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The packaging for microwavable meals often carries warnings about possible burns from steam. How much heat can be transferred to the skin when 8.2 grams of steam at the boiling point cools to an average skin temperature of 34C.
how many moles of hcl are required to react with 0.610 g of aloh3 in the above unbalanced reaction? use at least as
How many liters of 0.150 M kI would be required to react completely with 15.00 grams of lead (II) nitrate
If I use a pH calculator to find the ph of .035M of citric acid, I get a pH level of 2.32. However, when I try to find the pH by doing -log10(.035*3), then I get a pH of 0.97. Why is this? If it helps, there are .00105 moles of NaOH and by the stoich..
Explain how many neutrons are emitted when a californium-249 nucleus (Z=98) is bombarded with a carbon-12 nucleus to produce a >257/104 Rf
The pressure of a gas is 817 torr at 55°C. The quantity of the gas is fixed and the volume remains constant as the pressure is adjusted to 102 torr. What is the resulting temperature of the gas?
Fructose contains only C,H, and O. 17.1g of carbon dioxide gas and 7.26 g of water vapor were produced when 12.1 g of solid fructose were combusted with excess of oxygen gas.
Calculate the mass of emitted into the atmosphere upon accelerating the from 0.0 to 67.0 . Assume that the required energy comes from the combustion of octane with efficiency.
Then 1mg of formaldehyde(HCHO, MW=30g/mol) is injected through the septum into the water. Some of the formaldehyde escapes into the gas phase. Consider the situation when a new equilibrium is established. Determine the equilibrium mole fraction of..
How would a calculated specific heat be affected if the metal cools before it is transferred to the water. Would it be higher, lower or unaffected. Explain
The following chemical equilibria are studied in this experiment. To become familiar with their behavior, indicate the direction, left or right, of the equilibrium shift when the accompanying stress is applied to the system
Determine the concentration of calcium and chloride in the solution in both mg/L and mmol/L. You will need to find the molecular weights on a periodic table.
Use the ? - l?+ convention and the crossed arrow to show the direction of the expected polarity of the indicated bonds in the following compounds.
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