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A solution is prepared from 25.0g of benzene, c6h6 and 25.0g of an unknown compound. The freezing point of this solution is 4.3C. The normal freezing point of benzene is -5.12C/m. Determine the molar mass of the compound.
why does heating dicyclopentadiene form cyclopentadiene, whereas allowing cyclopentadiene to stand at room temperature lead to dicyclopentadiene
Draw Fischer projection formulas of the major product of the reaction between E-2-methyl-3-hexene and aqueous Br2.
A sample of calcium nitrate, Ca(NO3)2, with a formula weight of 164 g/mol, has 5.00 x 1025 atoms of oxygen. How many kilograms of Ca(NO3)2 are present
calculate the minimum number of grams of propane that must be combusted to provide the energy necessary to convert 5.35
A sample of K2S contains 1.35 g of potassium. How many moles of potassium sulfide are present in the sample
why is lithium chlorate be a more practical choice for the "chlorate candle" than either sodium or potassium chlorate
The major isotopes of tungsten are 182W (26.32%), 183W (14.31%), 184W (30.67%), and 186W (28.62%). What is the atomic weight of W?
how many grams of oxygen gas are required to produce 7.68 kj of heat when hydrogen gas burns at constant pressure to
Calculate ΔH° for the reaction -> 2 K(s) + 2 H2O(l) 2 KOH(aq) + H2(g) A 4.85-g chunk of potassium is dropped into 1.06 kg water at 24.0°C.
For a certain glass electrode, the selectivity coefficient for Na+ relative to H+ is 1.0E-12. The electrode is calibrated with NBS standard buffers 6.86 and 9.18,
Carbon tetrachloride, CCl4, has a vapor pressure of 213 torr at 313K and 836 torr at 353K. What is the normal boiling point of CCl4
Gas Chromotography/ Orange oil experiment. Limonene (L) and internal Standard Anisole (A) Were used and needed to find the Wt% of L in a given orange oil sample.
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