we have
8.4 mole N and 16.31 mole O.
Mole ratio:
N : O
8.4 : 16.31
or
8.4 / 8.4 : 16.31 / 8.4
or
1 : 1.94
or
1 : 2
thus
x = 1
and
complete chemical formula of the compound is NO2.
. An unknown compound has the following chemical formula: N,O2 where x stands for a hole...
1. An unknown compound has the following chemical formula: N₃0₂ where x stands for a hole number. Measurements also show that a certain sample of the unknown compound contains 8.4 mol of nitrogen and 16.31 mol of oxygen. Write the complete chemical formula of the compound.
An unknown compound has the following chemical formula: Mg(OH), where x stands for a whole number. Measurements also show that a certain sample of the unknown compound contains 6.50 mol of oxygen and 3.2 mol of magnesium. Write the complete chemical formula for the unknown compound.
An unknown compound has the following chemical formula: PCI, where x stands for a whole number. Measurements also show that a certain sample of the unknown compound contains 3.7 mol of phosphorus and 18.57 mol of chlorine. Write the complete chemical formula for the unknown compound. X 5 ?
O STOICHIOMETRY Finding chemical formulae from a mole ratio An unknown compound has the following chemical formula: PbO where x stands for a whole number. Measurements also show that a certain sample of the unknown compound contains 4.0 mol of oxygen and 3.9 mol of lead. Write the complete chemical formula for the unknown compound. X 5 ?
Finding chemical formulae from a mole ratio An unknown compound has the following chemical formula C,H Measurements also show that a certain sample of the unknown compound contains 6.2 mol of hydrogen Write the complete chemical formula for the unknown compound. and 2.08 mol of carbon Da Exp nation Think IP Asset Tag KIP port # 201-817-1090
8. An unknown compound has the following percent composition: 30.446% nitrogen and 69.554 % oxygen. The molar mass of this compound is 138.00 g/mol. Determine the empirical and molecular formula for this unknown. [Given molar masses: N 14.01 g/mol; O 16.00 g/mol] (8 Pointsl
I
need help finding the experimental formula unit, theoretical
formula unit and writing balanced chemical equations
CHEM 1211 Lah Mamal Revised 5eis Mole of oxygen in compound o cos Ratio: mole of magnesium : mole of oxygen (Show in this order, mol of Mg, colon Cl mole of O) o.ooi니 : 0 , 00631 Ratio: mole of magnesium : mole of oxygen expressed as a simple, whole number ratio (Show in this order, mol of Mg. colon C, mole of...
PARTI DETERMINATION OF "x" in KCIO DATA Unknown Identification Letter or Number Mass of test tube + MnO2 1.0979 Mass of test tube + MnO2 + sample Mass of test tube + residue after reaction complete 16.0586g 17-06909 16.5981 DATA ANALYSIS Mass of sample 1.0204g 10.4709 9 Mass of KCI 0.5295 Moles of 02_0.01472 Moles of KCI 0.00238 03 Ratio moles 02/moles KCl (report using correct sp a KCIO (3) Mno, b KCI (8) + O2(g) Coefficients b= KCIO, Subscript...
3. Suppose you have X Binom(n, p) where n is known and p is unknown. Typically, people use p = _ to estimate p, where X = Xi is simply a sample of size l. This might represent simultaneously flipping n coins (just once!) and counting the number of heads you see, where each coin has Pheads - p. Now, if both n and p are known, we know the variance V of X is just np(1-p) If p is...
PARTI DETERMINATION OF "x" in KCIO. DATA Unknown Identification Letter or Number Mass of test tube + MnO2 Mass of test tube + MnO2 + sample in. 1927 129614 1765919 Mass of test tube + residue after reaction complete DATA ANALYSIS Mass of sample_0.76879 Mass of oxygen_0.3075 a Mass of KCI 0.40 a Moles of 02 Moles of KCI Ratio moles 02/moles KCI (report using correct sp) – a KCIO, (s) who; b KCI (S) + CO2(g) Coefficients b= КСІ...