Answer:To find the percent by mass of salt in the solution:1. The mass of salt is 10 grams.2. The mass of water is 50 grams.3. The total mass of the solution is 10 grams (salt) + 50 grams (water) = 60 grams.The percent by mass is calculated as:(10 grams / 60 grams) × 100 = 16.67%So, the percent by mass of salt in the solution is 16.67%.