el

This page lists questions and answers that were posted by visitors named el.

Questions

The following questions were asked by visitors named el.

for a given substance what information links mass to moles? number of particles
15 years ago
How many grams of FeCl2 should be dissolved in 1 kg of water to make its boiling point equal to 101.56 degrees centrigrade at atmospheric pressure of 1 atm? (Kb=0.52 degrees Celsius/m; solute is completely dissociated). Thanks!! =)
15 years ago
the enthalpy of fusion of ice is 6.02 kJ/mol. the heat capacity of liquid water is 75.4 J/molC. What is the smallest number of ice cubes at 0 degrees C each containing one mole of water, necessary to cool 500g of liquid water initially at 20.0 degree C to...
14 years ago
The vapor pressure of water at 80 degrees c is 355mmHg. A 100cm3 vessel contained wateraturated oxygen at 80 degrees c., the total gas pressure being 760 mmHg. The contents of the vessel were transferred by pumping to a 50cm3 vessel at the same temperatur...
13 years ago
Calculate the normal freezing point of an aqueous solution containing 30% w/w ethylene glycol. Thanks
13 years ago
upper atmosphere chloromethane can be decomposed by light according to the reaction:CH3Cl -> CH3(g) + Cl(g)The energy required for this reaction is 428 kJ mol–1. If each molecule of chloromethane is decomposed by one photon, what is the maximum wavelength...
13 years ago
where can I use Group I and II anions in the field of medicine especially as a medtech student?
11 years ago
Suppose f varies inversely with g and that f=20 when g=4. What is the value of f when g=10?
10 years ago
A BS Medical Technology student was asked to determine the molecular weight of a diprotic acid using acid-base titration. This student performed four trials. Firstly, the student used potassium hydrogen phthalate (KHP, 204.22 g/mol) as standard to determi...
5 years ago
algebraic expression of 3x+7
3 years ago
The formula f = 9/5 + 32 changes a temperature reading from the Celsius scale C to the Fahrenheit scale. What is the temperature measured in degrees Fahrenheit when the Celsius temperature is 30C
3 years ago

Answers

The following answers were posted by visitors named el.