The atomic mass of cobalt is 58.993 u. What is the mass of a cobalt sample that contains 0.763 moles of cobalt?
A) 39.7 g
B) 40.3 g
C) 43.4 g
D) 45.0 g
E) 45.7 g
Correct Answer:
Verified
Q5: The atomic mass of Mg is 24.305
Q6: The atomic mass of aluminum is 26.982
Q7: The atomic mass of chromium is 51.996
Q8: The atomic mass of cobalt is 58.933
Q9: The atomic mass of helium is 4.0026
Q11: The atomic mass of boron is 10.811
Q12: The atomic mass of phosphorus is 30.974
Q13: The molar mass of Co(NH3)6(ClO4)3 is
A)318.53 u.
B)389.43
Q14: The molar mass of C14H28(COOH)2 is
A)242.40 u.
B)254.41
Q15: The molar mass of Ni(H2O)6Cl2 is
A)157.69 u.
B)193.00
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