3. Sodium tetraborate, Na2B407, is produced when sodium hydroxide neutralizes H3BO3. How much boric acid, H3BO3, is needed (in grams) to
make 150 metric tons of sodium tetraborate? Assume 1 metric ton equals
1000 kg and water is the second product.

Which other elements contain the same number of outer electrons as sodium

The following questions a24 - a26 relate to 100 ml of 0.0150 m solution of benzoic acid (c6h3cooh). ka(c6h3cooh) = 6.4 x 10^-5. what is the ph of the solution after the addition of 1 x 10^-3 moles of naoh? you may assume no volume change to the solution upon addition of the naoh.

Calculate the temperature rise when 0.2g of propane is used to heat 400cm cubed of water.