What was the concentration in original undiluted solution
A 10 mL sample of a solution of Pb(ClO3)2 was diluted with water to 170 mL. A 100 mL sample of the dilute solution was found to contain 0.021 moles of Pb2+. What was the concentration of Pb(ClO3)2 in the original undiluted solution?
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Suppose that the microwave radiation has a wavelength of 12 . How many photons are required to heat 275 of coffee from 25.0 to 62.0 ?
Drivers are concerned with the mileage obtained by their cars. One driver has kept track of several tankful of gasoline by recording miles driven and gallons used for each tankful. Develop a c++ program that uses a while statement to input the
A balloon is filled to a volume of 7.0 102 mL at a temperature of 39.0°C. The balloon is then cooled at constant pressure to a temperature of 1.00 102 K. What is the final volume of the balloon?
The plates of a parallel plates capacitor are 5mm apart and2m2 in area,the plates are in a vacum.a potential difference of 10000 volts is applied across the capacitor.calculate.(1)the capacitance,(2)the charge on each plates,(3)the electric
A 100 mL sample of the dilute solution was found to contain 0.021 moles of Pb2+. What was the concentration of Pb(ClO3)2 in the original undiluted solution?
The hydrogen spectrum has a red line at 656 nm and a blue line at 434 nm. What is the first order angular separations between these two spectral lines obtained with a diffraction grating that has 4500 lines per centimeter?
The rate constant k for a first order reaction is 1.36 * 10 -3 s -1 at 90 degrees Celcius and the activation energy is 78.4 kJ/mol. What is the rate constant for this reaction at 50 degrees Celcius?
Ultisols are an important soil order in this group of soils. Describe the typical profile of this soil order paying particular attention to features that directly influence soil and water management . Indicate how these features may influenceland
A sample of magnesium metal will combust completely in air according the following reaction:
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Identify one key relationship you have currently in your life (My mom, and we have a great relationships). What is that person and how would you describe that
According to Freud's Psychosexual Development, which stage are Jeffrey's symptoms consistent with?
Question: George's behavior may be less about the specific substance and more about replacing a deeply ingrained ritual.
1. Explain the controversy that surrounds personality and paraphilic disorder. 2. Explain your professional beliefs about this disorder, supporting
Take on the perspective of someone engaged in recruitment for human trafficking (such as a trafficker, pimp, or recruiter).
Some factors that contribute to a child being accepted or rejected by their peers can be their communication skills such as how the listen and respond to peers.
Question: You may not have alignment between your personal purpose and the corporate purpose in every job.