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Dexter and Mandark team up in order to prevent theasteroids from destroying Earth. They start this planet savingfeat by weighing a gelatin capsule (0.117 g) Next theyadd pieces of aluminum/zinc alloy to the capsule and weigh thecapsule and alloy (0.200 g). They weigh out an empty beaker(112.600 g) and begin the experiement. After the reaction, theydetermine the mass of the beaker (with the displaced water) to be202.437 g. The temperature of the water was 22 Celsius and thebarometric pressure was 735.8 mm Hg.What is the vapor pressure of the water? What is the pressureof dry hydrogen gas?
Suppose you wanted to find out how many milliliters of 1.0 M AgNO3 are needed to provide 169.9 g of pure AgNO3.
A gas mixture composed of helium and argon has a density of 0.727g/L at a 755mmHg and 298K .What is the composition of the mixture by volume?
Estimate the mass of water that must evaporate from the skin to cool the body by 0.50^circ C. Assume a body mass of 85 kg and assume that the specific heat capacity of the body is 4.0 {rm{J}}/{rm{g}}; cdot ;^circ {rm{C}}.
Ozonolysis from unknown compound, A compound, A, c6h8, yields a single organic product, B, upon ozonolysis and absorbs two moles of hydrogen on catalytic hydrogenation to give C.
Why it is important that any aldehyde used in Witting reaction be free of carboxylic acid impurities?
If 0.176 moles of Mg have combined with 0.220 moles of O, what is the empirical formula of the product?
Example of reducing agent mechanism, Using Curved arrows to symbolize the flow of electrons, write the mechanism for the steps involved in the conversion of 9-fluorenone
How much PPP do you need to make 500ml of the solution if you only have 25g and you know that the MW of PPP is 478 g/mole.
What is the molarity of a sodium hydroxide solution if 25.0 mL of this solution reacts exactly with 22.30 mL of 0.253 M sulfuric acid?
The metal used to make the US nickel coin is an alloy of 75% copper and 25% nickel. What maximum mass of alloy could be produced if only 450 kg of nickel and 1180 kg of copper were on hand?
Given the equilibrium pH will you have successfully reduced each metal ion level to below the MLC? give detailed calculations to support your answer.
What is the molarity of benzyl alcohol if the molecular weight is 108.14, the volume is 5 mL
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