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1.9 mol Se ( 78.96 grams/1mol Se ) = 150.024 grams
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What is the mass of a cubic meter of uranium in grams at 4 deg C?
19 100 kilograms or 19 100 000 grams; the density of uranium is 19,1 g/cm3.
What is the density of volume of 0.8 cm and mass of 15.2 g?
Mass density is the amount of mass (g) per unit of volume (cm3). Divide mass by volume to get density: 15.2 grams / 0.8 cm3 = 19 grams/cm3
Is fluorine lighter than helium?
NO, sure not. Helium (He) mass = 4 g/mol Fluorine gas (F2) mass = 2*19 = 38 g/mol (almost 10 times heavier), although fluorine gas hardly can be held stable: it is so VERY rective, even in air!!
What is the molecular mass of znf2?
Zn= 65.4 F2= 19 x 2= 38 38+ 65.4= 103.4 molar mass of of znf2 is 103.4 grams
How many kilograms are there in 19 000 grams?
There are 1000 grams in one kilogram. Therefore, 19000 grams is equal to 19000/1000 = 19 kilograms.It is equal to 8618.25 kilograms approximately. Kilogram is the metric unit and pound is the imperial unit for mass. 1 Kilogram is 2.204 pounds. So we multiply pound by 0.4535 to get the equivalent kilograms.
If you have 85.5 grams of fluorine which has a molar mass approxidmatley 19 g mol how many moles of fluorine do you have?
4.5
Calculate the number of moles present in each of the following samples.6.684e13 pg of fluorine atoms 2.435e6 mg of magnesium 3.2e-3 kg of lead(II) chloride 6.684e-5 Mg of fluorine 2.31e-9 Gg of carbon disulfide 4.91e9 ng of aluminum sulfate?
umber of Moles= Molar Mass (in g/mol) Mass (in grams) First, you'll need to know the molar mass of the substance in question. Here are the calculations for each sample: 6.684e13 pg of fluorine atoms: Molar mass of fluorine (F) = 19 g/mol Mass in grams = 6.684e13 pg = 6.684e-6 g Number of moles = (6.684e-6 g) / (19 g/mol) ≈ 3.52e-7 moles 2.435e6 mg of magnesium: Molar mass of magnesium (Mg) = 24.305 g/mol Mass in grams = 2.435e6 mg = 2.435 g Number of moles = (2.435 g) / (24.305 g/mol) ≈ 0.1001 moles 3.2e-3 kg of lead(II) chloride: Molar mass of lead(II) chloride (PbCl₂) = 207.2 g/mol Mass in grams = 3.2e-3 kg = 3200 g Number of moles = (3200 g) / (207.2 g/mol) ≈ 15.45 moles 6.684e-5 Mg of fluorine: Molar mass of fluorine (F) = 19 g/mol Mass in grams = 6.684e-5 Mg = 6.684e-5 g Number of moles = (6.684e-5 g) / (19 g/mol) ≈ 3.52e-6 moles 2.31e-9 Gg of carbon disulfide: Molar mass of carbon disulfide (CS₂) = 76.143 g/mol Mass in grams = 2.31e-9 Gg = 2.31e15 g Number of moles = (2.31e15 g) / (76.143 g/mol) ≈ 3.03e12 moles 4.91e9 ng of aluminum sulfate: Molar mass of aluminum sulfate (Al₂(SO₄)₃) = 342.15 g/mol Mass in grams = 4.91e9 ng = 4.91e-6 g Number of moles = (4.91e-6 g) / (342.15 g/mol) ≈ 1.43e-8 moles
What is the molar mass of calcium fluoride?
The formula is CaF2 so, its three atoms, one calcium and two fluorine atoms. add the molar mass of calcium(40 g/mol) and fluorine(19 g/mol X 2 because there are two atoms of fluorine) and you get 40+(19x2)=78 78 grams per mol
What is the mass of Na2SO4 needed to make 2.5 L of 2.0 M solution?
how man molecules are there in 450 grams of Na2SO4. the simple formula to determine of mole is NO OF MOL= GIVEN MASS IN gm/MOL:MASS OF COMP: , AND IMOL = 6.02X1023 . SO, 19. 077X1023 molecules are present in 450 grams of Na2SO4.
How many pounds are in 19 grams of mass?
0.04189 pounds to 19g
What is the mass of a cubic meter of uranium in grams at 4 degrees?
19 100 kilograms or 19 100 000 grams; the density of uranium is 19,1 g/cm3.
What is the mass of a cubic meter of uranium in grams at 4 deg C?
19 100 kilograms or 19 100 000 grams; the density of uranium is 19,1 g/cm3.
How many molecules of carbon tetrachloride are in 6.32 mg of that compound?
1. Convert 6.32 mg to grams.6.32 mg x 1g/1000 mg = 0.00632 g2. Determine the molar mass for CCl4.The molar mass is 153.82g/mol (Wikipedia)3. Convert given mass to moles using the molar mass.0.00632 g CCl4 x 1 mol CCl4/153.82 g CCl4 = 4.11 x 10^-5 mol CCl44. Convert moles to molecules.One mole of molecules is 6.022 x 10^23 molecules.4.11 x 10^-5 mol CCl4 x 6.022 x 10^23 molecules CCl4/mol CCl4 = 2.47 x 10^19 molecules CCl4
What is the in grams of one fluorine atom?
The mass in grams of one fluorine atom is 18.998 grams per mole. Fluorine is a gas that has the atomic number of 9.
What is the density of volume of 0.8 cm and mass of 15.2 g?
Mass density is the amount of mass (g) per unit of volume (cm3). Divide mass by volume to get density: 15.2 grams / 0.8 cm3 = 19 grams/cm3
Calculate the volume of gold in a sample with a mass of 3.0 grams?
Divide the mass by the density, which in this case is about 19. The result will be in cubic centimeters.Divide the mass by the density, which in this case is about 19. The result will be in cubic centimeters.Divide the mass by the density, which in this case is about 19. The result will be in cubic centimeters.Divide the mass by the density, which in this case is about 19. The result will be in cubic centimeters.
What is the mass of 19 atoms of copper in grams?
Not much! 19 atoms Cu (1 mole Cu/6.022 X 1023)(63.55 grams/1 mole Cu) = 2.0 X 10-21 grams of copper ---------------------------------------
