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Problem- What is the freezing point in oC of a solution prepared by dissolving 6.60g of MgCl2 in 110 g of water? The value of Kf for water is 1.86 (?C?kg)/mol, and the van't Hoff factor for MgCl2 is i = 2.7.
I am in urgent need of solution of above problem with complete explanation
An unknown monoprotic weak acid, HA, has a molar mass of 55.0. A solution contains 2.50 g of HA dissolved 800. mL of solution. The solution has a pH of 2.000. What is the value of Ka for HA
If the total pressure inside the container is 350 mm Hg , what is the partial pressure of each individual component?
energy level in a hydrogen atom absorbs a photon of light with a frequency of 7.308 x 1014 s-1. Calculate the new energy level the electron will occupy.
The combustion of a 25.0g gaseous mixture of H2 as well as CH4 releases 2354KJ of heat. Compute the amounts of the gases in grams.
How much heat is needed to warm 45.6 grams water from 23.0° C to 40.0 °C?
calculate the energy levels of the pi-network in octatetaene c8h10 using the particle in the box model. to calculate
If 5.00 g Br2 and 3.00 g NH3 react according to the equation below, what is the maximum mass of ammonium bromide produced?
Question- Is a high rate trickling filter (as described below) operating within typical BOD and Hydraulic loading rates if the flow rate of the wastewater after primary treatment is 100,000 GPD and the BOD is 100 mg/L. The trickling filter is comp..
what are the steps to calculate the followingnbspnbsphow many grams of barium sulfate are produced if 25.34 ml of 0.113
To make a phosphate buffer at pH 9.6 starting with 1L of 10 mM phosphoric acid (H3PO4; pKs are of 2.15, 6.82, and 12.38 determine how much KOH ), you could add?
a solution is prepared by dissolving 246 g of sucrose c12h22o11 in 624 g of water. what is the vapor pressure of this
Why is it particularly important to wash the cupric hydroxide intermediate in the synthesis of cupric acetate (verdigris)? Be specific about what is being removed and why it matters.
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