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Question- How many grams of CaCl2 are needed to make 711.2 g of a solution that is 29.5% (m/m) calcium chloride in water? (Note that m/m has the same meaning as w/w.)
How many grams of water are needed to make this solution?
A solution is made by dissolving 0.615 mol of nonelectrolyte solute in 857 g of benzene. Calculate the freezing point and boiling point of the solution. Constants may be found here.
Give reasons or calculations to sustain your answer.
question calculate the volume of dry co2 produced at body temperature 37 degree celsius and 0.950 atm when 25.0 g of
A corrosionist pipetted a 50.00 ml sample of an unknown brine and titrated it with 37.64 ml of 0.1024 M silver nitrate solution. Calculate the ppm of salt (NaCl)in the sample.
What is the silver ion concentration in a solution prepared by mixing 339 mL of 0.398 M silver nitrate with 405 mL of 0.591 M sodium chromate? The Ksp of silver chromate is 1.2 × 10-12
Naturally occuring sulfur consists of four isotopes: 95.0% 32s (31.97207amu); 33s (32.97146amu, 0.76%);
if 2.0 g of lithium metal reacts with 3.0 l of chlorine gas at stp what mass of lithium chloride is
Enough of a monoprotic acid is dissolved in water to produce a 0.0193 M solution. The pH of the resulting solution is 2.42. Calculate the Ka for
Give a step by step mechanism for the reaction of the following: a. salicylic acid with acetic anhydride/ phosphoric acid b. salicylic acid with methanol/hydrochloric acid
Question- If a piece of silver is placed in a solution in which [Ag^+] = [Fe^2+] = 1.00 M at STP, what is Ecell for the following reaction
calculate the form of the zeeman effect which occurs when a homogeneous magnetic field of4.0 t 40 kg is applied to a
The reaction, M2O3(s) + C(s) ? M(s) + CO2(g), is spontaneous at low temperatures but non-spontaneous at high temperatures. If we assume that, since the physical states do not change
we will measure the rate of the following redox reaction: 6I + BrO3 +6H -> 3I2 +Br + 3H2O rate = 1/3 delta[I2]/delta t after 219 seconds When the reactants are mixed it is found that the molarity of the I2 has increased from 0M to 1.0 x 10-4M . a)..
a standard solution of sodium hydroxide has a molar concentration of 0.128m. you use 25.00ml of a solution of
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