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The mass of a beaker is 5.333g. After 5.00 mL of a concentrated hydrochloric acid solution is pipetted into the beaker, the combined mass of the beaker and the hydrochloric acid sample is 11.229 g. From the data, what is the measured density of the hydrochloric solution?
when a 50.0-g nugget of pure gold is heated from 35.0 C to 50.o C, it absorbed 5200.0J of energy. find the specific heat of gold.
A solution containing 3.47mM X (analyte) and 1.72 mM S (standard) gave peak areas of 3473 and 10222, respectively, in a chromatographic analysis. Then 1.00ml of 8.47mM S was added to 5.00ml of unknown X, and the mixture was diluted to 10.0ml. This..
What are the masses in kg of solution A and solution B required, to make 100 kg of a mixture containing 25% ethyl alcohol by mass
According to the Balmer-Rydberg equation, transitions from n= 5 to m= 2 result in a photons of light that give rise to a spectral line with what color
Compute the number of ion pairs that would be formed in the interaction of one 5.0 MeV alpha particle with air. Presume that the formation of one ion pair requires 35 eV. Explain what other assumption did you make in your calculation
suppose a refrigerator is designed based on the joule-thompsoneffect. what characteristics e.g. conduit designtype of
Problem- What is the wavelength of light emitted when the electron in a hydrogen atom undergoes a transition from n=6 to n=5?
Question- Aluminum-27 is the only stable isotope of aluminum. Predict how aluminum-24 and how aluminum-30 will decay.
A sample of a gas occupies a volume of 732 mL at 625 torr. At constant temperature, what will be the new volume when the pressure changes to the following:
the balance N2 is burned with 40 % excess air, (a) how much air is needed per 100 moles of gas, and (b) what will be the analysis of the product gas on a wet basis?
The pH of an acidic solution is 5.71. Calculate the Ka for the monoprotic acid. The initial acid concentration is .010M of
Question- Calculate the mass of protein that must be dissolved in 40 mL of water to obtain a concentration of .00041 M.
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