Why water sample buffered before it was titrated with edta
Give an explanation for how calmagite works as an indicator for the titration of magnesium ion with EDTA. Explain why the water sample was buffered before it was titrated with EDTA.
Expected delivery within 24 Hours
A sample of air contains 78.08 % nitrogen, 20.94 % oxygen, 0.05% carbon dioxide, and 0.930% argon by volume. How many molecules of each gas are present in 1.00 L of the sample at 39 C and 1.00 atm?
Assuming the solution has a heat capacity of 4.18 J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
35.5 grams of an unknown substance is heated to 103.0 degrees Celsius and then placed into a calorimeter containing 100.0 grams of water at 24.0 degrees Celsius. If the final temperature reached in the calorimeter is 29.5 degrees Celsius, what is
A scuba diver with a lung capacity of 5.1 L inhales a lungful of air at a depth of 44 m and a pressure of 5.4 atm.If the diver were to ascend to the surface (where the pressure is 1.0 rm atm) while holding her breath, to what volume would the air
Assuming H and S do not vary with temperature, at what temperature will the reaction shown above become spontaneous?
After he has evaluated each project against the evaluation criteria, how should he decide the priority of the three projects?
An aqueous CaCl2 solution has a vapor pressure of 82 mm Hg at 50C. The vapor pressure of pure water at this temperature is 92.6 mmHg. What is the concentration of CaCl2 in mass percent?
How many liters of oxygen gas can be produced at STP from the decomposition of 0.125 L of 3.00 M H2O2 in the reaction according to the chemical equation shown below?
1952257
Questions Asked
3,689
Active Tutors
1435763
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Based on the American Osteopathic Associate Code of Ethics evaluate the following case study, as appropriate. Dr. Baird has been seeing his patient
Risk for infection related to inadequate primary defenses (stasis of body fluids, altered per0istalsis, change in pH), multiple organ tissue destruction
Which interpretation would the nurse make of a patient's assessment findings that include a 4-minute loss of consciousness (LOC)
There are many current legal and ethical issues related to assessment. Describe current legal and ethical issues related to assessment
The ICU nurse is aware the ICP can be potential complication, what nursing action would be appropriate of this complications?
The nurse is examining a patient who may have oral cancer. Which sign below makes the nurse believe this patient may have oral cancer?
A nurse is caring for a client who has COPD. Click to highlight the findings below that require immediate follow-up.