text: const mongoose = require("mongoose");
  const Schema = mongoose.Schema;
  
  const acidSchema = new Schema({
    name: {type: String, required:true},
    pKa: {type: String, required:true},
    Ka: {type: String, required:true}
  });
  
  const Acid = mongoose.model("Acid", acidSchema);
  
  module.exports = Acid;