Astudent simultaneously prepared two titration mixtures, consisting of diluted bleaching, ki solution, and hcl solution. the student found that the data from the two titrations yielded significantly different percents naocl. explain which determination would give the higher percent naocl. explain what affect the following procedural errors would have on the calculated percent naocl of your bleach solution: a student failed to allow the volumetric pipet to drain completely when transferring the diluted bleaching solution to the flask. a student began the titration with an air bubble in the buret tip. the bubble came out after 5 ml of na2s2o3 solution was released.

Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery

Air is compressed isentropically from an initial state of 300 k and 101 kpa to a final temperature of 1000 k. determine the final pressure using the following approaches: (a) approximate analysis (using properties at the average temperature) (b) exact analysis

Tom is having a problem with his washing machine. he notices that the machine vibrates violently at a frequency of 1500 rpm due to an unknown rotating unbalance. the machine is mounted on 4 springs each having a stiffness of 10 kn/m. tom wishes to add an undamped vibration absorber attached by a spring under the machine the machine working frequency ranges between 800 rpm to 2000 rpm and its total mass while loaded is assumed to be 80 kg a) what should be the mass of the absorber added to the machine so that the natural frequency falls outside the working range? b) after a first trial of an absorber using a mass of 35 kg, the amplitude of the oscillation was found to be 10 cm. what is the value of the rotating unbalance? c) using me-3.5 kg. m, find the optimal absorber (by minimizing its mass). what would be the amplitude of the oscillation of the absorber?