What is the molarity of ammonia in the solution
An aqueous solution contains 4.90% NH3 (ammonia) by mass. The density of the aqueous ammonia is 0.979 g/mL. What is the molarity of NH3 in the solution?
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Consider the following reaction: K2S(aq)+ Co(NO3)2(aq) - 2 KNO3(aq) + CoS(aq) What volume of 0.225 M K2S solution is required to completely react with 175 mL of 0.115 M Co(NO3)2?
A rifle is aimed horizontally at a target 51.0m away. The bullet hits the target 2.50cm below the aim point. a) What was the bullets flight time? b) What was the bullets speed as it left the barrel?
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A 0.264-gram sample of an amino acid was dissolved in 95.0mL of water and titrated with 0.105M NaOH. The first equivalence point was found at V(OH)=16.3mL. What is the molar mass of the amino acid titrated?
Which of the following statements most accurately characterizes the American political system before the 1820s? It was democratic.Local notables dominated it by managing local elections through devices such as loaning money and treating workers or
Rubidium-87 decays by beta decay with a half-life of 4.9 x 10^10 yr. How many 87Rb atoms are in a moon rock sample that has a rubidium decay rate of 3500 disintegrations per hour.
A 0.041 M solution of a monoprotic acid is 12 percent ionized. Calculate the ionization constant of the acid.
There is a region of magnetic field. from a centre point from it there are 2 semi infinite wire making some angle the region is having rdius r. what will be the magnetic field intensity at that centre point?
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