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How do you make 25ml of a 0.4m sugar solution? How do you convert to calculate grams of sugar needed?
A sample of air contains 78.08 % N2, 20.94% O2, 0.05 %CO2, 0.93% Ar by volume. a) How many molecules of each gas present in 1.00 L sample at 25 C and 1.00 atm. b)What is the partial pressure of each gas?
How did Regan cutting exploration of renewable energies have a long-term impact on our ability to remove our dependence on oil?
If the antacid for analysis is known to be Phillips' Milk of Magnesia, the solution does not need to be heated, but if the sample is Mylanta, the solution must be heated. Explain the difference in experimental procedures
part a you have a stock solution of 14.8 m nh3. how many milliliters of this solution should you dilute to make 1000.0
Sand consist mainly of silicon dioxide. When sand is heated with an excess of coke (carbon), pure silicon and carbon monoxide are produces. Write a balanced equation for the reaction
Steel is an alloy composed of iron as well as carbon that crystallizes BCC, where C atoms are located at interstitial sites obtainable in the center of the faces.
Physical propoerties and intermolecular forces, What type of intermolecular forces accounts for the following differences in each case?
Use values of ksp and kf for copper (II) hydroxide and its complex to predict if a precipitate should form in a 0.1 M Cu2+ solution that is 3M in OH-
Compute the pH after the addition of 0.0mL, 5.00mL, 18.0 mL, 25.0mL, 38.0mL, 50.0mL and 65.0mL of 0.200 M NaOH (aq) to 50.00mL of 0.100 M malic acid, L-hydroxybutanedioic acid. pka1=3.459, pka2=5.097
Calculate the change in enthalpy for the dissolving of sodium carbonate. Assume no heat lost to the surroundings and the solution has a specific heat capacity of 4.18 J/g°C.
What weight of sodium formate must be added to 400mL of 1M formic acid to produce a buffer solution that has a pH of 3.50
What is the relationship between K and Kc?
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