8 Answered Questions for the topic Chemistry Moles

Chemistry Moles

09/19/18

in 10.0 mL of methanol, how many moles of methanol are there?

Methanol, CH4O is a liquid at room temperature and its density is 0.792 g/mL
Chemistry Moles Chemistry Moles

05/03/18

What is the volume of 2.3 mol sample of Fluorine at STP?

What is the volume of 2.3 mol sample of Fluorine at STP?
Chemistry Moles

02/14/18

Calculate the smallest whole number ration of moles of water to moles of anhydrous salt.

H2O: 1.53g = 8.5 x 10-2 moles  CuSo4 : 0.87g = 5.5 x 10-3 moles
Chemistry Moles

02/06/18

What volume, in millileters, of a 0.151M HI solution is needed to neutralize 68.2mL of a 0.146M Ba(OH)2 solution?

I am trying to figure out this question by the M1V1=M2V2 equation and I know there are 2 mol of HI to 1 mol of Ba(OH)2.  Any help would be appreciated.  Thank you.

12/03/17

I need to calculate the molar extinction coefficient for phycocyanin.

I have a calibration curve, with the equation of the line, and the concentrations of the plotted points, with absorbency plotted against concentration (mg/ml) How do I solve using the Beer Lambert... more
Chemistry Moles Chemistry Moles Mole Concept

11/28/17

Empirical & Molecular formulas of compounds

Cannizzaro determined that a certain compound of carbon and oxygen had a molecular mass of 44.0 u. This meant that a certain volume of this gaseous compound weighed 44.0 times as much as the same... more
Chemistry Moles Chemistry Molar Mass Moles

11/14/17

determine the mass of the sample

1.48 mol carbon tetrafluoride 
Chemistry Moles Chemistry Conversion Moles

11/12/17

moles chemistry question

How many moles of gold atoms do 4.50x10^24 gold atoms constitute?

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