please post other questions separately
Gas Laws Pre-Lab Name Section 1. Calculate the number of moles of hydrogen gas generated when...
Gas Laws Pre-Lab Name Section 1. Calculate the number of moles of hydrogen gas generated when 0.214 g of zinc reacts with hydrochloric acid Zn(s) + 2HCl(aq) --ZnCl (aq) +Hy(@) 2. Calculate the number of moles of hydrogen gas generated if the cudiometer volume is 76.34 mL, the total pressure of H, generated over water is measured to be 755.0 torr, and the temperature is 22.0°C. P o ar 22.0°C = 19.8 torr) (R = 62.36 L torr/mol K or...
2. Calculate the number of moles of hydrogen gas generated if the cudiometer volume is 76.34 mL, the total pressure of H, generated over water is measured to be 755.0 torr, and the temperature is 22.0°C. (Pxo ar 22.0°C - 19.8 torr) (R = 62.36 L-torr/mol Kor 0.08206 L atm/mol K) 3. What is the percent yield of hydrogen gas if your answer from question 2 is the actual yield and your answer from question 1 is the theoretical yield?
Hydrogen gas is produced by the reaction of hydrochloric acid on zinc metal: Zn (s) + HCl (aq) --> ZnCl (aq) + H2 (g) If 155ml of gas was collected at 26℃ and the total pressure was 1.12 bar how many milli-moles (mmol) of hydrogen was produced? Vapour pressure of water at 26℃: 0.0233 barr, R = 0.08314 L*bar/mol*K MM's: Zn = 65.39 g/mol, H = 1.008 g/mol, Cl = 35.35g/mol
answer all please 31. Calculate the number of moles and the mass of gas in 3.40 L of He at STP. A. 0.152 mol 0.608 g B. 76.2 mol. 305 g C. 0.152 mol, 0.0379 g D. 76.2 mol. 19.0 g E. 1.00 mol, 4.00 g 32. Calculate the number of moles in 95.0 g of O., and the volume that it would occupy at 80.0°C and 3.50 atm A 11.9 mol, 266 L B. 5.94 mol, 11.1 L C....
Taking into account the vapor pressure of water, how many moles of hydrogen gas, n, are present in 343 mL at 752 torr and 29 ∘C?The value of the gas constant R is 0.08206 L⋅atm/(mol⋅K). You may also find the conversion factors 1 atm=760 torr and TK=TC+273 useful. Express the number of moles to three significant figures.
#1. Zinc metal is added to hydrochloric acid to generate hydrogen gas and is collected over a liquid whose vapor pressure at 18.4 °C is 59.7 torr. The volume of the mixture is 7.7 L and its total pressure is 0.86 atm. Determine the partial pressure of the hydrogen gas in this mixture. Respond with the pressure to the nearest tenth of a torr. #2. Zinc metal is added to hydrochloric acid to generate hydrogen gas and is collected over...
Part C Taking into account the vapor pressure of water, how many moles of hydrogen gas, n, are present in 311 mL at 752 torr and 29 °C?The value of the gas constant Ris 0.08206 L-atm/(mol-K). You may also find the conversion factors 1 atm = 760 torr and Tk = Te + 273 useful. Express the number of moles to three significant figures. View Available Hint(s) 190 AED ? mol Submit
PRE- LAB QUESTIONS NAME: 1. Write a balanced chemical equation for the reaction of aluminum metal with hydrochloric acid. UAL TI3 3H2 ZAltaHCI od bw 2. Use the equation above to calculate the mass of aluminum that is needed to prepare between mL of hydrogen gas. The laboratory temperature is 22.0°C and the barometric pressure is 760.0 tor. 966 04m570 =0.0227 Pu K AT D.032 24S K 3. Calculate the minimum volume of 6.0 M HCI that you will need...
please show steps. thanks ! Experiment 19 Gas Stoichiometry and the Gas Laws The relationship between the physical properties of a gas, and the moles, is given by the “Ideal Gas Law:" PV=nRT where n-number of moles R=the ideal gas constant: 0.0821 atm L mole 'Kor 62.4 L torr molek In this experiment, the theoretical yield of gas, will be compared to the experimental yield. The reaction of aluminum with hydrochloric acid produces hydrogen according to the balanced equation below....
Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following equation: Zn(s)+ 2HCIaq) ZnCh(aq)+H() The product gas, He, is collected over water at a temperature of 20 °C and a pressure of 760 mm Hg. If the wet H gas formed occupies a volume of 7.53 L, the number of moles of Zn reacted was Hg at 20 °c mol. The vapor pressure of water is 17.5 mm