A compound contains arsenic and oxygen as its only elements. A 1.626 g sample of the...
A compound contains arsenic and oxygen as its only elements. A 1.626 g sample of the compound contains 1.060 g of arsenic. What is the empirical formula for the compound?
Homework Answers
As mass = 1.060 g
As moles = mass / molar mass
= 1.060 / 74.92
= 0.0142
mass of O =1.626 - 1.060 = 0.566
moles of O = 0.566 / 16 = 0.0354
moles ratio of As and O = 0.0142 : 0.0354
= 1 : 2.5
= 2 : 5
empirical formula = As2O5
Add Answer to:
A compound contains arsenic and oxygen as its only elements. A
1.626 g sample of the...
A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields...
A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields 15.48 mg CO2 and 7.39 mg H20. The molar mass of the compound is 182.2 g/mol What are the empirical and molecular formulas of the compound? (Enter the elements in the order: C, H, O) The empirical formula: The molecular formula
A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields...
A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields 15.48 mg CO2 and 7.39 mg H2O. The molar mass of the compound is 182.2 g/mol. What are the empirical and molecular formulas of the compound? (Enter the elements in the order: C, H, O.) The empirical formula:? The molecular formula:?
A 0.158 g sample of a compound containing the elements carbon, hydrogen, oxygen, and sulphur was...
A 0.158 g sample of a compound containing the elements carbon, hydrogen, oxygen, and sulphur was burned completely, yielding 0.110 g CO2 and 0.0677 g H2O. In a separate experiment, all the sulphur in another 0.158 g sample was converted to 0.292 g of BaSO4. What is the empirical formula of the unknown compound?
A compound of arsenic and oxygen contains 75.7% arsenic by mass . What is the ratio...
A compound of arsenic and oxygen contains 75.7% arsenic by mass . What is the ratio of arsenic and oxygen atoms in the compound?
Question 22 of 38 > A 12.36 g sample of a compound contains 7.89 g of...
Question 22 of 38 > A 12.36 g sample of a compound contains 7.89 g of iron, Fe, 1.46 g of phosphorus, P, and oxygen, O. Calculate the empirical formula for the compound. empirical formula:
Combustion analysis 12.01 g of an unknown sample, which contains only carbon, hydrogen and oxygen, produced...
Combustion analysis 12.01 g of an unknown sample, which
contains only carbon, hydrogen and oxygen, produced 14.08 g co2 and
4.32 h2o. Determine the empirical formula and molecular formula of
the unknown sample, while the molar mass for the unknown sample is
150.078 g/mol.
15 pts) Combustion analysis 12.01 g of an unknown sample, which contains only carbon, hydrogen, and oxygen, roduced 14.08 g CO2 and 4.32 g H20. Determine the empirical formula and molecular formula of the unknown sample,...
2) A 1.000 g sample of a hydrocarbon (which is a compound that contains only carbon...
2) A 1.000 g sample of a hydrocarbon (which is a compound that contains only carbon and hydrogen) was burned in oxygen, and the carbon dioxide and water produced were carefully collected and weighed. The mass of the carbon dioxide was 3.385 g, and the mass of the water was 0.692 g. What was the empirical formula of the hydrocarbon? A. C5H12 B. CsH6 C. CįH6 D. C H2 E. CįH star 1.00
What is the empirical formula of a compound which contains only phosphorus and oxygen if a...
What is the empirical formula of a compound which contains only phosphorus and oxygen if a 4.19 gram sample of the compound contains 1.83 grams of oxygen and 2.36 grams of phosphorus? List the phosphorus first in your answer. You will not be able to type subscripts. Just type the numbers where they go. For example, S2O3 would be typed in as S2O3.
A 14.51 g sample of a compound contains 4.63 g of potassium, K, 4.20 g of...
A 14.51 g sample of a compound contains 4.63 g of potassium, K, 4.20 g of chlorine, Cl, and oxygen, O. Calculate the empirical formula. Insert subscripts as needed. Empirical formula: KCIO
A 15.46 g sample of a compound contains 9.87 g of iron, Fe, 1.82 g of...
A 15.46 g sample of a compound contains 9.87 g of iron, Fe, 1.82 g of phosphorus, P, and oxygen, O. Calculate the empirical formula for the compound.
A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields 15.48 mg CO2 and 7.39 mg H20. The molar mass of the compound is 182.2 g/mol What are the empirical and molecular formulas of the compound? (Enter the elements in the order: C, H, O) The empirical formula: The molecular formula
Question 22 of 38 > A 12.36 g sample of a compound contains 7.89 g of iron, Fe, 1.46 g of phosphorus, P, and oxygen, O. Calculate the empirical formula for the compound. empirical formula:
Combustion analysis 12.01 g of an unknown sample, which
contains only carbon, hydrogen and oxygen, produced 14.08 g co2 and
4.32 h2o. Determine the empirical formula and molecular formula of
the unknown sample, while the molar mass for the unknown sample is
150.078 g/mol.
15 pts) Combustion analysis 12.01 g of an unknown sample, which contains only carbon, hydrogen, and oxygen, roduced 14.08 g CO2 and 4.32 g H20. Determine the empirical formula and molecular formula of the unknown sample,...
2) A 1.000 g sample of a hydrocarbon (which is a compound that contains only carbon and hydrogen) was burned in oxygen, and the carbon dioxide and water produced were carefully collected and weighed. The mass of the carbon dioxide was 3.385 g, and the mass of the water was 0.692 g. What was the empirical formula of the hydrocarbon? A. C5H12 B. CsH6 C. CįH6 D. C H2 E. CįH star 1.00
A 14.51 g sample of a compound contains 4.63 g of potassium, K, 4.20 g of chlorine, Cl, and oxygen, O. Calculate the empirical formula. Insert subscripts as needed. Empirical formula: KCIO
Most questions answered within 3 hours.
-
I have to write a 20-page Philosophy paper about a major problem
in the world and...
asked 10 minutes ago -
Explain why/how human cells are highly resistant to
immortalization and transformation in comparison with mice
cells.
asked 15 minutes ago -
Suppose you have two tables: Table
Product:
PROD_ID
PROD_NAME
PROD_PRICE
PROD_PROD_DATE
PROD_VENDOR
1101
Table
100
1-Jan-18...
asked 14 minutes ago -
How many grams of ice at -5.7 ∘C can be completely converted to
liquid at 20.0...
asked 15 minutes ago -
Chapter 15 Global Business Today by Charles W.L.Hill
Know the factors that influence whether a firm...
asked 16 minutes ago -
Arrange these halides in decreasing order of reactivity toward
I- in acetone:
n-butyl bromide, sec-butyl bromide,...
asked 36 minutes ago -
Light from a helium-neon laser (λ = 632.8 nm) passes through a
single slit. The angle...
asked 32 minutes ago -
A rod made of cobalt with a mass of 0.80 kg is heated to 850°C,
then...
asked 38 minutes ago -
Suppose the price elasticity of demand for movies is -1.5. If
the price of movies increase...
asked 39 minutes ago -
Two resistors, of 3.2 Ω and 5.8 Ω, are connected in parallel to
the terminals of...
asked 36 minutes ago -
Regardless of the system used in departmental cost analysis:
Multiple Choice
Neither direct nor indirect costs...
asked 42 minutes ago -
The peak voltage of the source from problem 4 is 12 V. You
notice that the...
asked 52 minutes ago