O2 -N2 H2O Не H, 5 x 102 10 x 10² 15 x 102 20 × 10² 25 x 102 30 x 102 35 x 10² Molecular speed (m/s) A Figure 10.13 The effect of molar mass on molecular speed at 25 °C. Fraction of molecules

Q: How many grams of NaF contain this much 2.17x10^11g of flouride?

A: Amount of fluoride  (F- ) = 2.17 × 1011 g  Molar mass of NaF = 41.988 g/mol.  Molar mass or…

Q: A 0.182 mol sample of 0, gas is contained in a 7.00 L flask at room temperature and pressure. What…

A: Given, At room temperature and pressure Moles of sample of oxygen (O2) = 0.182 mol Volume of the…

Q: It is estimated that we breathe around 5.0 x 1021 molecules of 0, in a single breath. What mass of…

A: Given: Molecules of O2 in a single breath = 5.0 × 1021. Molar mass of O2 = 32 g/mol

Q: Calculate the number of Molecules of Water that were created during the reaction of baking soda and…

A: Baking soda: Na2CO3 Vinegar: CH3COOH

Q: How many helium atoms in 535kg of helium

A: A question based on atomic structure that is to be accomplished.

Q: How many helium atoms are in a helium blimp containing495 kg of helium?

A: The moles of a substance for a given mass is given by, number of moles=given massmolar mass The…

Q: What is the total number of NO2 molecules in 0.25 mole of NO2 gas

A: Given  Number of mole of NO2  = 0.25 mole According to Avogadro's  1 mole of any substance contains…

Q: convert 12.5056g of CuSO4 to moles

A: Moles can be calculated as the amount of solute (in grams) divided by molecular weight. If solute’s…

Q: determine the number of moles in 32 grams of oxygen gas

A: Data given: Mass of oxygen gas = 32 grams

Q: Which sample contains the smaller number of atoms ?

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: mass, in

A:

Q: QUESTION 2 How many moles of gas are in each flask? (Hint 1 atm =760mmHg)? OA0.15 moles O B. 107.7…

A: Given,  Volume of gas = 3.0 L Temperature = 25°C  = 25+273 = 298 K Pressure = 878 mm Hg  Conversion…

Q: What is the volume of 9.30 moles of SiH,?

A: Given, Moles of SiH4 = 9.30 moles

Q: Calculate the mass percent of hydrogen in water and the mass percent ofoxygen in water.

A: The mass of one mole of water is 18g. In the mass of water, the mass of hydrogen is 2 grams and the…

Q: How many moles of O^2 are in13.5kg sample?

A: One oxygen atom have molar mass of 16 gram.  O2 have molecular weight 32 gram.

Q: How many moles are in 5.5 liters of argon?

A: Given, Volume of Argon=5.5 liters

Q: How many molecules are in a 7.5L sample of H2 @ STP?  Round to 2 decimal places.

A:

Q: How many moles of oxygen gas are present if there are 4.35 x 1025 atoms of oxygen in the sample?

A: answer = 36.11 moles of oxygen gas.

Q: How many moles of H2 gas

A:

Q: How many moles of CF4 are there in 171g of CF4

A: No. Of moles = given mass / molar mass  Given mass is 171g  Molar mass is calculated in 2 step.

Q: Consider Chemical Reaction 10.1: Mg(s) + 2HCI(aq) → MgCl2(aq) + H2(g) Chemical Reaction 10.1 For…

A: When a gas is collected over water , some water vapors are also present along with the gas. The…

Q: Potassium chlorate is the prime ingredient in most Chinese fireworks.  If I have 25 grams of…

A: Balance chemical reaction of potassium chlorate  2KClO3  ------------> 2KCl +  3O2  molar mass of…

Q: Which of the following shows an accurate representation of a sample of gas containing hydrogen and…

A: We are given a sample of gas containing both hydrogen gas and oxygen gas. Also we are given 4…

Q: Can you arange the following in order from least to most number of moles  6 x 1023 molecules of CO2…

A:

Q: Amadeus Avogadro was the first to state that equal volumes of all gases at the same temperature and…

A: Interpretation: We have to tell that how given statement is evolved from mole theory of chemistry.

Q: Determine the quantity of molecules in 0.150 moles of H₂O.

A: Moles of H2O=0.150molNumber of molecules=?Now we will calculate the number of molecules in the next…

Q: Calculate the number of moles in and the mass of an 6.24 L sample ammonia, NH3, measured at standard…

A: Here, we have to calculate the number of moles in and the mass of a 6.24 L sample ammonia, NH3,…

Q: How many molecules are in 2.52g of butane (C4H8) gas

A: Number of moles of any substance can be determined by dividing the given mass of that substance by…

Q: culate how many oxygenatoms

A: Mole concept proposed by Avogadro proposed relations to relate the number of moles with mass, molar…

Q: How many moles of calcium hydroxide are present in a 1.70 x 1025 formula unit sample?

A: In chemistry, a mole is a unit of measurement for the amount of a substance. It is defined as the…

Q: What mass of hydrogen gas H2 is present if there are 5.00E23 atoms of hydrogen?

A: Given: Atoms of hydrogen are 5.00×1023 To find: Mass of hydrogen gas

Q: Three identical 1-L flasks filled with H​2,​ O​2,​ and Ne gas, respectively, at STP are placed in…

A: As the all gases are at same temperature, pressure and in 1 L container. Using ideal gas equation…

Q: Determine the number of K atom and the mass of K found in 0.200 mol of KOH.

A: Since each molecule of KOH has 1 K atom present in it Hence moles of K = moles of KOH = 0.2 Hence…

Q: how many molecules of N2  in 57L N2 gas

A: Assuming the pressure of the atmosphere is = 1atm  and temperature = 300K  Now using PV = nRT…

Q: Determine the formula weight of BaSO₄. Provide an answer to two decimal places.

A:

Q: Ideal Gas Law PV = nRT L. atm mole - K)(313 K) atm)(2.3 L) = n(0.0821 313 K 2.3 L 22 Pressure 1.5…

A: The question is based on the concept of ideal gas. we make use of ideal gas equation and calculate…

Q: How many moles of argon, Ar, are in 1.55 x 10 Ar atoms? 1.55 x 10 Ar atoms= + TOOLS

A:

Q: How many moles of oxygen are contained in 1.33 moles of CaCO3?

A: 1 molecule of CaCO3 has 3 atoms of oxygen. Moles of oxygen atoms in 1.33 moles of CaCO3 = 1.33 x 3 =…

Q: What is the volume of V of a sample of 3.90 mol of copper?

A:

Q: be represented 1. The decomposition of PCBS can by the equation 2 C1₂ Hy Clb + 23 O₂ + 2H₂O → 24 CO₂…

A: 2 C12 H4Cl6 + 23 O2 + 2 H2O  ==> 24 CO2 + 12 HCl Given Mass of HCl = 76.5 g   Molar mass of HCl =…

Q: how many grams of nitrogen are required to form 545g of ammonia

A:

Q: 3.45x10^24 atoms of CO2 to mol Round answer to 2 decimal places.

A: Given -: atoms of CO2 = 3.45×1024  Converts it moles of CO2