General Chemistry 8/15

The thermite reaction occurs when a mixture of powdered aluminum and iron(III) oxide is ignited with

The thermite reaction occurs when a mixture of powdered aluminum and iron(III) oxide is ignited with a magnesium fuse. Using enthalpies...

How To Calculate An Empirical Formula And Molecular Formula : A Complete Guide With Examples

Empirical formula is the formula where atoms of elements are in their smallest whole number ratios. For example, is C3H6 an empirical...

What is the mass of 2.50 moles of oxygen gas?

What is the mass of 2.50 moles of oxygen gas? Solution: Oxygen gas is a diatomic element, which means its formula is O2. The molar mass...

List the intermolecular forces present in the following molecules: a. H2O b. NF3c. C2H6 d. C2H5OH

List the intermolecular forces present in the following molecules: a. H2O b. NF3 c. C2H6 d. C2H5OH Solution: Intermolecular forces are...

Hemoglobin, the oxygen-carrying protein in red blood cell, has 4 iron atoms per molecule and contain

Hemoglobin, the oxygen-carrying protein in red blood cell, has 4 iron atoms per molecule and contains 0.40 % iron by mass. Calculate the...

An ionic compound has the formula M2(NO3)2(PO4)2. What is the net charge on the metal ion (M) in thi

331 mg of an unknown protein (non electrolyte) is dissolved in enough water to make 5.00 ml of aqueo

331 mg of an unknown protein (non electrolyte) is dissolved in enough water to make 5.00 ml of aqueous solution at 300K, with an osmotic...

One atom of an unknown element is found to have a mass of 4.480 × 10−23g. What is the molar mass of

One atom of an unknown element is found to have a mass of 4.480 × 10^−23g. What is the molar mass of this element? Molar mass has units...

What is the mass of an iron atom in grams?

What is the mass of an iron atom in grams? We must first find the molar mass of iron on the Periodic Table, which is 55.845 g/mol. Notice...

Which of the following are diamagnetic? a. Na+ b. O c. S2- d. Cl

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