Se disuelven 15 gramos de carbonato de sodio de 140 gramos de agua, luego se le añaden 50 ml de solución de 40% m/m y densidad de 1,7 g/ml. Determina la nueva % m/m de la solución resultante

1. calculate the approximate enthalpy of the reaction in joules. estimate that 1.0 ml of vinegar has the same thermal mass as 1.0 ml of water. iqnore the thermal mass of th sodium bicarbonate. note: it takes about 4.2 joules () to change 1.0 gram (1.0ml) of water 1.0 c

What shape would a molecule with two bound groups and two lone pairs have?

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?