When Al metal reacts with HBr, aluminum bromide and hydrogen gas are formed. If you started with 41.2 grams of HBr, how many grams of aluminum bromide would you expect to form?
Molar mass of HBr,
MM = 1*MM(H) + 1*MM(Br)
= 1*1.008 + 1*79.9
= 80.908 g/mol
mass of HBr = 41.2 g
mol of HBr = (mass)/(molar mass)
= 41.2/80.91
= 0.5092 mol
Balanced chemical equation is:
2 Al + 6 HBr —> 2 AlBr3 + 3 H2
According to balanced equation
mol of AlBr3 formed = (2/6)* moles of HBr
= (2/6)*0.5092
= 0.1697 mol
Molar mass of AlBr3,
MM = 1*MM(Al) + 3*MM(Br)
= 1*26.98 + 3*79.9
= 266.68 g/mol
mass of AlBr3 = number of mol * molar mass
= 0.1697*2.667*10^2
= 45.27 g
Answer: 45.3 g
When Al metal reacts with HBr, aluminum bromide and hydrogen gas are formed. If you started...
Magnesium metal reacts with hydrogen chloride gas to form hydrogen gas and solid magnesium chloride. If 20.0g of magnesium reacts with 25.0g of hydrogen chloride, how many grams of magnesium chloride will be produced?
Aluminum reacts with excess hydrochloric acid to form aqueous aluminum chloride and 30.7 mL of hydrogen gas over water at 27°C and 751 mmHg. How many grams of aluminum reacted? The partial pressure of water at 27°C is 26.8 mmHg. g Al
What is the mass of aluminum metal that reacts to give 1.5 g of hydrogen gas? 2 Al(s)+6 HCl(aq)2 AICI3(aq) + 3 H2(g)
questions 4 through 8 use the following reaction between Aluminum and hydrochloric acid 2 Al(s) + 6 HCI (aq) → 2 AICI: (aq) + 3 H2(g) When 3.95 moles aluminum reacts with excess hydrochloric acid how many moles of hydrogen gas form? When 10.6 moles hydrochloric acid reacts with excess aluminum how many moles of hydrogen gas form? When 3.95 moles aluminum reacts with 10.6 moles hydrochloric acid how many moles of hydrogen gas form? What is the theoretical yield...
2) Hydrogen gas is produced when aluminum reacts with hydrochloric acid: Al(s) + HCl(aq) AlCl3(aq) + H2(g) [Unbalanced] - If 940.1 mL of wet hydrogen is collected over water at 23.7 °C and a barometric pressure of 748.69 torr, how many grams of Al have been consumed? (The vapor pressure of water at 23.7 °C is 21.98 mmHg) 3) Follow auf bau principle for the questions below. Formatting must be done correctly. a) Type the complete electron configuration of Rb...
Solid aluminum metal reacts with chlorine gas to produce solid aluminum chloride crystals. Assuming 100% yield, how many grams of aluminum chloride crystals will be produced if there are 61.5 grams of solid aluminum available?
When hydrogen gas reacts with nitrogen gas, ammonia gas is formed according to the following equation: 3H2(g) + N2(g) > 2NH3(g) how many mol of ammonia gas is formed when 0.40 g of hydrogen gas is reacted completely with excess nitrogen gas?
Calculate the percent yield of your product assuming you started with 0.545 grams of Al metal and collect 5.25 grams of alum product? 1) Calculate the number of moles of Al used in your reaction. 2) Calculate the molar mass of alum, potassium aluminum sulfate dodecahydrate (do not forget to include the associated water in you molar mass calculation). 3) This experiment has been set up such that Al is the limiting reagent,(determines the maximum amount of product that could...
If 108 grams of aluminum metal are consumed, how many grams of hydrogen gas will be produced? 2Al+6HCl -> 2AlCl3 + 3H2
22. Consider the reaction: solid aluminum and oxygen gas react to form solid aluminum oxide. a. Write and balance the equation. b. How many moles of aluminum are required to react with 47.2 grams of oxygen? c. If 14.0 g of aluminum reacts with oxygen gas, how many grams of aluminum oxide will form? d. How many atoms of aluminum are started with in part c? e. If only 19.7 g of aluminum oxide formed in the reaction from part...