What is the #"empirical formula"#?
What is the mass of oxygen in 8 moles of carbon dioxide?
How many moles of #S# are in 25 g of #S#?
What is the mass in grams of .000221 mol of carbon?
What is the mass percent of nitrogen in ammonium carbonate, #(NH_4)_2CO_3#?
In a sample of carbon dioxide, there is a #3.2*g# with respect to oxygen...what is the mass of carbon dioxide?
What is the mass of .50 moles of chromium(II) oxide?
How many chloride ions are there in 4.50 mol of aluminum chloride?
What is the molar mass of #C_6H_6#?
What is the mass of #3.65 * 10^-2# mol #K_2SO_4#?
How can an empirical formula be interpreted?
#Na_3N# decomposes to form sodium and nitrogen gas at STP. If 13.7 L of nitrogen is produced, how many moles of #Na_3N# was used (22.4 L = 1 mole of any gas) ?
What is the molar mass of an ideal gas if a 0.622 g sample of this gas occupies a volume of 300 mL at 35 Â°C and 789 mm Hg?
What is the number of oxygen atoms in #Al_2(SO_4)_3#?
How many grams of water react to form 6.21 moles of #Ca(OH)_2# in #CaO(s) + H_2O(l) -> Ca(OH)_2(s)#?
What is the mass of two moles of oxygen gas(O2)?
What is the empirical formula of a compound that contains 25.92 percent nitrogen and 74.07 percent oxygen?
How many moles of Cu are in 10.0 grams of Cu?
In the combustion analysis of an unknown compound containing only carbon , hydrogen and oxygen, the grams of oxygen are found from the grams of?
A) CO2 and unknown compound
B) CO2,H2O and unknown compound
Why is the ratio of the mass of carbon to the mass of hydrogen #3:1# with respect to methane?
How many atoms of each element are present in 1 mole of #H_2SO_4#?
How do you calculate the number of oxygen atoms in 9.20 moles of magnesium iodate?
If the mole fraction of #"NaCl"# in a solution is #0.125#, what is the percent by mass of #"NaCl"#?
How do I verify the percent composition of #"MgSO"_4cdotx"H"_2"O"# in this Epsom Salt package and solve for #x#?
What is the empirical formula for the compound that is made of 1.85 moles of nitrogen and 4.63 moles of oxygen?
How would you determine the empirical formula of a compound found to contain 63.50% silver, 8.25% nitrogen, and the remainder oxygen.?
What is the empirical formula of a substance with 74.0% C , 8.65% H, and 17.4% N?
What is the formula for ammonium nitrate?
How do you find the number of molecules or ions of .25 mol #K^+#?
At STP, what is the volume of 7.08 mol of nitrogen gas?
How many molecules are present in 1kg mole of a substance?
What is the empirical formula of a phosphoric acid that contains 0.3086 g of hydrogen, 3.161 g of phosphorus, and 6.531 g of oxygen?
How many moles of #Na^+# ions are in 150 mL of a 0.200 M #Na_3PO_4# solution?
What is the empirical formula of a compound of uranium and fluorine that is composed of 67.6% uranium and 32.4% fluorine?
How many grams are in #12.4*10^15# atoms of neon?
A certain sugar has a chemical composition of 40 % carbon, 6.6 % hydrogen, and 53.3 percent oxygen. The molar mass is 180 g/mol. What is the molecular formula?
What is the mass of 5.99 mole of carbon monoxide?
What is the molecular formula of a substance that decomposes into 133 g of H and 21.3 g of O, and was found to have a molar mass of 34.1 g?
What is the mass of 0.35 moles of oxygen gas molecules?
What is percentage content of carbon by mass in #Ca(HCO_3)_2#?
A student collects 425 mL of oxygen at a temperature of 24Â°C and a pressure of 0.899 atm. How many moles of oxygen did the student collect?
What is the percent composition of water in #Na_2S â€¢ 9H_2O?#
How do you determine the mass of potassium in 33.5 g of KCl?
What is the mass of 38.4 mol of the element nickel?
How many formula units are present in a #12.6*g# mass of #MgCl_2#?
How many gold atoms are contained in 0.650 grams of gold?
What is the mass of #3.543 * 10^23# atoms of magnesium?
How many atoms are present in a #13.9*g# mass of #"carbon disulfide"#?
For a mass of #1*g# with respect to hydrogen atoms, and a mass of #63.5*g# with respect to copper atoms, how do the numbers of each sets atoms compare?
A pure organic substance (1.000 g) containing C, H, and O, undergoes combustion analysis. The mass of the water obtained is 0.6662 g. What is the mass percent of hydrogen in the compound?
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