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A 15.00 mL solution of potassium nitrate (KNO^3) was dilutied to 125.0 mL, and 25.00 mL of this solution were then diluted to 1.000*10^3 mL. the concentration of the final solution is 0.00383 M. Calculate the concentration of the origanal solution Is it .00798M? When dealing with sig figs, is M counted as an exact number?
The value that should be reported for the number of moles of gas calculated from the ideal gas equation given the following data (R=0.08206L*atm/mol*K, P=76.00cmHg, V=1.000L and t=1degC)is.
suppose the pressure inside a pressure cooker reaches 1.3 atm. By using the vapor-pressure table, estimate the temperature at which water will boil in this cooker
Write a balanced chemical reaction for photosynthesis (accounting for both the light and dark reactions). Compare the pathways of photosynthesis and oxidative phosphorylation.
What mass of precipitate will form if 1.50 L of concentrated Pb(ClO3)2 is mixed with 0.700 L of 0.180 M NaI. Assume the reaction goes to completion.
Enter the symbol for the orbitals that overlap (example for H2 enter 1s) as well as the chemical symbol of the noble gas separated by a comma.
Consider the hydrazinenitrogen tetroxide rocket fuel reaction: 2N2H4 + N2O4 3N2 + 4H2O How many grams of N2H4 will be consumed by 46 g of N2O4?
Assuming that teh F-18 can be transported at 58.0 miles/hour, how close must the hospital be to the cyclotron if 63% of the F-18 produced is to make it to the hospital
Photometric measurement for the phosphate in a 25mL aliquot showed an absorbance of 0.428. Addition of 1mL of a solution containing 0.500mg phosphate to a second 25 mL aliquot yielded an absorbance of 0.517. Calculate the mg of phosphate in each m..
What new compound will be formed when gaseous HCL is added to a solution of benzaldehyde in methanol
question an 11.2 liter flask at 0 degrees c contains one mole of oxygen two moles of nitrogen and three moles of
Concentrated aqueous HClO4 has a concentration of 14.8 M. Calculate the concentrations of all ions present in a solution prepared by pipetting 3.12 mL of concentrated HClO4 into a 1000. mL volumetric flask and filling to the mark.
What is the maximum mass of aspirin (the theoretical yield) that could be produced in this reaction?
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