In chemistry class, each of the 82 students needs 72 mL of base. How many one- liter bottles of base need to be available? Help?

100 mL = 0.1 L

Just do the math using this conversion factor

6:

72mL=0.072L
0.072mL*82=5.904L rounds up to 6 bottles

To find out how many one-liter bottles of base are needed, you need to calculate the total volume of base required by all the students and then divide it by the volume of each one-liter bottle.

First, determine the total volume of base required by all the students.
Since each student needs 72 mL of base and there are 82 students, you can calculate the total volume required by multiplying these values:
Total volume required = 72 mL/student * 82 students

Next, convert the total volume required from milliliters (mL) to liters (L) since we are looking for the number of one-liter bottles needed.
To convert milliliters to liters, divide the value by 1000:
Total volume required (in liters) = Total volume required (in mL) / 1000

Finally, divide the total volume required (in liters) by the volume of each one-liter bottle to calculate the number of bottles needed:
Number of bottles needed = Total volume required (in liters) / 1 liter

Let's do the calculations:
Total volume required = 72 mL/student * 82 students
= 5904 mL

Total volume required (in liters) = 5904 mL / 1000
= 5.904 L

Number of bottles needed = 5.904 L / 1 L
= 5.904 bottles

Therefore, you would need approximately 5 or 6 one-liter bottles of base to be available for the chemistry class.