mass of Mg

Q: Oxygen  mask for producing O2  in emergency situations contain potassium superoxide,  KO2 . It…

A:

Q: A 0.181 g piece of solid aluminum reacts with gaseous oxygen from the atmosphere to form solid…

A: The reaction of aluminum with gaseous oxygen can be expressed as,                        4 Al + 3 O2…

Q: If 26.2 grams of carbon (grapefruit) and 69.8 grams of oxygen combine to form carbon dioxide, how…

A: The reaction of Carbon and Oxygen to form carbon-di-oxide is--------------- C + O2 → CO2 So 1 mole…

Q: If 10.00 grams of CaCl2 and 12.45 grams of K2CO3 each completely react with one another, many total…

A: Chemical reaction:                                                CaCl2  +  K2CO3    →     CaCO3  +…

Q: how many grams of carbon dioxide will be made from 7.4x10 to the 23 power molecules of oxygen?…

A: First convert molecules into moles. 6.022 × 10²³ molecules = 1 mole of oxygen 1 molecules= 1÷6.022 ×…

Q: How many grams of oxygen are required to produce 46.2 g of water vapor? Express your answer with…

A:

Q: Hydrogen and oxygen are reacted and the water formed is collected at 25°C, where it has a density…

A: The reaction taking place can be written as  => H2 (g) + O2 (g) ---------> H2O (l)  Balancing…

Q: The density of liquid ethanol C2H5OH is 0.789 g/mL. If 505 grams of glucose decomposes, how many…

A: The decomposition reaction of glucose can be expressed as,                 C6H12O6 (s) -----> 2…

Q: Ethanol fuel mixtures have "E" numbers that indicate the percentage of ethanol in the mixture by…

A: Since, E10 is a mixture of 10% ethanol and 90% gasoline.

Q: Тemperature (K) Volume (L) Pressure Sample Substance (atm) A. 600 2. B Kr 273 3. C. Xe 273 Which 2…

A: We are give the data in the table, We know that, PV=nRT n=PV/RT

Q: 10.76 A sample of 3.00 g c 21 °C is transferred 2.35 g N2(g) originall to this same 10.0-L SO2(g) in…

A: To calculate the partial pressure of each gas, we can use the general law of ideal gas : PV = nRT…

Q: The burning of 4.13 g of carbon in oxygen produces 24.22 g of carbon dioxide as the only product.…

A:

Q: Solid ammonium chloride, NH4Cl,NH4Cl, is formed by the reaction of gaseous ammonia, NH3,NH3, and…

A: Given,Mass of NH3 = 5.84 gMass of HCl = 5.84 gCalculation for number of moles:

Q: What mass in grams of NaN3 is required to produce 50.2L of N2 gas (density = 1.25 g/L). According to…

A:

Q: 6. Calculate The scientist repeats the experiment, burning a new sample of steel wool until it is…

A:

Q: In a laboratory experiment, 5.0 g of aluminum metal is exposed to 23.2 g of chlorine gas which…

A: The limiting reagent in a chemical reaction is a reactant that is totally consumed when the chemical…

Q: 1. The density of vinegar is 1.05 g/mL. The molecular weight of acetic acid is 60.1 g/mol. Using…

A: To determine average percentage of acetic acid in Vinegar

Q: The average human fart contains .00643 g of methane gas. 1) Write and balance the reaction for the…

A: CH4+2O2→CO2+2H2OMass of CH4=0.00643g1mol of CH4=16gno. of moles of methane=0.0064316=0.00040.004…

Q: student performs Experiment 7 using copper wire as the initial copper source and obtains the…

A: Given mass of dry beaker is 120.4265 g  Given mass of dry beaker + copper wire is 122.4715 g  After…

Q: (4€) Carbon reacts with Oxygen to produce Carbon monoxide. If 6.2 grams of Carbon and 2-8grams of…

A: 4 . E) When Carbon reacts with Oxygen , it produces carbon monoxide.          The balanced chemical…

Q: A chemist has a 19.50g sample of drinking alcohol (ethyl alcohol). what is the volume ogf the…

A: The relationship between mass and volume is given below.

