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Concentrated stock HCl has a molecular weight of 36.46 and contains 32g of salt for every 100g of acid (termed as 32% w/w). To prepare molar solutions %w/w must be converted into %w/v by considering the density of stock HCl which is 1.16.
How many grams of HCL are contained in 100ml?
For a solution of hexane (C6H14) and chloroform (CHCI3), would you expect it with respect to Raoult's law to be relatively ideal, to show a positive deviation, or to show a negative deviation
How many Valence electrons, bonding electrons, and lone pair electrons are present
an unavoidable side reaction of alkyl halides with active metals which lowers the yield of grignard reagents is called
how many liters of CO2 gas can form at STP when 15.5 mL of a 3.00 M HCl solution reacts with excess CaCO3? c)what is the molarity of a HCl solution if the reaction of 200 mL of the HCl solution with excess CaCO3 produces 12.0 L of CO2 gas at 725 m..
A 1.00L Solution contains 3.50x10^-4 M Cu(NO3)2 and 2.20x10^-3M ethylenediamine(en). The kf for Cu(en)2^2+ is 1x10^20. What is the concentration of Cu2+(aq) in the solution
If 15 g of sugar are dissolved in 200 g of water, which of the following terms describes the sugar? A. solvent B. solute C. suspension D. colloid
If you remove a piece of paper with a secret message written with lemon juice from a tincture iodine bath and let it dry, what will happen over a long period of time? Explain why?
A 0.2527-g sample of a mixture of Mg(OH)2 and Al(OH)3 was treated with 50.00 mL of 0.225 mol L^-1 HCl(aq). The resulting solution required 13.73 mL of 0.176 mol L^-1 NaOH(aq) to neutralize the excess, unreacted HCl. What was the percentage by mass..
Which of the following combinations would be the best to buffer an aqueous solution at a pH of 5.0? H3PO4 and H2PO4- (Ka=7.5e-3) HNO2 and NO2 (Ka=(4.5e-4) CH3CO2H and CH3COO (Ka= 1.8e-5) H2PO4 and HPO4 (Ka=6.2e-8)
Calculate (a) the work done when the gas expands isothermally against a constant external pressure of 200 Torr until its volume has increased by 3.6 dm3, and (b) the work that would be done if the same expansion had occurred reversibly.
Density is an example of intensive physical propery of matter. What does this statement mean?
How many liters of CO2 at 0 °C and 380 torr are obtained in the reaction of 3 g of ethane with excess O2
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