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In which of the oxides: manganese (IV) oxide or magnesia is a greater percentage by mass of non-metal, and in which there is a greater percentage by mass of metal. Give the formulas of both oxides, write down the calculations and the answer?
ammonium carbonate
A sample of iron oxide has a mass of 1.596 g. On analysis it was found to contain 1.116 g of iron and 0.48 grams of oxygen. Find the percentage composition of this compound?
The total mass of the iron oxide is 1.596 g. The percentage composition by mass of iron is (1.116 g / 1.596 g) x 100% = 70%. The percentage composition by mass of oxygen is (0.48 g / 1.596 g) x 100% = 30%. So, the compound is 70% iron and 30% oxygen.
How do you calculate the theoretical mass percentage of oxygen in potassium chlorate?
To calculate the theoretical mass percentage of oxygen in potassium chlorate, you would use the formula weight of oxygen divided by the formula weight of the compound (potassium chlorate) multiplied by 100. The formula weight of oxygen is 16.00 g/mol and the formula weight of potassium chlorate (KClO3) is 122.55 g/mol. So, (16.00 g/mol / 122.55 g/mol) * 100 = 13.06%.
What is the percentage composition of silicon dioxide?
Silicon dioxide is composed of 46.7% silicon and 53.3% oxygen by mass.
What percentage by mass of table sugar is hydrogen?
Table sugar (sucrose) has a molecular formula of C12H22O11, which means it is composed of carbon, hydrogen, and oxygen. To calculate the percentage by mass of hydrogen in table sugar, divide the mass of hydrogen by the total mass of the compound and then multiply by 100. In this case, hydrogen has a total mass of 22 g/mol out of a total molecular mass of 342 g/mol, which gives a percentage of approximately 6.4% hydrogen by mass in table sugar.
What is the percentage of oxygen by mass in water?
The percentage of oxygen by mass in water is approximately 88.8%.
What is the percentage of oxygen in the Earth's atmosphere by mass?
The percentage of oxygen in the Earth's atmosphere by mass is approximately 21.
What is the percentage composition of oxygen in C7H15NO3?
The percentage of oxygen (in mass) is 29,776 %.
What is the percentage mass of oxygen in morphine?
The chemical formula for morphine is C17H19NO3. To calculate the percentage mass of oxygen in morphine, determine the molar mass of oxygen in the formula (3(16 g/mol)) and divide by the molar mass of morphine (285 g/mol), then multiply by 100 to get the percentage. The percentage mass of oxygen in morphine is approximately 16.8%.
What is the percentage mass of oxygen in MgSO4?
The molar mass of MgSO4 is 120.37 g/mol. The molar mass of oxygen is 16.00 g/mol. To find the percentage mass of oxygen in MgSO4, we divide the molar mass of oxygen by the molar mass of MgSO4 and multiply by 100 to get 47.27%.
What is the percentage mass of oxygen in cocaine?
Cocaine is C17H21NO4 and has a molar mass of 303.353 g/mole. Mass of oxygen in cocaine is 4x16 = 64. So, % oxygen by mass is 64/303.353 (x100) = 21% (to 2 sig. figs)
Oxygen is the most abundant element in?
As mass percentage oxygen is the most abundant.
How do you find the percent of oxygen by mass in a compound?
To find the percent of oxygen by mass in a compound, you need to know the molar mass of the compound and the molar mass of oxygen. Divide the molar mass of oxygen by the molar mass of the compound and multiply by 100 to get the percentage.
What is the percentage of oxygen in sodium nitrate(NaNO3)?
The percentage of oxygen in sodium nitrate (NaNO3) is 53.9%. This is calculated by dividing the molar mass of oxygen in the compound by the molar mass of the entire compound and then multiplying by 100.
What is te percent of oxygen in C2H4O2?
In C2H4O2 (acetic acid), there are two oxygen atoms. To find the percentage of oxygen in acetic acid, we calculate the molar mass of the oxygen atoms and divide it by the molar mass of the whole compound, then multiply by 100 to get the percentage. This results in a percentage of approximately 40% oxygen in acetic acid.
What are the steps on finding what the mass of oxygen in a 10 g of zircon?
Well, the formula for zircon is ZrSiO4 so, this means that you need to find the molar mass of the entire thing. Once you have this you find the percent mass that oxygen takes, by dividing the mass of the oxygen by the mass of the total compound. Then you multiply this number by the 10g and voila.
What is the percentage composition for CO?
The molecular mass of CO is 28. The carbon percentage by mass is ~43%. Hence the oxygen percentage by mass is ~57%.