Q: For every one molecule of sodium azide that ignites, how many molecules of gas are formed?   2…

A: 2 NaN3(s)     ------------>  2 Na(s)     +    3 N2(g)

Q: The table below sbows elements present in the Sun. The Sun's composition is similar to other main…

A: The sun is made up of hydrogen and helium in the maximum amount. All the elements produced in the…

Q: Several students perform an esterification reaction to synthesize aspirin. The table below shows the…

A:

Q: If 20.0 g of magnesium reacts with excess hydrochloric acid, what mass of magnesium chloride is…

A: Given Mass of magnesium = 20 g Standard Molar mass of magnesium = 24.305 g/mol Molar mass of…

Q: An underground tank contains 600 kL of decane (C10H22). If the owner of the tank requires 2.52 ×…

A: Given: Volume of tank = 600kL Density = 1.21 g.ml-1 Molecules = 2.52 × 1029

Q: 4. A student weighs out 1.245 grams of potassium hydrogen phthalate (molar mass 204.2 grams 1 mole).…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: A student add 15g of baking soda to 10g of acetic acid in a beaker. A chemical reaction occurs and a…

A: Baking soda : NaHCO3 ACETIC ACID : CH3COOH

Q: (a) 2 Mg(s) + O2(g) → 2 MgO(s) kJ (b) 2 SO2(g) + 02(g) → 2 SO3(g) -139.9: kJ (c) 2 C,H2(g) + 5 02(g)…

A:

Q: A chemist adds 145.0 mL of a 0.00260 mol/L calcium sulfate (CaSO.) solution to a reaction flask.…

A: Given volume = 145 ml  Molarity  = 0.00260 mol/litre    Molarity = number of moles Volume in litre

Q: Using the mass of the empty beaker and the mass of the beaker + KOH, calculate the mass of KOH…

A: Number of moles = Mass in g/molar mass

Q: 47.9 grams of nitric acid are reacted with 39.3 grams of potassium sulfate. How much nitrate can be…

A: Consider the given information is as follows; Mass of nitric acid HNO3 = 47.9 g Mass of potassium…

Q: Magnesium will burn in air to form both Mg;N2 and MgO. What mass of each product would be found if…

A:

Q: 58.1 g of solid calcium carbonate is mixed with 51.6 g hydrochloric acid. How many grams of carbon…

A: The mass of calcium carbonate is 58.1 g. The mass of hydrochloric acid is 51.6 g.

Q: (a) A student has a 10.0g sample of CaBr2. Show the setup of the calculation to determine the number…

A: The number of the moles of any substance present in a sample is the ratio of the given mass of that…

Q: 450 g of H2O is decomposed to form H2 and O­2 gas. a. What is the mass (in g) of H2 gas produced?…

A: Decomposition of H2O 2 H2O → 2 H2 + O2   * Mass of H2O = 450 g * moles of H2O = Mass of H2O / Molar…

Q: Aqueous sulfurlc acid (H,SO will react with solld sodlum hydroxide (NaOH) to produce aqueous sodlum…

A: The balanced chemical equation can be written as follows: H2SO4 + 2 NaOH --> Na2SO4 + 2 H2O 1 mol…

Q: Potassium reacts with oxygen to form potassium oxide.  If 14.5g of potassium reacts completely with…

A:

Q: Hydrogen and oxygen are reacted and the water formed is collected at 25 C , where it has a density…

A: The balanced chemical reaction, 2H2 (g) + O2 (g)  →  2H2O (l) Given,  Mass of H2 taken = 36.8 g  And…

Q: A 13.0-g sample of X combines with a 34.0-g sample of Y to form the compound X Y 2 . What is the…

A: Law of Conservation of mass: According to the law of conservation of mass, mass can neither be…

Q: 2. Calcium carbonate, when heated strongly in an open test tube, decomposes to yield both the…

A: Given : Reactant = Calcium carbonate.                      Products = calcium oxide and carbon…

Q: Liquid heptane, C,H,6 , burns in oxygen gas to yield carbon dioxide and water. What mass of carbon…

A:

Q: Magnesium will burn in air to form both Mg3N2 and MgO. What mass of each product would be found if…

A: The mass of a compound is determined by the number of moles of compound and its molar mass. The…

Q: solid mercury (II) oxide decomposes when heated forming liquid mercury and oxygen gas as the only…

A: Often while calculating, there is a need to convert units from one system to another system. The…

Q: A student reacts 6.0 g solid sulfur and 5.0 g oxygen gas at 95% efficiency to produce sulfur…

A: Given reaction is                                         S8 (s)       +       12 O2 (g)…

Q: Aqueous sulfuric acıd (H, SO,) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: It is given that:Mass of sulfuric acid = 82 gMass of sodium hydroxide = 134 g

Q: If 45.98 g of sodium combines with an excess of chlorine gas to form 116.89 g of sodium chloride,…

A: Limiting reagent is the reagent which is consumed in the chemical reaction completely. It decides…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".