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The instruction booklet for your pressure cooker indicates that its highest setting is 11.1 . You know that standard atmospheric pressure is 14.7 , so the booklet must mean 11.1 above atmospheric pressure. At what temperature in degrees Celsius will your food cook in this pressure cooker set on "high"?
What is the minimum uncertainty in the position of an electron, given that we know nothing about its speed except that it is less than the speed of light?
When aqueous solution of sodium sulfate and lead nitrate are mixed, lead sulfate precipitates. Calculate the mass of lead sulfate produced when 1.25 L
Write electron configurations for the following ions, and determine which have noble-gas configurations. Explain your answer. (a) Cr^3+ (b) N ^3- (c) Sc^3+ (d)Cu^2+ (e)TI^+ (f)Au^+
A 5.325g sample of methyl benzoate, a compound found in perfumes, was found to contain 3.758g of carbon, 0.316g of hydrogen, and 1.1251g of oxygen.
Assume that 1.14 mL of liquid remains in the flask each time it is emptied, and that this volume of rinse water remains in the flask prior to preparation of the KNO3 solution. Although in practice rinse volumes are generally approximate, for purpo..
A solution containing 29.95 mg of an unknown protein per 29.0 ml solution was found to have an osmotic pressure of 3.30 torr at 32 degrees C. What is the molar mass of the protein?
A 2.55 g sample of naphthalene (C10H8) is dissolved in a 30.0 g of benzene (C6H6). Benzene freezes at 5.50 degrees C and the resulting solution freezes at 2.13 degrees C. What is the freezing point depression constant, K sub f, of benzene?
How many mL of 1.183 M H2SO4 must be added to 18.22 mL of 0.531 M NaOH to just completely react all of the NaOH according to the equation
Suppose that 24 g of each of the following substances is initially at 25.0^circ C. What is the final temperature of each substance upon absorbing 2.45 kJ of heat?
How many grams are present in 1 gram of potassium-40. Its natural abundance is 0.0117% and its half life is 1.28X10^9 yrs
synthesis gas can be made by reacting red-hot coal with steam. estimate the temperature at which the equilibrium
The next 6 questions involve the calculation of concentrations of the molecular and ionic species in an aqueous solution that has an analytical composition of 0.060 M KH2PO4 + 0.460 M K2HPO4.
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