3. Chemical Reactions
Mass Percent
3. Chemical Reactions Mass Percent
11PRACTICE PROBLEM
The nitrogen in urea (CO(NH2)2) and in ammonium nitrate (NH4NO3) is made available to plants as fertilizer. One brand of fertilizer contains 25% urea by mass and costs $3 per kilogram while another brand contains 30.0% ammonium nitrate by mass and costs $2 per kilogram. Determine the more cost-effective source of nitrogen.
The nitrogen in urea (CO(NH2)2) and in ammonium nitrate (NH4NO3) is made available to plants as fertilizer. One brand of fertilizer contains 25% urea by mass and costs $3 per kilogram while another brand contains 30.0% ammonium nitrate by mass and costs $2 per kilogram. Determine the more cost-effective source of nitrogen.