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If the neutralization of a 0.4321 g sample of KHP required 33.86 mL of sodium hydroxide, what was the molarity of the sodium hydroxide solution?
2 NH3(g) + 3 O2(g) + 2 CH4(g) → 2 HCN(g) + 6 H2O(g) If 5.46x10^3 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield?
What is the wavelength (in meters) of a proton (mass = 1.673*10^-24 g) that has been accelerated to 30% of the speed of light.
Combustion of 3.00 g of this compound produced 7.06 g of CO2 and 1.93 g of H2O. What is the empirical formula of the unknown compound?
It is often possible to change a hydrate into an anhydrous compound by heating it to drive off the water (dehydration). A 46.06 gram sample of a hydrate of MnSO4
If a certian mixture of olive oil and vinegarhas a total mass of 397.8g and a total volume of 4228 cm^3, what is the volume of oil and what is the volume of vinegar in the mixture?
60.0 mL of a 0.450 M HNO_3 solution is titrated with 0.570 M KOH. Calculate the volume of KOH required to reach the equivalence point.
What is the osmotic pressure of a solution made from dissolving 90.0 g of glucose, rm C_6H_{12}O_6, in 650 mL of water at 14.0{^circ}C.
Use the concentrations given below for the concentrated chemcal molarities and write out your calculations to obtain the volume of each stock solution needed to obtain 30.00 L of a 6.00 M
dissolving 3.00g of impure CaCO3 in excess HCl produced .656L of CO2- measured at 20C and 782mmHg. calculate the percent by mass of the CaCO3 in the sample.
Calculate the entropy change for each of the following reactions. Justify why these are physically reasonable answers.
If the final temperature is 23.5 deg C, what was the unknown volume? (no heat was lost to the surroundings, d of water is 1 g/mL)
What is the rate constant when the rate law is written delta[BrO3-]/delta[t]? Or delta[Br-]/delta[t]?
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