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6.3 mL aliquot of 0.0529 M H2SO4 (aq) is to be titrated with 0.0411 M NaOH (aq). What volume (mL) of NaOH will it take to reach the equivalence point?
How does electron configuration work. If I have [Ar]3d^5 as an example how do know what it actually equals
Draw a Lewis structure for H3C-NO2. Both oxygen atoms are directly attached to the nitrogen atom. If you take formal charge considerations into account, how many -bonds are in the molecule?
an empty flask has a mass of 123.4 grams. when the flask is filled with water, the mass is 211.6 grams. if 10 grams of zinc (density=7.14g/cm3) are added to the flask filled with water, what is the new mass of the flask?
energy level in a hydrogen atom absorbs a photon of light with a frequency of 7.308 x 1014 s-1. Calculate the new energy level the electron will occupy.
2 NaHCO3(s) Na2CO3(s) + CO2(g) + H2O(g) Heating a 1.7184-g sample of impure NaHCO3 gives 0.196 g of CO2. What was the mass percent of NaHCO3 in the original 1.7184-g sample?
Determine the mass of the steel bar If the final temperature of the system reached to 21.0 degree celsius?
Identifying An Unknown Liquid And Precipitate. A high-boiling bp = 202 - 204 degrees C, burns with a yellow, sooty flame. Sodium fusion indicates that halogens, nitrogen and sulfur are not present. It is not soluble in water, dilute sodium bicarbo..
Assuming the density of water is 1.00g/mL at ambient temperature, what is the exact volume (in mL) of the 250-mL Erlenmeyer flask?
Determine the molecular mass and its uncertainty for CH3CH2COOH. Note: Pay attention to significant figures and use the atomic masses given in the table.
Calculate the density of N2 at STP, (a) using the ideal-gas law and (b) using the molar volume and molar mass of N2.
For the reaction, A = B + C, the rate law is k[A]. If it takes 80.0 seconds for 70.0% of a 10.0 gram sample of A to be transformed into products, what is the value of the rate constant.
A hydrogen atom with an electron in its ground state interacts with a photon of light with a wavelength of 1.22 × 10?6m. Could the electron make a transition from the ground state to a higher energy level
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