Answer:
The answer to your question is letter E. 288.4 g/mol
Explanation:
Data
Number of carbons = 19
mass percent of carbon = 79.12
molar mass = ?
Process
1.- Calculate the molar mass of 19 atoms of carbon
Atomic mass of carbon = 12 g
Atomic mass of 19 atoms of carbon = 228 g
2.- Use proportions to calculate the mass of testosterone
228 g --------------- 79.12 %
x -------------- 100 %
x = (228 x 100) / 79.12
Simplify
x = 22800 / 79.12
Molar mass of testosterone = 288.2 g
Answer:
Separating the nails is so easy because some are attracted to a magnet and some are not also you could pick them out by hand and separate them.
Explanation:
I hope this helps
your welcome :)
Answer:
Mgf2 Bond type
Therefore, one Mg2+ needs two F– ions to balance. The 2+ of the Mg is balanced by having two -1 charged ions. Therefore, the formula of the compound is MgF2. The subscript two indicates that there are two fluorines that are ionically bonded to magnesium.
Explanation:
hope it helps
A because if weather is bad it can Break the mountains down hope this is helpful
Answer: 59.24 atm
Explanation:
Given that:
Original Volume of gas V1 = 2.7L
Temperature T1 = 42.7°C
Convert Celsius to Kelvin
(42.7°C + 273 = 315.7K)
Pressure P1 = 684.9 torr
Final Volume V2 = 0.14 L
Final temperature T2 = 803.1°C
Convert Celsius to Kelvin
(803.1°C + 273 = 1076.1K)
Final pressure = ?
Then, apply the combined gas equation
(P1V1)/T1 = (P2V2)/T2
(684.9 torr x 2.7L)/315.7K = (P2 x 0.14L)/1076.1K
1849.23/315.7 = 0.14P2/1076.1
Then, cross multiply
1849.23 x 1076.1 = 315.7 x 0.14P2
1989956.403 = 44.198P2
Divide both sides by 44.198
1989956.403/44.198 = 44.198P2/44.198
45023.67 torr = P2
Now, convert the pressure in torr to atmosphere
If 760 torr = 1 atm
45023.67 torr = Z atm
Then, cross multiply
760 torr x Z = 45023.67 torr x 1 atm
Z = 45023.67 torr / 760 torr
Z = 59.24 atm
Thus, the new pressure of the gas will be 59.24 atm
