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M concentration of hypochlorite in the buret solution . -original household bleach solution was diluted 50:1 to obtain the hypochlorite solution in the buret. -concentration of hypochlorite ion in the original bleach solution is 0.2667 M. ****NEED ANSWERS TO THE FOLLOWING Questions****: 1. Give 2 reasons for experimental error, that would result in a positive or negative error. 2. Explain 2 advantages and 2 disadvantages to the colorimetric method to determine the concentration of species over the classical titration method used in previous experiments. 3.Fully explain two disadvantages of the colorimetric method to determine the concentration of species over te classial titration method 4. using two chemichal reactions explain how iodate ions and ypochlorite ions both act as oxidizing agents
Two determinations of the dissolved oxygen content of a 200 mL sample of water, made five days apart, gave 5.3 ppm and 2.2 ppm of dissolved O2 respectively.
What must be the atomic mass of the metal M If A sample of the compound MSO 4 weighing 0.1131 g reacts with barium chloride and yields 0.2193 g BaSO4.?
Using a sample of 0.0355 gram of an unknown molecular compound is dissolved in 1.000 g of liquid camphor at 200.0°C. Calculate the molar mass of the unknown compound if the camphor freezes at 157.7°C upon cooling.
Calculate the final temperature when a 22.0 gram sample of ice at 0oC is placed into a styrofoam cup containing 113 grams of water at 77.1 oC. Assume that there is no loss or gain of heat from the surroundings.
if 40.0 kJ of energy is absorbed by 500.0 g of water at 10.0 degrees celcius what is the final temperature of water?
How many grams of copper are in the necklace? 3. If 18-karat gold has a density of 15.5 , what is the volume in cubic centimeters?
Pure gold can be made into extremely thin sheets called gold leaf. Suppose that 5.0 x 102 kg of gold is made into gold leaf having an area of 3620 m2.
Determine how many grams of methane is required to form 43.0 grams of CHCl3?
When two atoms of 2H (deuterium) are fused to form one atom of 4He (helium), the total energy evolved is 3.83 × 10-12 joules. What is the total change in mass
What is the coefficient of H2O when the following equation is properly balanced with smallest set of whole numbers?
A particular snack mix contains 1.30 g of salt per 100 g of the mix. How much mass of the mix can be consumed and still be within the FDA limit of 2.40 g of salt.
What type of signal(s) would you observe in the mass and/or infrared spectrum of the following compound? c6h12cho A) A signal at 1600 cm-1
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