# chemistry hw

Dimensional Analysis NEW

A projectile is fired at 869 mi/hr. How fast is that in meters per second, to the nearest whole value? Use the conversion factor 1 mile = 1610 m.

A bicycle completed the first 300.0 m of a ride in 48.8 s. What was the bicycle’s average speed in kilometers per hour?

The nutrition label on a bottle of cola reports that a 8.0 fl oz serving contains 26 g of sugar. How many kilograms of sugar are in a 2.0 L bottle of cola? Use the conversion 1 L = 33.8 fl oz.

You decide to take your car on a drive through Canada, where gas is sold in liters and distances are measured in kilometers. Suppose your car’s gas efficiency is 28.0 mi/gal. How many liters of gas will you need to complete a 350 km trip? Use the conversions 1 gal = 3.78 L and 1 km =

0.6214 mi.

A certain city covers an area of 47.5 mi2. How many square kilometers is this? Use the conversion factor 1 mile = 1.61 km.

The density of aluminium is 2.7 g/cm3. Find the mass in grams of a bar of aluminum measuring 2.0 cm by 4.0 cm by 13.0 cm.

The density of ethanol is 0.789 g/mL. If you need 422.0 g of ethanol for an experiment, how many milliliters would you measure out?