RiRi5855 RiRi5855

15-12-2022
Chemistry

Answered

this is the chemical formula for talc (the main ingredient in talcum powder): an analytical chemist has determined by measurements that there are moles of magnesium in a sample of talc. how many moles of oxygen are in the sample? be sure your answer has the correct number of significant digits.

Answer :

Other Questions

this is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar): an analytical chemist has determined by measurements that the

the molecular formula for caffeine is c8h10o2n4. how many moles of c atoms are present in a 2.0 g sample of caffeine?

consider the equilibrium system described by the chemical reaction below. if 0.1908 moles of co2, 0.0908 moles of co and 0.0092 moles of h2o are present in a 2.

a chemist adds of a zinc nitrate solution to a reaction flask. calculate the millimoles of zinc nitrate the chemist has added to the flask. round your answer to

a chemist reacted 0.20 moles 4-aminophenol (109.13 g/mol) with 0.25 moles of acetic anhydride (102.09 g/mol) to synthesize acetaminophen. if 22 g acetaminophen

the natural abundance of calcium in the earth's crust is 3.4% by mass. how many calcium atoms are present in a 1.50 g sample of the earth's crust?

a sammple 0f 0.010 mole of oxygen gas is confine at 127c and .80 atmospheres. what would be the pressure of this sample at 27c and thw ame volume

calculate the molarity of a kcl solution prepared by dissolving 1.01 moles of kcl in 250. ml of water. calculate the molarity of a kcl solution prepared by diss