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  _____     _____               ______   _____    
 /  ___||  |  ___||   ____     /_   _// |  __ \\  
| // __    | ||__    |    \\    -| ||-  | |  \ || 
| \\_\ ||  | ||__    | [] ||    _| ||_  | |__/ || 
 \____//   |_____||  |  __//   /_____// |_____//  
  `---`    `-----`   |_|`-`    `-----`   -----`   
                     `-`

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Text this: Effect of pH on zinc oxide powder prepared by a chemical co-precipitation method