d) Chemical compounds are removed from the coffee grounds and become part of the product. The mass of these can be estimated by looking at instant coffee. Instant coffee is just the solids which remain after the water is removed from liquid coffee. It takes about 1.5 teaspoons of instant coffee to make a 'coffee cup' (150ml) of coffee. The bulk density of instant coffee is 0.15g/ml. A rule of thumb is that it takes 4g of ground coffee to make a cup. Estimate how much coffee solid (\% of original grounds) is extracted from the beans into the coffee. What assumptions did you make