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Explain an unknown solution containing only group 1 cations forms a white precipitate, P1, upon addition of hydrochloric acid. Addition of hot water produces a clear solution, S1. Which cation(s) is (are) definitely present, which is (are) definitely absent, and which is (are) uncertain in P1 and S1 based on the evidence given? State balanced net ionic equations to demonstrate your reasoning.
Calculate the pH at the equivalence point for the titration of 0.120 M methylamine (CH3NH2) with 0.120 M HCl
36.45mL of 0.11 M hydrochloric acid were added to 36.45mL of 0.098 M aqueous barium hydroxide. Compute the theoretical yield of the salt produced.
Consider a cylindrical container partially filled with ethanol (C2H6O). Using the model in which ethanol vapor pressure is a result of equilibrium between the rate of ethanol evaporation and condensation.
Given 100 g of hot tea at 90 C what mass of ice at -10 C must be added in order to obtain a final temperture of 10 C
compare in your mind 3 different liquids pure ethanol a 50 ethanolwater mixture and a 50 ethanolmethanol mixture. rank
What is the molecular formula for the alkane with 39 carbon atoms? What is the molecular formula for the cycloalkane with 38 carbon atoms?
Sodium hydroxide is known to be hygroscopic and deliquescent: what do these terms mean? How does this property contribute to the hazards associated with handling this substance
[NO2] = 0.65 M, [NO] = 7.2 × 10-8 M, and [N2O] = 0.048 M. What is the value of Kp for this reaction? Enter your answer in scientific notation.
A sample of helium gas occupies 1045 mL at 621 mmHg. For a gas sample at a constant temperature, determine the volume of helium at 745 mmHg.
Account for the fact that H3C-Cl (dipole moment 1.94D) and H3C-F (dipole moment 1.82D) have almost identical dipole moments, even though fluorine is considerably more electronegative than chlorine.
a what safety precaution should you follow when working with thegas chromatogram injection port?b what will raising the
Eventually, the water becomes saturated with respect to NaCl. Write a balanced chemical reaction illustrating the precipitation of NaCl and explain saturation
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