Virtual Lab
Active
"С
Step 7: Put the Metal in the Water and Measure
Temperature Changes (Lead)
The temperature at 300 seconds (5 minutes) is the
Initial temperature of metal =
final temperature of both the metal and the water.
Record it to the nearest 0.1°C in the data table.
Initial temperature of water =
"С
Final temperature of both =
27
DONE
26
25
24
23
250 ml
150
Continue (60s more)
05:00

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)

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