Answer:
D. 60.3 kilometers per hour
Explanation:
Hello,
In this case, we first compute the miles in kilometres:
Then the minutes in hours:
Finally, the velocity:
Thus, answer is D. 60.3 kilometers per hour
Best regards.
Molar gas=given volume ÷ molar volume
x=0.5÷22.4=0.02
now=0.02×2.5=0.05
mass =0.05