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.

Give the set of reactants (including an alkyl halide and a nucleophile) that could be used to synthesize the following ether: draw the molecules on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars, including charges where needed. ch3ch2och2ch2chch3 | ch3

Awoman's basketball has a circumference between 28.5 and 29.0 inches and a maximum weight of 20 ounces (two significant figures). what are these specifications in units of centimeters and grams?

The rate constant for the reaction below is 6.2 x 10−5 mol l−1 s −1. if the initial concentration of a is 0.0500 m, what is its concentration after 115 s?