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Provide a better description of how math relates to electrons and ion formation.
The heat of vaporization of water at 100°C IS 540 cal/g. (iii) assume that steam (otherwise an ideal gas) has a heat capacity given by
what an alkane with molecular formula C8H18 gives a single product of monohalogenation?
A 1.45 g sample of an iron ore is dissolved in acid and the iron obtained is (aq). To titrate the solution, 21.6 mL of 0.102 M KMnO4(aq) is required. What is the percent of iron in the ore? Hint: calculate moles of iron then mass of iron then % ir..
for a voltaic cell involving pb as the anode and ag as the cathode what would be the initial voltage of the cell if the
If the aluminum block is initially at 25 °C, what is the final temperature of the block after the evaporation of the alcohol? Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and that the alcohol va..
an insulated container is used to hold 45.60g of water at 39.70 degrees celcius. a sample of copper weighing 8.50g is
What molar ratio of acetic acid to sodium acetate is required to create a buffer solution having a pH of 4.84 at 25°C
Assuming that all of the gas in a helium tank containing 500g of He is used to fill balloons with an average volume of 2.5L of Helium, approximately how many balloons could be filled at STP
What is the expression for the energy difference between the lowest energy state and the first excited state of the benzene Pi system. Please leave your answer in terms of variables and constants; do not substitute.
If I add enough water to the above buffer to make the total volume 1.00 L, what's the new pH. How many milliliters of 0.25 M HCl will be needed to change the pH of the dilute buffer by 1 pH unit
a sample of calcium hydroxide is placed into a jar containing water. the mass of the calcium hydroxide same is 1.34g.
0.75 g of hydrogen chloride (HCl) is dissolved in water to make 7.0 L of solution. What is the pH of the resulting hydrochloric acid solution.
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