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Question- What is the pH of an aqueous solution containing 0.250 M ammonia (NH3) (Kb = 1.80 x 10^-5)? 20.00 mL of 0.250 M aqueous ammonia solution was titrated with 0.300 M HCl. After 100.00 mL of HCl is added, what is the pH of the solution?
I am need of complete solution for this problem please help- me out to get right solution
A solution of 120 mL of 0.150 M KOH is mixed with a solution of 260 mL of 0.200 M NiSO4. How many grams of the precipitate can be formed?
Suppose that 0.570 mol of methane is reacted with 0.720 mol of fluorine forming CF4(g) and HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released
what is the most likely reason osha requires employers to protect flooring and handling areas in buildings against
A 0.2527-g sample of a mixture of Mg(OH)2 and Al(OH)3 was treated with 50.00 mL of 0.225 mol L 1 HCl(aq). The resulting solution required 13.73 mL of 0.176 mol L 1 NaOH(aq) to neutralize the excess, unreacted HCl.
It is estimated that the Earth's ruminants (cattle, sheep, etc.) produce 73 million metric tons of CH4 each year. In this amount of CH4 there would be................ million metric tons of carbon
ideal gas in 2.0 L what will be the volume of the gas if the pressure on the container is doubled while the temperature is reduced from 400 K to 200 K.
A typical adult bdy contais 6 liters of blood. The hemoglobin content of blood is about 15.5G /100mL. The approximately molecular weight of hemoglobin is 64500 g/mol. How many moles of hemoglobin are present in a typical adult
Which of the following is true about any R enantiomer. A. it has a + rotation b. it has a - rotation c. it is a mirror image of the S enantiomer is it A only B only A and C or B and C
What observations might enable us to deduce that a chemical change has occured when dilute aqueous
The CO2 output of an astronaut is about 1.2 kg/day. What is the minimum mass of LiOH required for a six-day space shuttle flight involving five astronauts
Problem- How much heat (in J) is evolved or absorbed when a 35.4 g sample of aluminum (specific heat = 0.900 J/(g K)) cools from 88.4oC to 71.9oC
A 0.484g sample of impure NH4Br is treated with 25.00 mL of 0.2050 M NaOH and heated to drive off NH3. The unreached NaOH in the reaction mixture after heating required 9.95 mL of 0.0525 M H2C2O4 to neutralize.
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