Calculate the ph of a buffer consisting of 0.50 m hf and 0.45 f- a) before b) after addition of 0.40 g of naoh to 1.0 l of the buffer

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space