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A sample of acetic acid is composed of 2.05 g of carbon and 2.73 g of oxygen. Calculate the mass of carbon in another sample of acetic acid that is composed of 3.27 g of oxygen.
Identify the number of atoms for each element in the formula shown below
Mg(ClO3)2
Which statement of Dalton's atomic theory corresponds to the law of multiple proportions?
Identify the statement that follows Dalton's atomic theory. Explain.
a. Water is formed when hydrogen and oxygen combine in a 1:2.5 ratio.
b. Copper can be made from iron atoms.
c. All atoms of zinc has the same mass and properties.
d. Carbon and nitrogen atoms have different physical properties but have identical chemical properties.
Based on Dalton's atomic theory, which reaction/s is/are impossible?
reaction A: CBr4 → CH4
reaction B: 2 H2 + O2 → 2 H2O
reaction C: N2 + 3 H2 → 2 NH3 + Cu
Methane (CH4) and ethylene (C2H2) are only composed of carbon and hydrogen. How much hydrogen would react with 1.78 g of carbon to produce methane and to produce ethylene? (Use the law of multiple proportions)
Given the following data:
Compound 1: 73.54% O and 26.46% N
Compound 2: 89.29% O and 10.71% N.
Demonstrate the law of multiple proportions by determining the formula of Compound 2 when Compound 1 is NO. (Compound 1 and 2 only contains nitrogen and oxygen)
Choose among the statements below which demonstrates the law of multiple proportions and explain your answer
A scientist in a parallel universe performs the Millikan oil-drop experiment. The unit of charge in that universe is gallic (ga). He obtained the following data for four oil droplets (A, B, C, and D):
A 2.06×10–11 ga
B 2.75×10–11 ga
C 4.13×10–11 ga
D 5.50×10–11 ga
Based on these observations, determine the charge on a single electron in ga units.
A scientist in a parallel universe performs the Millikan oil-drop experiment. The unit of charge in that universe is gallic (ga). He obtained the following data for four oil droplets (A, B, C, and D):
A 2.06×10–11 ga
B 2.75×10–11 ga
C 4.13×10–11 ga
D 5.50×10–11 ga
Using the charge of an electron as 6.88×10–12 ga, calculate the number of electrons on each drop.
Identify the statement below that was derived from the results of the Milikan experiment using charged oil drops.
The plum-pudding model of the atom predicted the structure of an atom. In this model, the electrons are embedded ('plums') in a positively charged 'pudding'. If this is the accurate model of the atom, what would be the outcome of Rutherford's experiment?
Determine which statement(s) is/are inconsistent with Rutherford's atomic theory.
a. An oxygen atom has 8 protons in its nucleus so there should be 8 electrons outside its nucleus.
b. Most of the mass of a chlorine atom is due to its 17 electrons.
c. Since protons are larger than electrons and a hydrogen atom only contains one proton and one electron, the volume of a hydrogen atom is mostly because of its proton.
d. A sulfur atom has 16 protons in its nucleus and 25 electrons outside of its nucleus.
Find the atomic mass of germanium based on the mass spectrum below. Use the graph and determine the approximate mass and percent intensity values. Use two significant figures.
