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H2SO4(aq) +mNaOH(aq)---H2O(l) + Na2SO4(aq)
If 37.89ml of 2.0M sodium hydroxide are used to titrate a 45.00ml sample of sulfuric acid what is the molarity of the acid? Round the number to the nearest correct sig fig.
what is the energy of a single UV photon and a mole of UV photons having a wavelength of 25 nm?
Design a small-signal voltage amplifier using BJT's that meets the following specifications: 1) Voltage gain of 50 or more 2) Minimum input resistance of 15 k? 3) Output resistance less than 100 ? 4) Maximum unclipped output of 2V peak-to-peak 5) ..
The convention of arbitrarily assigning a zero enthalpy value to all the most stable elements in the standards state and (usually) 298 K is a convenient way of dealing with the enthalpy changes of chemical processes.
Electromagnetic radiation with a wavelength of 425 nm appears as violet light to the human eye. The energy of one photon of this light is 4.68 × 10-19 J. Thus, a laser that emits 1.3 × 10-3 J of energy in a pulse of light at this wavelength produc..
The combined gas law requires that only the amount of gas be held constant. if P2 is unknown and needs to be computed, then the expression to be use is a) P2=P1V1T1/V2T2 b) P2=P1V2T2/V1T1
How do you know if there should be a precipitate or not. What is the chemical formula for the possible precipitate. Look in your textbook for any necessary equilibrium constants.
a zero-order reaction has a constant rate of 3.50times10-4 . if after 40.0 seconds the concentration has dropped to
The compound butane consists of only C and H. If 0.446g of butane is burned in oxygen and produces 1.40g CO2 and 0.537g H2O, what is the empirical formula of butane
Problem- Develop a synthesis for converting 2-methylcyclohexanone into 2-[(dimethylamino)methyl]-6-methylcyclohexanone (outline a complete reaction mechanism(s) for this synthesis, and describe an appropriate cleanup process to extract the product..
Determine the exact molarity of NaOH (aq), when a sample of KHC8H404 dissolves in water and is titrated with 24.03 mL of NaOH(aq).
A radioactive sample was analyzed seven times for the isotope ratio with a mean of 1.52793 and a standard deviation of 0.00007. find the 99% confidence interval for the sample
Draw the major E2 reaction product formed when (1R,2S,4S)-2-chloro-4-methyl-1- (propan-2-yl)cyclohexane (shown below) reacts with hydroxide ion in DMSO.
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