A tank contains 10,000 gallons of a solution that is 5 percent sodium chloride by volume. If 2500 gallons of water evaporate from the tank, the remaining solution will be approximately what percentage of sodium chloride?

• 6.67% of sodium chloride of solution is remains.
  
  Before the evaporation occurs,the tank contains,
  10,000 *5% ==> 10,000 *5/100 = 500 gallons of sodium chloride.
  
  After the evaporation occurs,the tank contains,
  10,000 - 2,500 = 7,500 gallons of solution.(Since 500gallons are sodium chloride)
  
  So,
  500/7500 = 1/15
  =0.0666666667 *100
  =6.67% of sodium chloride.
• 12 years agoHelpfull: Yes(23) No(3)
• 5% of 10000 =500 gallon of salt & 9500gallons of water...9500-2500=7000gallon of water remains..so 500/(7000+500)=6.67% salt solution
• 12 years agoHelpfull: Yes(8) No(2)
• ans is 6.66%
  sol:5% NaCl of 10,000 gallons=500 gallons
  remaining sol after 2500 gallons evaporation =7500 gallons
  % of NaCl of sol remaining = (500*100)/7500=6.66%
  
• 12 years agoHelpfull: Yes(7) No(1)
• 5%0F 10000=500
  WATER =10000-500=9500
  WHEN 2500 WATER EVOPARATES, 7000 WILL REMAIN
  500/7000*100=7.14%
• 12 years agoHelpfull: Yes(3) No(10)
• in 10000gallon 5% = 500gallon sodium chloride
• 11 years agoHelpfull: Yes(0) No(3)
• 0.6666 ans
  
• 11 years agoHelpfull: Yes(0) No(3)
• solution=10,000 gallons of nacl and water.
  NaCl=5%x10,000= 500
  therefore, water= 9500.
  
  now water evaporated=2500
  remaining water= 7000.
  NaCl=500
  Total=7500
  
  Req perecentage= 500x1007500
  = 10015
  = 6.6667%
  
• 8 years agoHelpfull: Yes(0) No(0)