Round your final numerical answer to the nearest 100th (0.01). 35 g of sodium reacts with water to produce sodium hydroxide and hydrogen gas. What is percent
yield if in the lab 63 grams of sodium hydroxide was obtained?
Hint: Calculate the theoretical yield for grams of sodium hydroxide (ignoring 63 grams). 63 grams is your
actual. Your answer should be a percentage (no % sign needed).

tracks, burrows, eggshells, nests, tooth marks, or gastroliths

i do not get it   at all

answerspecific gravity;

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