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What is the molecular formula of the compound CH2 with molar mass 168 gmol?
c12h24
What is equal to carbons atomic mass and has the unit gmol?
Molar Mass
What is the mass of 35 moles of carbon monoxide?
The mass of 35 gmoles of carbon monoxide ( CO ) is given by : m = ( n ) ( M ) m = ( 35 gmol ) ( 28.00 g / gmol ) = 980 g <----------------
What is the percent by mass of h in c7 h8 the molecular weight of carbon is 12.0107 gmol and of hydrogen 1.00794 gmol answer in units of your answer must be within 1?
mass of h = 8 atoms of h/molecule * 1.00794 g/mol = 8.06352g/mol of h in c7h8 mass of c7h8 = 8 atoms of H/molecule * 1.00794 g/mol + 7 atoms/molecule of C * 12.0107 g/mol = 92.13842 g/mol h / c7h8 = 8.06352 / 92.13842 = 0.08752 0.08752 = 8.752% = 9%
What is the percent of lead in lead IV oxide Or how do i calculate it?
86.62(8)%The molar masses of the constituent elements must be known.M(Pb) = 2.072(1) x 102 gmol-1M(O) = 1.59994(3) x 10 gmol-1From these and their respective molar ratios in the compound, the total molar mass of the compound must be calculated.M(PbO2) = M(Pb) + 2M(O)M(PbO2) = (2.072 x 10 gmol-1 + 2(1.59994 gmol-1)) x 10M(PbO2) = 2.392(1) x 102 gmol-1From the molar mass of the element in question and its ratio, and the compound, their total masses present in one mole of compound must be calculated.m = nMm(Pb) = 1 mol x 2.072 x 102 gmol-1m(Pb) = 2.072(1) x 102 gm(PbO2) = 1 mol x 2.392(1) x 102 g (always 1 mole)m(PbO2) = 2.392(1) x 102 gFrom these, the percentage of the element in question present in the compound can be calculated.m(Pb) x 100%/m(PbO2) = 2.072 g x 100%/2.392 gm(Pb) x 100%/m(PbO2) = 86.62(8)%
The empirical formula of a compound is ch2its molecular mass is 70 gmol what is its molecular formula?
C5h10
What is the molecular formula of the compound CH2 with a molar mass 42.0 gmol?
C3H6
What is the molecular formula of the compound CH2 with molar mass 168 gmol?
c12h24
What is the molecular formula of the compound CH2 with molar mass 42.0 gmol?
c3h6
What is the molecular formula of the compound ch2 with molar mass equals 168 gmol?
c12h24
If an unknown hydrate MgCl2 and bullxH2O has a molecular mass of 203.30 gmol what is the numeric value of x in the formula?
This formula is for magnesium chloride hexahydrate: MgCl2.6H2O.
What is the molecular formula of a compound containing 89 cesium (Cs) and 11 oxygen (O) with a molar mass 298 gmol?
Cs2O2
A compound with the empirical formula SN was found in a subsequent experiment to have a molar mass of 184.32 gmol. What is the molecular formula of the compound?
The empirical formula of SN has a formula unit mass of the sum of the gram atomic masses of nitrogen and sulfur, i.e., about 46.0667. The gram molecular mass given in the problem divided by this formula unit mass is about 4. Therefore, the molecular formula is S4N4.
What is the molecular formula of a compound containing 89 percent cesium Cs and 11 percent oxygen O with a molar mass equals 298 gmol?
Cs2O2
What is average molecular weight of air?
The average molecular weight of dry air is 28.96 g/gmol.
Number-average molecular weight of a polypropylene is 1000000 gmol Compute the number-average degree of polymerization?
i got 23765.4
What is the percent by mass of h in c7 h8 the molecular weight of carbon is 12.0107 gmol and of hydrogen 1.00794 gmol answer in units of your answer must be within point one percent?
Given: M.M. Carbon - 12.0107; M.M. Hydrogen - 1.00794 Solution: The molecular mass of C7H8 is = (6 x 12.0107) + (7 x 1.00794) = 79.11978 g The total mass of hydrogen present is = (7 x 1.00794) = 7.05558 g Therefore, the % m/m of hydrogen is = (7.05558 g / 79.11978 g) x 100% = 8.9%
