What is the empirical formula of a compound composed of 22.1 g22.1 g of potassium (KK) and 4.52 g4.52 g of oxygen (OO)? Insert subscripts as needed.

A 3.000 g sample of a gaseous compound was found to contain 2.560 g of carbon and 0.440 g of hydrogen. A) What is the simplest formula of the compound (Write C first and then H)? You won't be able to make the numbers a subscript. For instance, for MgCl2 enter MgCl2. B) The molar mass of the compound was found to be 42.08 g/mol. What is the molecular formula of the compound? You won't be able to make the numbers a subscript. For instance, for MgCl2 enter MgCl2.

Complete the table below for calculating the molar mass of the ionic compound calcium iodide. Cation Anion Formula Ca²+ r Molar mass of ion 22 X g/mol X g/mol X X Number of ions x mol x mol II = Mass of ion in one mole of calcium iodide X g x g g

Combustion analysis of 2.400 g of an unknown compound containing carbon, hydrogen, and oxygen produced 4.171 g of CO2 and 2.268 g of H₂O. What is the empirical formula of the compound? The molar mass of CO₂ is 44.01 g mol-¹ and H₂O is 18.02 g mol-1. O C₂H1003 O C₂H5O2 O C3H8O2 O C₂H5O

Click in the answer box to activate the palette. Menthol is a flavoring agent extracted from peppermint oil. It contains C, H, and O. In one combustion analysis, 10.00 mg of the substance yields 11.53 mg H,0 and 28.16 mg CO2. What is the empirical formula of menthol? Add subscripts to complete the empirical formula. CHO

A student performed a similar experiment to the one you performed: They took a crucible and lid, cleaned them, heated them over a flame, and after cooling found their combined mass to be 22.538 g. The student then added a sample of zinc(II) sulfate hydrate (ZnSO4·“n”H2O) to the crucible so the combined mass of the sample, crucible, and lid was 25.896 g. They heated this sample for 10 minutes with the lid ajar, let it cool, and measured the mass of the crucible, sample, and lid to be 25.054 g. a. Based on this experiment, what is the formula for they hydrated zinc(II) sulfate compound? b. The student later looked on the reagent bottle for zinc(II) sulfate hydrate and found the actual formula was ZnSO4·7H2O. If everything had been done correctly, what value should the student have expected for the final mass of their sample, crucible, and lid after heating?

In a combustion analysis experiment, an unknown hydrocarbon produced 69.97749 g of carbon dioxide and 38.19392 g of water. Assume all of the carbon present in the initial sample ends up in the carbon dioxide produced and that all of the hydrogen present in the original sample ends up in the water produced. What is the empirical formula of the hydrocarbon?

Determine the empirical formula of ascorbic acid if it is composed of 40.92% carbon, 4.58% hydrogen, and 54.50% oxygen. If the molar mass of the acid is 176.14 g/mole, calculate the molecular formula of the acid. Could you please show me the process of how to set it up.