Question

Sulon !

Perform the indicated conversion: 3.06 x 103 cal =
Hide answer choices A
1.37 * 10-3)
B
1.28 x 104
731)
D
7.31 x 105)
E
12.8)

Answer 1

To convert 3.06 x 10³ cal to a more appropriate unit, we can use the conversion factor 1 cal = 4.184 J. Multiplying the given value by the conversion factor gives us 12.8024 x 10³ J, which can be rounded to 12.8 x 10³ J.

Step-by-step explanation:

To perform the indicated conversion, we need to convert from calories to a more appropriate unit. One common unit used in chemistry is joules (J). To convert calories to joules, we use the conversion factor 1 cal = 4.184 J. Therefore, we multiply the given value 3.06 x 10³ cal by the conversion factor:

3.06 x 10³ cal * 4.184 J/cal = 12.8024 x 10³ J

Rounding to three significant figures, the final answer is 12.8 x 10³ J.

Answer 2

Option B (
`1.28* 10^4 \ J`) is the right alternative.

Step-by-step explanation:

Given:

⇒
`3.06* 10^3 \ Cal`

By unit conversation,

`1 \ Cal = 4.2 \ J`

then,

⇒
`3.06* 10^3 \ Cal = 3.06* 10^3* 4.2`

`=12.852* 10^3`

`=1.28* 10^4 \ J`

Thus the above is the right answer.