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A 2.0L kettle contains 116g of boiler scale (CaCO3). how many times would the kettle have to be compleletly filled with distilled water to remove all of the deposit at 25degC?
What is the total pressure (Ptot) in the container in torr? What is the partial pressure of argon (Par) in the container in torr?
Hexane has a density of 0.659 g/mL. How many milliliters would a student need to pour in order to get 49.5 g of hexane?
Calculate the van't Hoff factor (i) for this solution. 2. Calculate the vapor pressure at 25 ?C of an aqueous solution that is 5.80% NaCl by mass.
If 450 g SO2 escaped into the atmosphere and all the escaped SO2 were converted to H2SO4. How many grams of H2SO4 would be produced in the atmosphere?
If 18.4 mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentration of the ammonia?
a calculator to calculate the average and standard deviation for x1 through x12. i know how to find the average but i dont understand how to findthe standard deviation.
An external direct-current power supply is connected to two platinum electrodes immersed in a beaker containing 1.0 M CuSO4(aq) at 25°C, as shown in the diagram above
calculate the number of NaCl formula units formed when 190 Na atoms and 98 Cl2 molecules react? 2Na + Cl2 → 2NaCl
increased the space between the energy levels keeping the temperature fixed or (ii) increased the temperature and keeping the energy levels fixed.
we can see that the amount of heat released is 1679.5 \rm kJ per mole of methane, or 1679.5 \rm kJ per four moles of fluorine. How much heat is released per mole of fluorine
Determine What would be the total volume in the graduated cylinder if density of Ag= 10.5 g/mL.?
NaOH solution is used to determine the amount of Mg(OH)2 in a sample of milk of magnesia, (molairty of NaOH is 1.172M). A 10.0 gram sample of milk of magnesia is required with 8.00 mL of 6.00 M HCl.
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