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The difference between the squares of two numbers is 3. Four times the square of the first number increased by the square of the second number is 17. Find the numbers.
What amount of chlorine gas is obtained by treating 80 g of magnesium dioxide in excess of HCl the following reaction. MnO2 + 4 HCl => MnCl2 + 2H2O + Cl
The normal melting and boiling points of O2 are -218C and -183C respectively. Its triple point is at -219C and 1.14 torr, and its critical point is at -119C and 49.8 atm.
The equilibrium constant for a certain reaction decreases from 8.51 to 3.3e-2 when the temperature increases from 24°C to 73°C. Estimate the temperature where K = 1.00 for this reaction. T in Kelvin.
predict the outcome of the synthesis of an azo dye using 4-nitroaniline as the diazonium precursor and benzaldhyde as the coupling agent
Write balanced, net ionic equations for the reactions expected when the following solutions are made moderately basic with the addition of NH3(aq) followed by addition of H2S(aq).
Mixing 20.0mL of a 3.00 M sugar solution with 30.0mL of a 5.00 M sugar solution results in a solution with what molar concentration?
For the chemical reactions shown below, calculate the number of electrons transferred in the redox process. 2Cr2(O7)2- (aq) + 16H+ (aq) --> 4Cr3+ (aq) +3O2 (g) + 8H2O (l)
On the obtained mass-spectra you got in the expected parent-ion mass region two adjacent lines with almost the same abundance
How long does it take to deposit a coating of gold 1.00um thick on a disk-shaped medallion 4.00 cm in diameter and 2.00 mm thick at constant current of 89 A?
A solution of 0.01M acetic acid is found to have a PH of 3.63 . Calculate the Ka for the acid
Problem- Consider the titration of a 25.0 mL sample of 0.110M HC2H3O2 with 0.120 M NaOH. Determine each of the following. the pH after adding 6.00mL of base beyond the equivalence point
At 25°C the heat of fusion of aluminum is 10.6 kJ/mol and the heat of sublimation is 326.4 kJ/mol. What is the heat of vaporization of aluminum at 25°C?
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