a sample of unknown ore was analyzed and found to contain 12.7% al,19.7%n, and 67.6%o. what is the empirical formula of this one
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a sample of unknown ore was analyzed and found to contain 12.7% al,19.7%n, and 67.6%o. what...
a sample of an unknown compound was analyzed and found to contain 19.97% phosphorus and oxygen. What is the empirical formula of the compound? 4, Calculate the empirical formula for the compound formed when 10.83 g of zinc are heated with sulfur to form 16.16 g of zinc sulfide.
An
unknown hydrated salt was analyzed and found to contain 16.4%
water. If the anhydrous salt has a formula mass of 183.0 g, find
the empirical formula of the hydrate.
LOVE 3. An unknown hydrated salt was analyzed and found to contain 16.4 % water. If the anhydrous salt has a formula mass of 183.0 g, find the empirical formula of the hydrate. 4. Find the empirical formula of the hydrated salt, Caso, XH,O, if it contains 20.9 % water
10. A sample weighing 106.7 grams is analyzed and found to contain 42.97 g of potassium, 28.57 g of chromium; the remainder is oxygen. What is the empirical, or simplest, formula of this substance? 1027 11·An organic compound is analyzed and found to be 38.71 % carbon and 9.68 % hydrogen; the rest is oxygen. If the molecular weight of this substance is 62 g/mol, what is the molecular formula of this substance? 12. A sample weighing 112.2 grams is...
3. A compound is analyzed and found to contain 65.4% C, 5.5% H, and 29.1% O by mass. In a separate experiment, the compound is found to effuse through an opening at a rate of 3.0 x 10−5 mol/min. A sample of neon gas effused through the same opening at a rate of 7.0 x 10−5 mol/min. A. What is the empirical formula of the compound? B. What is the molecular formula of the compound?
3. A compound is analyzed and found to contain 65.4% C, 5.5% H, and 29.1%O by mass. In a separate experiment, the compound is found to effuse through an opening at a rate of 3.0 x 10-5 mol/min. A sample of neon gas effused through the same opening at a rate of 7.0 x 10-5 mol/min. A. What is the empirical formula of the compound? (9 pts.) B. What is the molecular formula of the compound? (6 pts.)
20. A compound of sulfur and fluorine was analyzed and found to contain 70.3% fluorine by mass. What is the empirical formula of the compound and its empirical formula mass?
An unknown salt AS XH2O was analyzed and found to contain 16.4% water. If the anhydrous salt has a formula mass of 183 amu, find the water of crystallization (X) for the hydrate.
A compound known to contain only the elements manganese and oxygen was analyzed and found to contain 77.45% manganese by mass. What is the empirical formula of this compound? Atomic weights of the elements encountered in this problem are as follows: O 15.9994 Mn 54.9381 Mno Mn20 MnO2 Mn₂O₃ O Mn₃02
3. A compound is analyzed and found to contain 65.4% C5.5% Hand 29.1%by mass. In a separate experiment, the compound is found to effuse through an opening at a rate of 3.0 * 10 ^ - 5 * m * o * l / (min) . A sample of neon gas effused through the same opening at a rate of 7.0 * 10 ^ - 5 * m * o * l / (min) . A. What is the empirical...
A sample of an unkown compound was analyzed and was found to contain 0.178 moles of tin and 0.712 moles of chlorine. What is the formula of the compound?