Combustion of a 0.2036 g sample produced 132.9 mL of CO2 at 25°C and 1.00 atm. and 0.122 g of water. Sample 2: 0.2500 g of glycine is treated in such a way that all the nitrogen atoms are converted to N2 gas. The volume of the nitrogen gas collected was 40.8 mL at 25°C and 1.00 atm. Determine: 1.        The percentages of carbon and hydrogen in glycine. 2.       The percentage of nitrogen in glycine. 3.       The percentage of oxygen in glycine. 4.       The empirical formula of glycine.

Q: Propenoic acid, C3H4O2C3H4O2, is a reactive organic liquid that is used in the manufacturing of…

A: Given: Mass of sample = 0.379 g. Mass of CO2 = 0.339 g. Mass of H2O = 0.237 g. Molar mass of CO2 =…

Q: Take a 2.85 L solution containing 1.94 mol L-1 hydrochloric acid (HCl) What is the amount of sodium…

A: The answer is as follows:

Q: A waste sample contains acetic acid (CH3COOH) at 100 mg/L and ammonia (NH3) at 50 mg/L as N.…

A:

Q: A student observes crystals at the bottom of a flask that contains a solution of LiBr in water.…

A: Interpretation: We have to check whether crystals will be forming or not when LiBr is taken in…

Q: (Q68) What mass (in grams) of ethylene glycol (C2H6O2) must be added to 1,296 grams of water to…

A: The solution is made up of solute and solvent. The solute is present in a small amount and the…

Q: A 1.00 L sample of cooking gas taken from a cylinder was collected. Its mass, measured at 27.0° C…

A:

Q: A sample contains 18.0 g N2 (MW = 28.02 g/mol), 50.5 g He (MW = 4.00 g/mol), and 34.6 g CO2 (MW =…

A:

Q: Select the one statement below that is TRUE.

A: The process of osmosis can be properly explained by a U-tube model. If a U-tube is divided into two…

Q: Calculate the moles of phenol from a solution that contains 153.2g of phenol (C6H5OH) and 255.4 g of…

A: Mass  of Phenol = 153.2 g Molar Mass of phenol = 94.11 g mol-1

Q: At 25.0 °C the Henry's Law constant for carbon dioxide (CO,) gas in water is 0.031 M/atm. Calculate…

A:

Q: Given the following mixture of two compounds 25.00 mL of X (MW =82.00 g/mol)(density 1.013 g/mL) and…

A: Mole fraction of a component in a solution is the ratio of moles of that component and total moles.…

Q: 72 g of CaCO3 is treated with 0.500 L of a 1.00M solution of HCl. What volume of CO2 gas, measured…

A:

Q: 3 atm of SO2 (g) and 3 atm of CO2 are present in different sealed containers with 1 L of water in…

A: Option d) is the correct choice.  Because solubility of gases are inversely proportional  or…

Q: Fertilizer calcium cyanamide reacts with water forming calcium carbonate and releasing ammonia gas…

A:

Q: A 5.6-mL sample of CO₂ gas is enclosed in a gas-tight syringe at 23 °C. If the syringe is immersed…

A: Charle's Law states that volume of a gas is directly proportional to the absolute temperature at…

Q: Wine goes bad soon after opening because the ethanol  CH3CH2OH in it reacts with oxygen gas  O2…

A: Consider the reaction fr the given condition is as follows; Reaction:        CH3CH2OH     +     O2…

Q: A certain gas is present in a 12.0 L cylinder at 4.0 atm pressure. If the pressure kr, the final…

A:

Q: You may want to reference (Pages 349 - 353) Section 11.9 while completing this problem. When Zn…

A:

Q: Using the ideal gas law, what is the volume in L of 3.59 g CO2 of gas at 2.09 atm and 291 K?

A:

Q: What is the value of Keq for the reaction NO(g)  1/3 NO2(g) + 1/3 N2O(g)? Keq =  .

A:

Q: Given the following mixture of two compounds 45.00 g of X (MW =78.00 g/mol)(density 1.128 g/mL) and…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: A chemist vaporizes a volatile hydrocarbon (carbon and hydrogen) liquid compound to gas • and…

A:

Q: 1.How many moles of butane (C4H10(g)) were combusted in the presence of excess oxygen gas if 55.8 L…

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

Q: Dr. V. is making spaghetti for dinner. He places 4.01kg of water in a pan and brings it to a boil.…

A: Given, Pressure = 1atm Kb = 0.52 oC /m Boiling point of pure water = 100oC Mass of solvent = 4.01kg…

Q: Calculate the Molar mass of a volatile liquid (g/mol) from the following data:- Mass of dry flask,…

A: Mass of dry flask = 142.722g Mass of vapor = 143.801 Volume = 1.127 liter Temperature of degree…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.