please help me solve this with steps You must show all your work, including unit

Question

please help me solve this with steps

You must show all your work, including units, and report final results with the correct number of significant figures on all pre-lab questions, post-lab questions, and laboratory report work (this reminder will not be repeated).

You should have five questions on this pre-lab assignment.

Question number 1.

Perform the following calculation and report the answer to the correct number of significant figures (assume all quantities are measured):

8.9 + 8.133 + 15.73

Question number 2.

Assuming all numbers come from measurements, perform the following calculation and report the answer to the correct number of significant figures

2.252 x 8.7 x (2.97x107)

Question number 3.

Perform the following calculation and report the answer to the correct number of significant figures (assume all quantities are measured):

(4.9 - 14.6) x 3.358

Question number 4.

Calculate the number of meters that are in 702.3 inches. Use 2.54 cm = 1 in and show your work.

Question number 5.

If you have 6.4 L of water, how many cm3 of water do you have

Explanation / Answer

1). Given that 8.9 + 8.133 +15.73

The answer for this question is as follows..

8.9 + 8.133 +15.72 = 32.753....

2). Given that 2.252 x 8.7 x (2.97 x 10^7)

the answer for this is as follows..

2.252 x 8.7 x (2.97 x 10^7) = 2.252 x 25.839 x 10^7 = 58.189428 x 10^7

so, the answer is 58.189428 x 10^7 or 581894280.....

3). Given that (4.9 - 14.6) x 3.358

the answer is as follows..

(4.9 -14.6) x 3.358 = -9.7 x 3.358 = -32.5726...

the answer is -32.5726....

4). given that 702.3 inches, we have to convert it into meters...

also given that 1 inche = 2.54cm....

then 702.3 inches = ?cm

thus 702.3 x 2.54 = 1783.842 cm......

but 100cm = 1 meter

then 1783.842 cm = ? meters...

thus, 1783.842 x1 /100 = 17.83842meters..

thus, 702.3 inches = 17.83842 meters....

5). given 6.4L of water..

we have to convert the liters into cm3...

one liter = 1000cubic centimeters

then 6.4L = ?cm3

thus, 6.4 x 1000 = 6400cm3..

thus, 6.4L = 6400cm3....

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