Variables examined. were effects of molar ratios of sodium. hydroxide to magnesium chloride and of. the latter to lactose, reaction temperature, reaction time, and solubility of the. lactose-magnesium hydroxide adduct. Lactose precipitation was increased to a. molar ratio of hydroxide to chloride of 2.0. With that molar ratio at 2.0, precipitation. of lactose increased with increasing molar. ratio of chloride to lactose to 7.0.
Kristine Leahy will replace Jenn Brown as the NBC competition's sideline reporter. There's a change coming to American Ninja Warrior's seventh season. Kristine Leahy has been tapped to co-host the NBC's summer reality competition series, replacing Jenn Brown, The Hollywood Reporter has learned. Leahy will join fellow co-hosts and play-by-play duo Matt Iseman and Akbar Gbajabiamila this season.
She is noted for being the first woman to qualify for the finals of the television sports challenge American Ninja Warrior and the first, and so far only, woman on it to complete a City Finals course (in 2016 Jessie Graff finished second on a City Finals course based on 'the farthest the fastest' but did not complete it).