Fill in the name and empirical formula of each ionic compound that could be formed from the ions in this table: Some ionic compounds cation anion empirical formula name of compound K BrO, KBrO, potassium bromite K BrO KBRO ptassium bromate Pb Pb MnO lead(II) permanganate

please answer quickly

..happy to take a two question hit, but I need a,b,and c please.A sample of a mixture containing an unknown hydrocarbon and some nitrogen dioxide, NO2, had a totalmass of 31.25 grams. The mixture was analyzed using combustion analysis, producing 78.44 g of carbondioxide, CO2, and 32.12 g of water, H2O.a) Calculate the empirical formula of the hydrocarbon. b) The molar mass of the compound was found to be 252.48 g/mol. What is the molecular formula of thehydrocarbon? c) What percentage (by mass) of the original sample was the hydrocarbon?

A sample is found to contain 66.8 % NaHCO3 by mass. What is the mass of NaHCO, in 4.25 g of the sample? Type answer:

||| = O ATOMS, IONS AND MOLECULES Naming ionic compounds with common polyatomic ions Fill in the name and empirical formula of each ionic compound that could be formed from the ions in this table: cation Pb 4+ 3+ Fe 2+ Pb²+ Explanation anion CH, CO2 CN 103 Check Some ionic compounds empirical formula www-awu.aleks.com 0 name of compound X 00 Ś Ⓒ2023 McGraw Hill LLC.

How many moles are in 2.3*10^(-4) moles of calcium phosphate, Ca_(3)(PO_(3))3

QUESTION 2 The formula weight of ammonium sulfate ((NH 4) 2SO 4), rounded to the nearest integer, is amu.

Find the molecular formula if the empirical formula is C 2 H 3 O 2 and the molar mass is 105.1 g/mol.

-) x Determine the quantity of moles in 1.81 x 1024 atoms of Na 3.00 Question 6 of 14 0.765 2.00 ANSWER RES 1.81 x 1024 6.02

Help please. Empirical formula