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1. Convert a 0.1 M NaCl to a % (w/v).
2. Convert 5% (w/v) sucrose to a Molarity (M).
3. Which solution was more concentrated, the 0.1 M NaCl or 5% (w/v) sucrose?
4. How could you make a dilute solution (ex. 0.5% (w/v) sucrose) more concentrated (without adding more sucrose)?
what will the concentration of all the reactants and products be when the reaction reaches equilibrium at 527 degrees C?
Why do you think we need to convert the calcium carbonate to calcium chloride befoe we do our EDTA titrations? What specific condition in our titrations require this?
When 10.00 g of vitamin B6 is burned in oxygen, 19.88g of CO2 and 4.79 g of H2O are obtained. Another experiment shows that vitamin B6 is made up of 14.89%N. What is the simplest fourmula for vitamin B6
Calculate the mass percent of a solution that is prepared by adding 35.9 gram of NaOH to 30.2 g of H2O.
a 40.0 ml volume of ethane gas is heated from 25.0 celcius to 50.0 celcius. If the pressure remains constant, what is the final volume?
A gaseous reaction occurs at a constant pressure of 50. atm and releases 74.2kj of heat. Before the reaction, the volume of the system was 8.00L After the reaction, the volume of the system was 2.80L
o this solution was added 1.670 grams of KI and 50.00 mL of a 0.00850 M KIO3 solution. The excess I3- was titrated with 50.00 mL of a 0.02000 M Na2S2O3 solution. What was the mass percent of arsenic trichloride in the original sample
Calculate the specific heat capacity for a 22.7 g sample of lead that absorbs 237J when its temperature increases from 29.8 degree Celsius to 95.6 degree.
the vapor pressure of pure methyl alcohol at 19?c is 90.0 torr and that of pure ethyl alcohol is 40.0 torr. assume a
what is the energy of a photon emitted from an electron in a hydrogen atom when it jumps from the n 7 to the n 3
A health-food store has a large display of bracelets made of copper metal. Some people claim that wearing such a bracelet will protect the wearer.
Analysis of a metal chloride XCl3 shows that it contains 64.3% Cl by mass. Calculate the molar mass of X
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