Thursday

December 18, 2014

December 18, 2014

Posted by **will** on Wednesday, September 8, 2010 at 10:28pm.

A gas can holds 1.7gal of gasoline. What is this quantity in cubic centimeters?

I know that 1gal=3.785L

I know that 1L=1000cm^3

I have tried 1.7gal*3.785L/1gal=6.4345cm^3.

I just can not figure out what I am doing wrong.

- chemistry -
**will**, Wednesday, September 8, 2010 at 10:31pmThe other two questions that I can not set up for conversions is

8.86*10^11m converted to gigameters

1.57*10^-10m converted to picometers

- chemistry -
**DrBob222**, Wednesday, September 8, 2010 at 10:45pmYour first one is great but you stopped too soon.

1.7 gal x (3.785L/gal) = 6.4345 L (Look at the units. gal cancels and you are left with L. Now you convert to cm^3 by

6.4345 L x (1000 cc/1L) = 6,434.5 cc.

There are two significant figures in the number of 1.7 gal; therefore, you should round the final answer to 2 places. That would be 6,400 cc.

There are 10^9 m in 1 Gm.

There are 10^12 pm in 1 m.

- chemistry -
**will**, Wednesday, September 8, 2010 at 10:52pmI am still lost on setting up the last 2.

- chemistry -
**will**, Wednesday, September 8, 2010 at 11:04pmSo do I set this up as:

8.86*10^11m (1Gm/10^9m)=8.86*10^11/10^9 since my meters cancel? Which then gives me 8.86^20

- chemistry -
**DrBob222**, Thursday, September 9, 2010 at 12:02amYour set up is right. Your math is wrong.

That gives you 8.86 x 10^2 = 886 gigameters. (and you were smart to set up up that way to make the meters cancel and leave gm.) When you divide exponents you subtract; therefore 10^11/10^9 = 10^2.

**Answer this Question**

**Related Questions**

Chemistry - Regular gasoline (C8H18) reacts with oxygen gas to form carbon ...

Chemistry - A gas can holds 1.5 of gasoline, what is this quantity in cubic ...

Chemistry - If the density of gasoline is 0.66 g/ml , how many kilocalories of ...

Math - I am having a hard time with these problems and could you show me how to ...

Math - I have to make up a story problem that divides 4/5 by 2/5 .... I'm having...

Algebra Help - I am not sure how to set this problem up.. A car uses 12 L of ...

Chemistry - An automobile gasoline tank holds 20.0 gal when full. How many ...

physics - A 2.60 kg steel gas can holds 15.0 L of gasoline when full. What is ...

physics - A 2.60 kg steel gas can holds 15.0 L of gasoline when full. What is ...

physics - A 2.60 kg steel gas can holds 15.0 L of gasoline when full. What is ...