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.