URGENT Ejercicios de Descenso Crioscopico

1-Calcular el descenso crioscópico de una solución de ClNa 0,5 molal sabiendo que Kc: 1,87ºC/m.

2-Calcular el punto de congelación de una sc 2 m de glucosa en agua. TºCagua= 0ºC, Kc= 1,86º/m.

3-Calcular el punto de congelación de una sc compuesta por 86g de glucosa (C6H12O6) y 500 gs de agua. Kc=1,86ºC/m.

4-Calcular el descenso crioscopico de una sc de anticongelante 10%m/msv disuelto en agua (C2H4(OH)2).

Which statement describes covalent bases? they have hydroxide ions. they produce hydrogen ions. they are often amines. they are named the same as ionic compounds.

Microtubular fibers that assist in the movement of chromosomes during nuclear division in conjunction with proteins, makes up the small and large organelle pieces that assemble prior to translation three-base nucleotide sequence that can complementarily pair with the functional transcript, allowing a particular material to be brought to a ribosome particular time in the cell cycle when the cell’s systems determine if the cellular conditions are appropriate to continue through the cycle time in the cell’s cycle when proteins are made and organelles are duplicated enzyme that allows proper nucleotide bonding during transcription specific dna sequence which will initiate gene transcription division of the cell’s cytoplasm specific bond that forms between two amino acids when a carboxyl group binds to a amino group three-base sequence that does not code for a particular amino acid a paired organelle which facilitates the formation of movement microtubules time in the cell’s cycle when the microtubular structures exert an equal pressure on the cell’s genetic material

Which substance has non polar covalent bonds