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0431 moles of sucrose (a sugar with a MW of 342 g/mol) are dissolved in 400.0 g of water. The solution density is 1.013 g/mL and you can assume that the density of pure water is 1.00 g/mL. What is the molality of this solution?
what is the concentration of hydroxide ion in a 0.060 M aqueous solution of methylamine. CH3NH2? what is the pH?
The combustion of magnesium metal is described by the following equation. What mass of magnesium must be burned to produce 1.00 kJ of heat
the density of aluminum is 2.70 g/cm3 and the density of chronium is 7.19 g/cm3. if equal masses of aluminum and chronium are trasnferred in equal volumes of water in separate graduate cylinders, which graduated cylinder would have the greatest vo..
One method of estimating the temperature of the center of the sun is based on the assumption that the center consists of gases that have an average molar mass of 2.00 g/mol.
2500 kg/hr of a mixture containing equal parts by mass of benzene and toluene are distilled. The flow rate of the overhead product stream is 988 kg/hr , and the bottom stream contains 17.03 wt% benzene.
What is the molarity of a solution that is 7.00% by mass magnesium sulfate and has a density of 1.071.
alcohol is often used to sterilize medical instruments or patch of skin
A 5.0 mL sample of vinegar was titrated with 7.2 mL of 0.55 M NaOH(aq). If the density of the vinegar solution is 1.00 g/mL, what is the mass percent of acetic acid present?
A 1.95 gram sample of sodium sulfate hydrate lost 0.756 gram of water when heated to constant mass. What is the formula of the hydrate?
what is the mass of one mole of copper atoms? How many moles of copper atoms have a mass equal to the mass of a penny?
What molecule does most probable speed of 393m/s at 25*C? Also calculate the mean speed
The reaction between ethyl iodide and hydroxide ion in ethanol (c2H5OH) solution, C2H5I(alc) + OH -(alc) C2H5OH(l) + I -(alc) has an activation energy of 86.8 kj/mol and a frequency factor of 2.1*10^11 A solution of KOH in ethanol is made up by di..
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