Discuss what would be the final concentration of hydroxide
Discuss what would be the final concentration of hydroxide ion if the 50.0 ml of 0.15 m Ca (OH)2 solution is mixed with the 25.0 ml of 0.30 m HBr solution?
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Assume also that, after two and a half years, amount of money in account is $1401. Determine interest rate per year. Write the answer as the percentage.
One coin is a fair coin and one coin is biased coin (unfair) with only a 33% chance of getting head. Supposing equally likely probability of picking either coin, determine the probability that the fair coin is the one selected, given that the sele
The solution gives an absorbance of 0.102 at 227 nm using a 1.0 cm cell. A 0.00062 g sample of benzene (C6H6) is dissolved in 200.0 mL of water.
How is the heat of dissolution of the salt NH4Cl(s) related to the hydration energy of NH4+(g) plus X- (g) and the lattice energy of NH4Cl(s)? Illustrate a Born-Haber cycle and then summarize it by writing down what ΔH of dissolution is eq
In one hybridization experiment 8039 offspring peas were obtained, and 24.98% of them had green flowers. The others had white flowers. Suggest a hypothesis test which employs a 0.05 significance level to test the claim that green flowered peas tak
If this sample is titrated with acid, it is found that 20.10 mL of0.5010 M HCl are required to reach the endpoint. A sample of mixed carbonates, SrCO3 (147.63 g/mol) and Li2CO3 (73.89 g/mol), weighed 0.5310 grams.
Assume that for the dose of 10 milligrams, amount A(t) remaining in body t hours later is provided by A(t)=10(0.8)t and that for drug to be effective.
A sample containing potassium chloride and inert material was analyzed by the Mohr method. A portion of the solid weighing 0.2500g was dissolved and titrated with the 0.07575 M AgNO3 solution to a brick-red silver chromate end point.
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