt which is contained in the aqueous layer.
The addition of a base such as NaOH leads to the formation of a white precipitate of the amine.
Answer:
Independent variable: AMOUNT OF SUNLIGHT
Dependent variable: HEIGHT OF PLANTS
Experimental group: PLANTS KEPT UNDER BRIGHT SUN LAMPS ALL NIGHT
Control group: PLANTS THAT RECEIVED NORMAL AMOUNT OF SUNLIGHT
Explanation:
Independent variable refers to the variable that is manipulated or changed in an experiment in order to effect a measurable response. In this case, the independent variable is the VARYING AMOUNT OF SUNLIGHT.
Dependent variable is the variable that the experimenter measures or the variable that responds to changes made to independent variable. The dependent variable in this case is the HEIGHT OF PLANTS measured.
Experimental group is the group in an experiment that receives the experimental treatment. In this case, the PLANTS KEPT UNDER BRIGHT SUN LAMPS ALL NIGHT is the experimental group.
Control group is the group that does not receive any experimental treatment/independent variable. In this case, the PLANTS THAT RECEIVED NORMAL AMOUNT OF SUNLIGHT is the control group.
I would think 38n uugghhgffryhn