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In ice cream making, the ingredients are kept below 0.0 Celsiusin an ice-salt bath.
A) Assuming that NaCl dissolves completely andforms an ideal solution, what mass of it is needed to lower themelting point of 5.5 kg of ice to -5.0 Celsius?
B) Given the same assumptions as in part (A) , what mass of CaCl2 is needed?
a piece of gold jewelry that weighs 9.35 g and has a volume of 0.654 cm3. the density of pure gold is 19.3 gcm3 and the
a 10g sample of acetic acid hc2h3o2. was burned in a bomb calorimeter in an excess of oxygen. the temperature of the
Compound A is C4H9Cl and shows two 13C NMR resonances. Compound B is an isomer of compound A; it shows four 13C NMR resonances, and in the spin-coupled mode the resonance farthest downfield is a doublet. Identify compound A
What is the mass concentration of water vapor in the atmosphere at 25oC when the relative humidity is 60% and the saturation vapor pressure is 2800 Pa
From the following interactions select the lowest and highest energy interactions. A) a +3 and a +1 charge separated by 3 m B) a -1 and a -2 charge separated by 4 m C) a -1 and a +3 charge separated by 2 m
Calculate the energy of an electron in a hydrogen atom when it resides in the n=3 level. State your answer in joules. plz show explanation along with answer
For the following reaction, 5.07 grams of carbon disulfide are mixed with excess chlorine gas. The reaction yields 9.09 grams of carbon tetrachloride.
Write the complete formula equation for the reaction, where ionic species are written as NaCl(aq) rather than Na+(aq) + Cl-(aq), using the smallest integer coefficients, including symbols for states of matter.
As the liquid vaporizes the plunger is pushed out. At equilibrium, the plunger reads 5.46 mL of gas. Atmospheric pressure is 740. mmHg. What is the approximate molar mass of the compound (in g/mol)?
A 44 sample of water absorbs 329 of heat If the water was initially at 21.7, what is its final temperature.
0.0850 M in pyridine, C5H5N, and 0.0560 M in pyridinium chloride, C5H5NHCl The Kb for pyradine is 1.7x10-9
Draw the structure for the molecule that fits the following description and then name it according to IUPAC formalism. a constitutional isomer of decane
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