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A sample of water is to be analyzed for solids content. Ten liters (10.0 L) of water are passed through a filter initially weighing 15.0 g. After drying at 105 oC, the filter plus residual weighs 43.0 g. The filter is heated to 550 oC, and the filter plus residual then weighs 37.0 g. Another 10.0 L sample of the same water is evaporated, without filtering, yielding a residual mass of 40.0 g. This residual is heated to 550 oC and the remaining mass is reduced to 25.0 g. What are the values for TS and TDS for this water?
What mass of HCl gas must be added to 1.00L of a buffer solution that contains [acetic acid]= 2.0M and [acetate]= 1.0M
Determine qp for this reaction using deltaH = qp *Just scratching the surface on enthalpy, the help in understanding the process in full is much appreciated
Suppose you measured the pressure with a barometer which was not vertical. You measured the pressure to be 752mmHg and then noticed the barometer
For the set of elements Li, O, Ne, and Na which element has the largest atomic radius? Explain any deviation from the expected pattern.
Calculate the solubility of calcium oxalate in plain water and the concentrations of calcium and oxalate ions in a 0.010 M Ca(NO3)2 solution
In an experiment 1.65g of lead(ii) nitrate react with .327g of zinc. What is the mole relationship between the lead nitrate and the zinc.
The system CO2(g) + H2(g) *) H2O(g) + CO(g) is at equilibrium at some temperature. At equilibrium a 4.00 L vessel contains 1.00 mole CO2, 1.00 mole H2, 2.40 moles H2O, and 2.40 moles CO.
Demonstrate that the moalr enthalpy is equal to the molar energy for a collection of one-dimensilonal harmonic oscillators.
In a flame test experiment, sodium gives the brightest and most persistent color in the flame. Do you think that potassium could be detected visually in the presence of sodium
Give TWO possible reactions you could use in each case and write an equation for each reaction.
at 1 atm, how much energy (kJ) is required to heat 81.0g of H2O(s) at -22.0 degrees celcius to H2O(g) at 119.0 degrees celcius?
At what temperature does benzene boil when the external pressure is 480 ?
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