Atomic weight = 197
symbol = Au
electrons = 79
neutrons = 197 - 79 = 118
<u>answer: E</u>
Answer:
299.14 K or 26°C
Explanation:
The ideal gas law, also called the general gas equation, is the equation of state of a hypothetical ideal gas.
The ideal gas law is often written as
PV = nRT
where P ,V and T are the pressure, volume and absolute temperature;
n is the number of moles of gas and R is the ideal gas constant.
n=1.10 x 10^5 mol
V= 2.70 x 10^6 L
P= 1.00 atm= 101.325 kPa
R= 8.314 kPa*L/ mol*K
when the formula is rearranged, T=PV/ nR
T = (101.325kPa * 2.70 x 10^6 L)/ (1.10 x 10^5 mol * 8.314 kPa*L/ mol*K)
T = 299.1421917 K
or
T = 299.14 - 273.15 = 25.99 = 26°C
Answer:
Using general gas laws
P1V1/T1 = P2V2/T2
Where P1=380torr = 380mmHg
Vi = 750ml = 0.75dm3
T1= 8c = 281k
P2=0.2torr= 0.2mmHg
T2= 75c = 348k
V2=?
(380*0.75)/281 = (0.2*V2)/348
V2= 1764.77
Explanation:
Answer:
Explanation:
Hello,
In this case, we work on a dilution process in which we can state that the moles remain the same after the dilution process. In such a way, we can write:
That in terms of molarities and volumes is:
Whereas 
is the initial molarity (3.00 M) of the stock solution, 
the molarity of the diluted solution (0.289 M), 
the aliquot of the stock (concentrated) solution and 
the volume of the diluted solution (100 mL), thus, we compute as required:
Best regards.
The hydrogen is placed on the left side of the periodic table because it follow numerical order of electrons and also it is on the Group 1 due to having one valence electron. Lastly it is in row 1 because the numbers of energy levels a hydrogen atom has.
