A 2.25- g sample of scandium metal is reacted with excess hydrochloric acid to produce 0.1502 g hydrogen gas. What is the formula of the scandium chloride produced in the reaction?
Answer to relevant QuestionsWhen M2S3(s) is heated in air, it is converted to MO2(s). A 4.000- g sample of M2S3(s) shows a decrease in mass of 0.277 g when it is heated in air. What is the average atomic mass of M? A 9.780-g gaseous mixture contains ethane (C2H6) and propane (C3H8). Complete combustion to form carbon dioxide and water requires 1.120 moles of oxygen gas. Calculate the mass percent of ethane in the original mixture. Silane (SiH4) is the silicon analogue of methane (CH4). It is prepared industrially according to the following equations: Si(s) + 3HCl(g) → HSiCl3(l) + H2(g) 4HSiCl3(l) → SiH4(g) + 3SiCl4(l) a. If 156 mL of HSiCl3 (d = ...Hydrogen cyanide gas is commercially prepared by the reaction of methane [CH4(g)], ammonia [NH3(g)], and oxygen [O2(g)] at a high temperature. The other product is gaseous water. a. Write a balanced chemical equation for the ...The density of a pure gaseous compound was measured at 0.00oC as a function of pressure to give the following results: Density (g/ L) ........... Pressure (atm) 0.17893 ...
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