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Choose the best definition of temperature
if a 189-mg piece of gold density 19.32 gcm3 is hammered into a sheet measuring 2.4 ft 1.0 ft what is the average
Calculate the theoretical amount of CaCl2 that would be required to change the temperature of 50.0 mL of water from 20C to 45C. The heat capacity of water is given as 4.184 J/degree, and the density of water is given as 1 g/ml
Problem- What mass in grams of copper will be deposited from a solution of Cu 2+ by a current of 2.50 A in 2 hours
Electromagnetic radiation with a wavelength of 665 nm appears as orange light to the human eye. The energy of one photon of this light
1.the aquous solution of sodium bromide has the molality of 2.50m and the molar mass was found 102.9 gmol then compute
Question- Tyrosine hydroxylase (TH) is an enzyme found in the nervous system. It hydroxylates tyrosine and initiates the synthesis of dopamine. It has been determined the Km of TH is smaller than the concentration of tyrosine in the CNS. This impl..
A sample of air at STP is determined to contain 77% nitrogen, 21% oxygen, 0.5% water vapor, 0.5% carbon dioxide, and 1% of inert gases etc. Explain what is the partial pressure of water vapor in this sample
Data: C(graphite) + O2(g) => CO2(g) ?H = -393.5 kJ H2(g) + 1/2O2(g) => H2O(l) ?H = -285.8 kJ CH3OH(l) + 3/2O2(g) ? CO2(g) + 2H2O(l) ?H?? = -726.4 kJ Using the data above, calculate the enthalpy change for the reaction below. Reaction: C(graphite) ..
With complete QPSI, pertinent EQ and material and charge balance analysis, calculate CaCO3 solubility and pH for the system produced by treating excess CaCO3 with 1 L of 1 M (H4N)2SO4
Naturally occurring chlorine is composed of two isotopes: 75.76% Cl-35 (mass 34.9688 amu) and 24.24% Cl-37 (mass 36.9659 amu). Naturally occurring oxygen is composed of three isotopes: 99.757% O-16
NaCl(aq) + H2O(l) → NaOH(aq) + Cl2(g) + H2(g). If the brine contains 389 g of NaCl, how much Cl2 can be produced.
If the radius of a benzene ring is 120 pm, what is the energy of the lowest energy transition (in units of nm) for benzene
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