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What is the mole fraction of water in a water ethanol solution that is 57 percent water by mass?
To calculate the mole fraction of water in the solution, we first need to determine the moles of water and ethanol present. Given that the solution is 57% water by mass, we can assume the remaining 43% is ethanol. From there, we can convert the mass percentages to moles using the molar masses of water and ethanol, and finally, calculate the mole fraction of water by dividing the moles of water by the total moles of the solution.
How many moles are in 57 grams of Xenon?
To find the number of moles in 57 grams of Xenon, divide the given mass (in grams) by the molar mass of Xenon. The molar mass of Xenon is 131.3 grams/mol. Therefore, 57 grams of Xenon is equal to 0.434 moles (57/131.3).
Where are the lanthanides places on the periodic table?
between Barium and Hafnium
What is the difference between partial and complete hydatidiform mole?
complete mole does not show immunohisto chemical positivity for p 57 as this mole is completely androgenic.whereas partial mole has a haploid set of maternal chromosomes which is positve for p 57.p 57 is a paternally imprinted but maternally transcribed gene........
How many multiplication problems are in the number 57?
Infinitely many: 57*1 57*2 57*2.1 57*2.2 and so on, and on, and on.
Where does hafnium fit in the periodic chart?
The element hafnium fits in the 6th Period of Group 4 of the modern periodic table. It is immediately next to Lanthanum, which extends as another separate block called the f-block. Thus it is immediately next to Lanthanum (atomic number Z=57) though it has Z=72. It is below zirconium, which is, in turn, below titanium in Group 6.
How many mils is 57 grams?
57 grams of water is 57 ml.
How many 3s are in 57?
To find how many times 3 fits into 57, you can divide 57 by 3. Doing the calculation, 57 ÷ 3 equals 19. Therefore, there are 19 threes in 57.
How many 6 are in 57?
57/6 = 9.5 57/6 = 9.5 57/6 = 9.5 57/6 = 9.5
How many molecules are there in 3.46 kg hydrochloric acid?
Mass of HCL given=3.46kgs = 3460 grams of HCL No. of moles of HCL=Mass of HCL provided/Atomic mass of HCL=3460/36.5=94.8 moles no. of molecules=no. of moles x Avogadro number=94.8 x 6.022 x 1023 =57 x 1024 molecules.
How many hundredths in 57 hundredths?
Just 57
Out of the 102 pilgrims how many died after the first winter?
57 died
