Depends on how much you make, how much you work and province.
Assuming you are in Ontario, you're working 40 hours a week, 52 weeks per year (so whole year) and are paid the minimum Ontario wage of $11.25 you'd make $23,400 a year and pay $2,494 in taxes.
If you're in British Columbia, you're working 30 hours a week (lowest still considered full time), 52 weeks per year and are being paid BC minimum wage of $10.45 (lowest in Canada) you'd make $16,302 and pay $746 in taxes - BC taxes are a bit lower.
tl;dr; at least around $750. More if you work more than the minimum 30h, are paid more than minimum wage or are in a province with higher taxes or minimum wage.
http://www.ey.com/CA/en/Services/Tax/Tax-Calculators-2015-Personal-Tax