Mole ConceptHard
Question
The average density of the universe as a whole is estimated as 3×10–29 g/ml. If we assume that the entire mass is only H atoms, then what is the average volume of space that contains one H atom?
Options
A.111.11 L
B.1.8 × 10−5 L
C.55.56 L
D.3.6 × 10−5 L
Solution
Volume of one H-atom = $\frac{1}{6 \times 10^{23} \times 3 \times 10^{- 29}} = 5.56 \times 10^{4}\text{ ml}$
Create a free account to view solution
View Solution FreeMore Mole Concept Questions
The internal energy change when a system goes from state A to B is 40 kJ/mole. If the system goes from A to B by a rever...An organic compound "P" of molecular formula gives positive lodoform test but negative Tollen's test. When "P" is treate...The enthalpy of vapour is 10 kcal/mole higher than liquid at 350 K and 2 atm. Under given conditions, the difference in ...The O18/O16 ratio in some meteorites is greater than that used to calculate the average atomic mass of oxygen on earth. ...Two bulbs A and B contains 16 g O2 and 16g O3, respectively. Which of the statements are true ?...