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What is the molarity of a 10 L solution that contains 3.5 moles of potassium chloride solution?
An acid solution contains 18 kg of water and pure hydrochloric acid (HCl) , Its concentration is 0.60 mol/kg of solvent. Compute for the number of moles of solute contained in the solution.
What is the mole fraction of sodium chloride and water in a solution, prepared by mixing 256 g of sodium chloride and 176 g water? (Na=23g/mol Cl= 35g/mol H=1g/mol o=16g/mol)
Express the concentration of solution in % w/v containing 12 g sodium chloride and 50 ml of water
How many liters of ammonia (NH3) are contained in 800 ml of a solution that is 12% ammonia by volume?
Find the centroid of the triangle whose vertices are (−1,0), (1,0), 𝑎𝑛𝑑 (0,3
Find the moment about the x-axis of a wire of constant density that lies along The curve
𝑦 = √𝑥 from 𝑥 = 0 𝑡𝑜 𝑥 = 2
Find the Center of mass of a thin plate of constant density 𝛿 covering the region bounded by the parabola 𝑦 = 𝑥2 and the line 𝑦 = 4.
A sample of 25 women had a variance in IQ scores of 62. A sample of 18 men had a variance of 72. Do the women have a smaller variance in IQ scores at the 0.01 level of significance? Assume both populations are normally distributed
50 ml of an alkaline water sample requires 3.7 ml of 0.02 N HCL upto phenolphthalein end point and 4.5 ml of complete Neutralization. Find the type and amount of alkalinity in water sample.
#339914 on Dec 2023