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Find out the quantity of unknown protein that has an absorbance of 0.203 when a blank has an absorbance of 0.090. The previously find out calibration curve has the form of a straight line with the equation A = 0.0182 × x 0.007 where A is the corrected absorbance as well as x is quantity of protein in units of g.
A mixture of 1.374 g of H2 and 70.31 g of Br2 is heated in a 2.00-L vessel at 700 K. These substances react as follows: H2 (g) + Br2 (g) ⇔ 2HBr (g) Compute the equilibrium concentrations of H2,Br2, and HBr.
Calculate the pH of the solution resulting from the addition of 10.0 mL of 0.10 M NaOH to 50.0 mL of 0.10 M HCN (Ka = 4.9 × 10^-10) solution.
What is the equilibrium constant for the acid-base reaction between ammonia and acetic acid
How much heat is required to convert 25.0g of ethanol at 25 degrees C to the vapor phase at 78 degrees C?
Determine the mass of copper that would release 438 J of heat while cooling from 284 degrees C to 25 degrees C
Practice entering numbers in scientific notation by entering the diameter of a hydrogen atom in its ground state
The neutrons from one treatment source have an average velocity of 3.4 x 10^7 m/s. If the velocities of the individual neutrons are known to within 2% of this value, what is the uncertainty in this position of one of them
Acetylene, C2H2, gas is collected over water at 23°C. The total pressure is 745 torr. What is the pressure of the C2H2 gas. (The vapor pressure of water at 23°C is 21.07 torr.)
n KPH= mass KPH * 1 mol KHP/ MM KHP. for trial 1 my mass of KHP was 2.98 s. How do I calculate this with out knowing what MM KHP stands for
In the balanced molecular equation for the neutralization reaction between phosphoric acid and potassium hydroxide, the products are: a. 3H2O b. K3PO4 + 3H2O c. KPO4 + H3OH d. K+(aq) + PO43-(aq) + 3H+ + 3OH-
acetylene c2h2 will burn in the presence of oxygen.2c2h2g 5o2g yields 4co2g 2h2oghow many grams of water can be
Calculate the expectation values for a particle in the state n = 5 moving in a one-dimensional box of length 2.48×10^(?10)m If someone can just help me out with the set up of the problem thatd be helpful.
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