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1 mole of helium weighs 4.0026 g
So. 18.8 of helium will weigh 75.25 g
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What is percent of 17g sucrose in 188g of water?
The percent, by weight of 17g of sucrose in 188g of water is calculated as follows Mass of Sucrose / Total Mass of Solution *100% = 17 / (188 + 17) * 100 = 8.29%
How many moles of H2SO4react with NA2CO3?
Sodium Carbonate + Sulfuric acid ------> Sodium Sulfate + Water + Carbon Dioxide Na2CO3 + H2SO4 ------> Na2SO4 + H2O + CO2 1 : 1 : 1 : 1 : 1 1 mole of na2co3 will react with h2so4
How many nutrons does gold have?
188
What element has 188 neutrons?
Radon Remmember to find neutrons you subtract mass number from atomic number. Mass is 222 Atomic Number is 86 222-86= 136....136 neutrons Radon Remmember to find neutrons you subtract mass number from atomic number. Mass is 222 Atomic Number is 86 222-86= 136....136 neutrons
What is 188 mm in inches?
7.4016 in Algebraic Steps / Dimensional Analysis Formula 188 mm*1 cm 10 mm*1 in 2.54 cm=7.401574803 in Direct Conversion Formula 188 mm*1 in 25.4 mm=7.401574803 in
What is the number of atoms in 1.88 moles of Zn?
1.88 mol Zn ( 6.022 X10^23/1mol Zn ) = 1.13 X10^24 atoms.
What is the mass of silver bromide precipitated from 2.96 g of iron bromide?
This is an incomplete question for several reasons. Iron bromide can be FeBr2 or FeBr3 and this will influence the answer. Also, in order to precipitate silver bromide, one would add silver nitrate, but it isn't stated how much silver nitrate is used. Assuming FeBr2 is used, and there is excess AgNO3, then .... 2AgNO3 + FeBr2 ----> 2AgBr(s) + Fe(NO3) moles FeBr2 = 2.96 g x 1 mol/216 g = 0.0137 moles moles AgBr produced = 2 x 0.0137 = 0.0274 moles mass AgBr produced = 0.0274 moles x 188 g/mole = 5.15 grams <---answer
How many neutrons are in an Osmium atom of mass number 188?
112 neutrons
How many MG is 118 ML?
188 milliliters (ml) is equal to 188 milligrams (mg). They have the same numerical value because both milliliters and milligrams are metric units of measurement, but they measure different properties. Milliliters measure volume, while milligrams measure mass. So, in this case, 188 ml is equivalent to 188 mg.
What is 188 add 188?
376
What is 60 percent of 188?
60% of 188= 60% * 188= 0.6 * 188= 112.8
What is 376-188?
564
What is 20 percent off 188 dollars?
20% of $188 = (188/100)*20 = $37.620% off $188 = (188-37.6) = $150.4
What is 188 percent as a fraction?
188% = 188/100 = 47/25
What is the percentage of 240-188?
188 of 240 is 78% n 240 of 188 is 127%
What is 188 percent written as a fraction and a decimal?
188% = = 188/100 and 47/25. It reduces to 122/25As a decimal, 188% = 1.88
What is 752 divide by 4?
188
