Se tratează 133,33g de magneziu de puritate 90% cu o soluție de acid clorhidric. Reacția chimică are loc cu randament de 80%.
a) Ce masă de sare se poate obține?
b) Ce volum de gaz se poate culege?

is there any options? maybe im just not seeing them but i need the options to

-love shrooms

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