What is the cod, in mg o2 per litre of the sample
A 25.0 mL sample of river water was titrated with 0.00100 M Na2Cr2O7 and required11.5 mL to reach the end point. What is the COD, in mg O2 per litre of the sample?
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When separated from a water solution, CuSO4 forms a hydrate with 5 water molecules per formula unit. If 38 g of anhydrous CuSO4 are dissolved in water, what mass of the hydrate could be recovered from the solution?
An accelerometer has a seismic mass of 0.05kg and a spring constant of 3 x 10^3 N/m. Maximum mass displacement of 0.02m before the mass hits the stop. The maximum measurable acceleration will be equal to?
particular sample of pure iron requires 0.595 kJ of energy to raise its temperature from 25oC to 45oC. The specific heat of iron is 0.45 J/g oC. What must be the mass of the sample?
Bone was dissolved in hydrochloric acid, giving 45.0 mL of solution containing calcium chloride, CaCl2. To precipitate the calcium ion from the resulting solution, an excess of potassium oxalate was added. The preciCaC2O4, weighed 1.437 g. What was
How would I convert Multisim a circuit that will convert that 0-10VDC signal into a 4-20mA signal for the long haul. And then convert that 4-20mA signal, back into a 0-5V DC signal?
Starting with 50.0 g of CaCO3(s) and 100 mL of 1 M HF, how many moles of CO2 can be produced?
You design a receiver for the 5.8ISM band, using the ZJL-6G+ Minicircuits. It is not correctly matched, with Z0 = 30ohm at +60 degrees. Find S11 from the data sheet at that frequency, noise figure, degradation of NF, system gain, system NF, e
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