The Erie Canal is famous in song and story. Proposed in 1808 and completed in 1825, the canal links the waters of Lake Erie in the west to the Hudson River in the east. An engineering marvel when it was built, some called it the Eighth Wonder of the World.
Quick Answer. There are 7.09 grams in one-quarter of an international avoirdupois ounce, which is the most commonly used measure of ounces, as of 2014. There are 7.78 grams in one-quarter of a troy ounce, which is commonly used for measuring the mass of precious metals.
To convert ounce to grams, multiply it by 28.3495231. To convert gram to ounce, divide it by 28.3495231. To convert troy ounce to grams, multiply it by 31.1034768. To convert gram to troy ounce, divide by 31.1034768. So half ounce is equal to 28.3495231/2 Grams, which is equal to 14.17476155 grams.