Since mercury is a safety hazard, we have decided to use water instead in our barometer. What would be the height of H₂O at standard atmospheric pressure? PH,o = 0.997 g/m 9= 9.806 65 m/² 1Pa = 1 ks/ms²

Q: If sufficient acid is used to react completely with 10.5 grams of Mg ,…

A: Magnesium reacts with hydrochloric acid to form magnesium chloride and hydrogen gas. The equation…

Q: 5. A 5L car tire is filled with N2 to a pressure of 4 atm at 18°C. (a) How many grams of N2 present…

A: Given  Volume  = 5 Liter  Pressure of N2  = 4 atm  Temperature ( T ) = 18 ℃…

Q: 40.0 mL of a 3.79 M solution of H2O2 decomposes according to this reaction: 2 H2O2 (aq) → 2 H20(1) +…

A: The reaction taking place is given as, => 2 H2O2 (aq) ------> 2 H2O (l) + O2 (g)  Given :…

Q: Q1.A glass vessel was filled with an unknown quantity of nitrogen gas and the pressure at 28°C was…

A: Hii there, since there are multiple questions posted. We are answering first question. If you need…

Q: A.When this equation is balanced, what is the sum of the coefficients? B.How many L of H 2 are made…

A: The solution is as follows :

Q: number of CO molecules

A:

Q: A mixture of CO₂ and Kr weighs 29.6 g and exerts a pressure of 0.895 atm in its container. Since Kr…

A: Given Weight of mixture = 29.6 g Total pressure = 0.895 Pressure due to Kr = 0.295 atm

Q: A 27.4-mL volume of HCl solution reacts completely with 59.0 mL of aqueous Na2CO3.  The volume of…

A: According to ideal gas law, PV = nRT where P = pressure of CO2 in atm = 725 / 760 = 0.954 atm…

Q: If 1.5234 grams of H2C2O4·2H2Ois dissolved in water to prepare a0.250 L solution, identify the…

A: Given that, the mass of compound H2C2O4.2H2O = 1.5234 g Volume of solution that has to be prepared…

Q: A metal cylinder with a capacity of 6.0 L is filled with compressed propane (C3H8). The pressure and…

A: Given: Volume = 6.0 L Initial pressure of cylinder = 120 atm Initial temperature of cylinder =  75…

Q: What volume of H2 gas, measured at 65˚C and 810. torr, can be obtained by reacting 7.00 g magnesium…

A: The collected parameters of the product, H2(g) are: Temperature, T = 65 oC + 273.15 = 338.15 K…

Q: 10:07 PM Mon Jul 3 < ... Question 5 of 8 Complete the balanced chemical reaction for the following…

A: Balanced chemical equation is the equation in which number of atoms on both sides of equation are…

Q: how many moles of oxygen are required to make 3.8 moles of water?

A:

Q: If the molecular weight of air is 28.9, what is the density of air at atmospheric pressure and a…

A:

Q: Calculate the total volume of gas (at 29 °C and 749 mm Hg) produced by the complete decomposition of…

A: The Balanced Equation:Temperature = 29 oC and Pressure = 749 mm Hg Complete decompostion of 1.36 Kg…

Q: The atmosphere contains about 5.2×10^15 t of air. What mass in metric tons of carbon dioxide is in…

A:

Q: A cylinder of volume 27.0 L is filled with 25.1 g of jobstium gas (MM = 72.21 g - mol-1)from the…

A: Given the volume of cylinder i.e. gas =27.0 Lnumber of moles of gas =0.348 moltemperature =326 Kwe…

Q: A Haber process reactor contains 25.0% nitrogen and 75.0% hydrogen for the synthesis of ammonia.…

A:

Q: A mixture of CO2 and Kr weighs 37.6 g and exerts a pressure of 0.855 atm in its container. Since Kr…

A:

Q: Which substance is injected in gas fuel to remove SO3 gas M9SO4.7H20 ; Mgo Mg

A: The substance which is injected in gas fuel to remove SO3 gas is

Q: mass

A:

Q: A 1,365.8 mL aqueous solution of 407.9 mM Na2S is combined with 100.0 mL of an aqueous HCl solution…

A: Given , Na2S reacts with HCI

Q: Consider the reaction: 2 NiO(s) → 2 Ni(s) + O2(g). If oxygen is collected over water at 40.0oC and a…

A:

Q: 1. A student following the procedure described in this module collected the following data: mass…

A: According to Q &amp; A guidelines of Bartleby, we are supposed to answer only the first 3 sub-parts…

Q: A 0.477 mol sample of O gas has a volume of 12.8 L at a certain temperature and pressure. If all…

A: NOTE : In the reaction, the subscripts are missing. Hence I'm considering correct reaction. The…

Q: 11. In the early study of air composition, Ramsey in 1894 separated water vapor, nitrogen, oxygen…

A:

Q: 2H3PO4(s) --> 3 H2(g) + 2 P(s) + 4 O2(g) Using the reaction above, show step by step how many liters…

A: Here we are required to find the volume of oxygen gas liberated when 0.7156 g of phosphoric acid is…

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

A: 1. The decomposition of sodium azide will be as :-  2 NaN3(s) -----&gt; 2Na(s) + 3 N2(g)  2. Mass of…

Q: 10. A piece of sodium metal reacts completely with water as shown in the following reaction: 2 Na…

A: Given reaction is :  2Na (s) + 2H2O (l) ----------&gt; 2NaOH (aq) + H2 (g)  Temperature = T = 25 0C…

Q: 2.00 mol of NOBr dissociates 9.4 % in a 1.0 L vessel.  Calculate Kc.               2NOBr (g)  ↔…

A: Given -&gt; Mole of NOBr = 2.00 mole  Volume= 1.0 L  Percentage of dissociation= 9.4%

Q: How many grams of water will be lost when 8.000 g of YBr3 .9H2O is heated?

A: The question is based on the concept of stoichiometry of reaction. first we write the balance…

Q: 7.00 L of water vapor at 50.2 °C and 0.121 atm reacts with excess iron, how many grams of iron(III)…

A: Volume of H2O = 7.00 L  Temperature = 50.2°C  Pressure = 0.121 atm

Q: A 6.53 g sample of mixture of magnesium carbonate and calcium carbonate is treated with excess…

A: (a) The balanced chemical equation for the reaction of magnesium carbonate with HCl is,MgCO3(s) +…

Q: assume all reactions involving gases proceed at STP:  2 Li + 2 H2O  2 LiOH +H2.    If 4.4247 moles…

A: Given reaction is  2 Li + 2 H2O ----&gt;  2 LiOH +H2  Given: moles of Li reacted= 4.4247 moles

Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.