One cubic millimeter (mm³) of blood contains 7.0 x 10⁶ red blood cells. How many red blood cells are in 1.0 L of blood? Recall that 1 mL = 1 cm³. a. 7.0 × 10¹⁸ red blood cells

b. 7.0 × 10⁷ red blood cells

c. 7.0 × 10¹² red blood cells

d. 7.0 × 10⁹ red blood cells

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percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally