Se desean preparar 300 mL de una disolución de NaOH al 15 % P/V a partir de una disolución concentrada de hidróxido de sodio cuya densidad es de 1,39 g/mL y su título es 40 % P/P. a) ¿Cuántos mL de la disolución concentrada se necesitarán?

Need asap question 1 minerals are organic compounds. true false question 2 what vitamin can be found in foods like oranges, grapefruits, and broccoli? a. vitamin a b. vitamin k c. vitamin c d. vitamin d question 3 what are minerals? a. chemical elements that are needed for body processes. b. organic compounds that the body needs in small amounts to function properly. c. small molecules used to build proteins. d. an organic compound that is insoluble in water and includes fats. question 4 how many types of vitamins does the human body need? a. 15 b. 11 c. 13 d. 17 question 5 vitamins are a good source of energy. true false