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Problem- What mass of salt (NaCl) should you add to 2.00L of water in an ice cream maker to make a solution that freezes at -11.8?C ? Assume complete dissociation of the NaCland density of 1.00 g/mL for water.
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the 500 lbf motor is supported on springs with a total stiffness of 5000 lbfin. the springs have a damping ratio of
calculate the mass of emitted into the atmosphere upon accelerating the from 0.0 to 63.0 . assume that the required
What is the balanced net ionic equation for precipitation of CaCO3 when aqueous solutions of Na2CO3 and CaCl2 are mixed
A sample of 0.0020 mole of HCl is dissolved in water to make a 2000mL solution. Calculate the molarity of the HCl solution, the {H3O}, and the pH.
at equilibrium the flask containing the reacting mixturenis 4 cog --gt nico4gcontains 232 torr co 1240 torr nico4 and
Explain the human eye is a complex detector for visible light. IF the optic nerve needs a minimum of 2.0 x 10-17 J of energy to trigger a series of impulses that eventually reach the brain. Explain how many photons of blue light 475 nm are needed
25.0 ml of 0.212 M NaOH ia neutralized by 13.6 ml of an HCl solution. The molarity of the NAOH solution is?
Draw a line-bond structure for a compound with a molecular formula of C5H14 and one carbon with only one hydrogen attached to it.
Provide the proper IUPAC name for the alkene shown below? choose your answere from the following answers provided. (a) 2-ehtyl-2-methylcyclohexene (b) 3-ethyl-3-methylcyclohexene (c) 6-ehtyl6-methylcycyclohexene
A reverse osmosis unit is used to obtain drinkable water from a source that contains 0.570 g NaCl per liter. What is the minimum pressure (in torr) that must be applied across the semipermeable membrane to obtain water
Calculate the percent yield for the reaction: P4 (s) + 6 Cl2 (g) → 4 PCl3 (l) if 75.0 g of phosphorus reacts with excess chlorine gas to produce 111.0 g of phosphorus trichloride.
The partial molar volumes of water and ethanol in a solution with x(H2O) = 0.40 at 25 degrees C are 16.9 and 57.5 cm^3/mol, respectively.
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