The balance between sweet and sour is crucial to the majority of cocktails and consistently producing balanced cocktails is made easier when using sugar...
Yes, as 500ml of water weighs 500g if combined with 1kg of sugar this would make a 2:1 by mass rich syrup with 66.7 brix.
Sim, como 500ml de água pesa 500g se combinado com 1kg de açúcar isso daria um xarope rico em massa 2:1 com 66,7 brix.