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Consider the titration of 20. mL of 0.10 M oxalic acid (a weak diprotic acid). What volume (in mL) of 0.10 M solution of NaOH is needed to fully titrate the sample of acid?
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What is the mass of NaOH present in grams, given that a 100. mL solution has a concentration of 0.125 M?
The mass of a sample of CaCO3 is 751 grams How many total atoms are present in this sample?
A watch glass and Filter paper weighing 41.060g was used to collect the CuSCN precipitate in this experiment. After drying, the precipitate, watch glass, and filter paper weighed 42.525g. If the sample alloy used for the ...
Does dissolved solids such as sugar and salt modify/change the boiling point of water; do mixtures have the same boiling point as pure substances?
With the provided indicated equilibrium constant, Is the equilibrium mixture made up of predominately reactants, predominately products or significant amounts of both products and reactants? 2 O 3 (g) -------- 3 O 2 (g ...
What wavelength of light (nm) is required to eject an electron with a speed of 2.0 x 10 6 m/s from a metal with a threshold energy of 3.4 x 10 -18 J?
An iron skillet weighing 1.28kg is heated on a stove to 178°C. Suppose the skillet is cooled to room temperature., 21°C. How much heat energyin joules must be removed to effect this cooling? The specific heat of iron is ...
Suppose 1.7 g of zinc is treated with 6.2 g of pure hydrogen chloride. What is the maximum mass (in g) of hydrogen gas that can be produced?
A 41 kg person walking 5.6 km/hr requires 758 kJ of energy per hour. How much further does he have to walk to consume the addition energy contained i 320 g of ground beef relative to 320 g of broiled chicken? The energy ...
N2O5 decomposes following first order kinetics. If 75% of the original sample of N2O5 has decomposed after 2240 minutes, what is the value of k, the rate constant, at this temperature(in min-1)?
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