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Problem- A drinking water has a calcium concentration of 17 ppm. What is the pH of this lake? It may or may not help to remember that the atomic weight of calcium is 40.1 g/mol.
I am in hurry anyone is there provide me the answer in quick phase
A 3.575g sample of a monoprotic acid was dissolved in water. it took 22.67ml of a .1453 M NaOH solution to neutralize the acid. what is the molar mass of the acid
Consider a distillation column that is fed 1000 kg/hr of an equimolar mixture of benzene and cyclohexane. Theof the benzene distillate stream is to contain 90 % with a benzene mole fraction of 0.95.
Explain what the concentration of a solution of NaOH is if 5.00ml of the solution requires 9.77ml of 0.599 M HCI to reach an endpoint.
Calculate the average molar bond enthalpy of the carbon-chlorine
Assume that the system benzene and chlorobenze at 100 degree celcius obeys Raoult's law. for a binary mixture with an overall mole fraction Z=.30 determine
for a respiration rate of 18 breaths per minute, how many moles of oxygen per minute are absorbed by the body. assume the mole fraction of oxygen in air is 0.21. compare this result with example problem 1.1.
A bicycle tire is filled with air to a pressure of 720 torr at a temperature of 19 degrees Celsius. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58 degrees Celsius.
If the volume of the reaction vessel in part (b) was 1.50 , what amount of (in moles) was formed during the first 15.0 of the reaction
A sample of oxygen gas is collected over water at 23ºC at a barometric pressure of 751 mmHg (the vapor pressure of water at 23C = 21mmHg). What is the partial pressure of oxygen gas in the sample
What is the pH of the solution that results from mixing 50.0 mL of 0.100 M NaOH with 100.0 mL of 0.100 M propanoic acid
Question- Explain why PF3 behaves as both a Lewis acid and a lewis base while NF3 is a very weak lewis base only.
a buffer solution is prepred by adding 15.00g of sodium acetate (NaC2H3O2) and 12.50g of acetic acid to enough water to make 500mL (three significant figures) of solution.
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