Compute and record for the experiment

Reference no: EM13256117

Please help me I have been trying to figure these question out for 2 days now and i have no idea. This is my first summer chem college class online and im clueless. Dont care if you give me the exact answer just please tell me how to do it!!! I would very much appreciate it!!! T.T

1. Calculate and record the following for the experiment performed with 20g KClO?:

(a) mass of the crucible with manganese(IV) dioxide (in grams): 54.200g

(b) mass of the crucible after potassium chlorate has been added (in grams): 74.200g

(d) mass of potassium chloride (in grams):

(e) mass of oxygen in sample of potassium chlorate (in grams):

(f) mass percent of oxygen in potassium chlorate:

Reference no: EM13256117

Questions Cloud

Explain ethylamine and acetone and aniline : Consider the compounds water, ethylamine, acetone, and aniline, whose Kb values can be found here. Classify them by whether they can be appreciably (Keq>1) protonated by: pyridinium, CH3OH2 , both, or neither.

Determine the speed with which the object hits the floor : An object with a mass of m = 5.3 kg is attached to the free end of a light string wrapped around a reel of radius R = 0.255 m and mass of M = 3.00 kg, Determine the speed with which the object hits the floor

Explain solution of the monoprotic acid and propionic acid : Calculate the Ka value of a 0.2 M solution of the monoprotic acid, propionic acid, CH3CH2CO2H. The measured pH is 2.44.

Determine the energy delivered in each pulse : A high-energy pulsed laser emits a 1.0-ns-longpulse of average power 1.7×1011W . The beam is nearly a cylinder 2.5×10?3m in radius and it travels in free space. Determine the energy delivered in each pulse.

Compute and record for the experiment : Calculate and record the following for the experiment performed with 20g KClO. mass of the crucible with manganese(IV) dioxide (in grams): 54.200g

What average force does the bullet exert on the target : In a ballistics test, a 25.0g bullet traveling horizontally at 1200m/s goes through a 40.0cm -thick 350kg stationary target, What average force does the bullet exert on the target

Explain the ligands and the complex : In the following compound [CoCl(NH3)4(H2O)]SO4, write the formula and charge(if applicable) for: a) the ligands b) the complex c) the coordination sphere

What is the force of friction on the driver and buggy : A horse is pulling a buggy. the total force by the horse is 475N applied horizontally. What is the force of friction on the driver and buggy

Explain a piece of dry ice solid carbon dioxide : A piece of dry ice (solid carbon dioxide) with a mass of 31.5 g is allowed to sublime (convert from solid to gas) into a large balloon.

User Account

All Pages