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If 60 of heat is added to an aluminum can with a mass of 17.7 , what is its temperature change? Specific heat capacity of aluminum is 0.903 .
Express your answer using two significant figures.
What molecule does a most probable speed of 393 m/s at 25*C? Also calculate the mean speead and root mean square speed.
A hypothetical element consists of two isotopes of masses 86.95 amu and 88.95 amu with abundances of 35.5% and 64.5%, respectively. What is the average atomic mass of this element?
if the initial concentration of is 0.260 and the reaction mixture initially contains no products what are the
Determine the molecular formula of the oxide of phosphorous when it is in its gaseous state.
An analyst is to determine the molarity of a NaOH solution. Three aliquots of standard KHP are weighed out 0.3078g, 0.4967g, and 0.3821g
A buffer solution contains 0.5 M HA pka=8 and 0.25M NaA. What is the pH after 0.1 mol of HCL is added to this solution, giving a total final volume of 2L
Explain why is that based on your understanding of the forces that maintain the native conformation of proteins.
a) Calculate the potential of the two cells. b) Write the overall balanced redox equations for the reactions above. c) Calculate ?G for the conditions given for reactions above.
A fifty litres container of stainless steel was charged with 5.00 atm of H2(hydrogen gas) and 6.00 atm of O2(oxygen gas). A spark ignited this mixture (hydrogen gas & oxygen gas)
Determine q for the acid-base reaction, assuming that the liquids have densities of 1.00 g/mL and the same heat capacities as pure water.
The following reaction is example of elimination and substitution reaction. Categorized this reaction as an E1, E2, or SN1, SN2 CH3CH2O¯ + CH3CH2Br ? CH3CH2OCH2CH3 + Br¯ Please, explain.
What did you observe in the reactions of zinc with 4 different acids: HCL, H2SO4, H3PO4, and CH3COOH
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