There are 5.00 mol KBr in a beaker. How many molecules of KBr are in the beaker?

Q: if 0.274 moles of a substance weigh 62.5 g, what is the molar mass of the substance in units of…

A: 1 mole = 6.022×1023 [ Avogadro's number ] The mass of one mole of molecules of a substance is called…

Q: molar mass of th

A:

Q: What is the mass in grams of 0.415 mmol POCl3?

A: Given: mmol of POCl3=0.415mmol

Q: how many moles are in 13.4 g CaS?

A:

Q: Calculate the number of moles of chlorine present in 100 g of chlorine gas.

A: We have to predict the moles of chlorine gas.

Q: How many molecules are in 68.8 moles of CO₂?

A: No. Of CO2 molecules= 4.14× 1025

Q: How many molecules are in 502.1 g of LIF?

A: Mass of LIF = 502.1 g Molecular weight = 25.939 g/mol Molecule= ?

Q: The number of molecules in a sample of NH3 weighing 8.50g?

A:

Q: The percent by mass of copper(I) in Cu,CO3 is %.

A:

Q: The empirical formula for trichloroisocyanuric acid, the active ingredient in many household…

A: Empirical formula : Simplest whole number ratio of a compound is called empirical formula…

Q: What is the molar mass of BaSO4?

A: BaSO4 is Barium sulfate  We can calculate its molar mass by adding the atomic weight of all atoms…

Q: How many moles of C atoms are present in 0.683 mol of Co molecules?

A: Molecular formula of Carbon Monoxide  is CO . And each CO  molecule contains 1 carbon atom. Thus,…

Q: If the empirical formula of a compound is SO3 and the molar mass of the molecular formula is 320…

A: Empirical formula = SO3 Molar mass = 320g/mol

Q: How many molecules are in 25.7 g of O2?

A: The number 6.022 × 1023 indicating the number of atoms or molecules in a mole of any substance is…

Q: How many molecules are in 55.3 moles of CO₂?

A: Given :-  Number of moles of CO2 = 55.3 mol  To be calculated :-  Number of CO2 molecules

Q: Elemental phosphorus occurs as tetratomic molecules, P4. What mass of chlorine gas is needed to…

A: The reaction of P4 and Cl2 is

Q: How many moles of ions are in 27.5 g of MgCI,?

A: A mole is 6.022×1023 which measures the amount of substance. The number of moles of a substance is…

Q: How many molecules of MgCl2 are there in 5 moles?

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: What mass of AgNO

A:

Q: Elemental phosphorus occurs as tetratomic molecules, P₄.What mass of chlorine gas is needed to react…

A: Given data, The weight of the phosphorus is 455 g. Then, we have to calculate the mass of chlorine.…

Q: What mass of CO2 (44 g/mol.) is produced?

A: Number of moles = mass/molar mass  So, mass = moles × molar mass

Q: Chlorophyll, the substance responsible for the green color of leaves, has one magnesium atom per…

A:

Q: What is the mass in g of 100 molecules of CH2O?

A:

Q: 4.61 mol H20 ΑΣΦ VH = mol

A: 1 mol H2O contains 2 moles of H.  1 mol NH3 contains 3 moles of H.

Q: How many grams of S are in 515 g of SO2?

A: The atomic mass which is denoted in grams indicates the gram atomic mass. The relationship between…

Q: A 100.00 g sample of the compound XCl3 is decomposed to produce 90.77 g of the element chlorine.…

A: The reaction taking place will be  2 XCl3 -----> X2 + 3 Cl2  Hence moles of Cl2 formed / moles of…

Q: Molar mass of nitrogen (N2) is 28 g/mol. If 3.2 x 1023 molecules of nitrogen is in a container, how…

A: Number of molecules in 1 mole = Na = 6.02 x 1023  Number of moles of nitrogen gas(n) = 3.2 x 1023/Na…

Q: What is the amount (moles) of pure substance in 10.7 g of aluminum? Assume the molar mass of…

A: Ratio of given mass of an element to the molar mass of the element is known as number of moles of…

Q: How many moles are in 25.3 grams of NaCl?

A: Given :- mass of NaCl = 25.3 g  To calculate :- number of moles of NaCl

Q: How many grams of carbon are in 402.1 g of carbon tetrachloride?

A:

Q: What quantity in moles of KBr are in 71.2 grams of KBr?

A: Molar mass of KBr is = (39.1 +79.9) = 119 g/mol

Q: What number of Zn atoms and what amount (moles) of Zn atoms are in 800.0 g of zinc?

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: The molar mass of carbon dioxide (CO2) is 44 g/mol. What is the mass of 6 moles of carbon dioxide?

A: Molar mass of a substance can be defined as the mass of 1 mole of the substance. It is expressed as…

Q: How many grams are in 1.0 moles of C6H10S?

A: 1 mole of any substance consits of grams equal to its molar or molecular mass.

Q: How many grams are in 2.67 moles of NaNO3?

A: To solve this problem we will use the molar mass of NaNO3  We will use the formula  Mass = number of…

Q: 0.274 moles of a substance weighs 62.5 g.  What is the molar mass of the substance?

A: No.of moles= mass(g)/molarmass(g/mol)  i.e  n = w/M  Where   n = 0.274 mol  w = 62.5 g  M = ?

Q: How many moles are in 1.29g of NaCl ?

A:

Q: What is the molar mass of C12H1802 in g/mole?

A: Answer = Molar Mass: 194.2722 g/mol  Explanation - Calculations:Formula: c12h18o2…

Q: What is the molar mass of SO2?

A: The molar mass of a compound or molecules is the sum of the masses of all the atoms present in it.…

Q: How many grams are in 2.3 x 1024 formula units of KNO3?

A: Welcome to bartleby!

Q: The empirical formula of an unknown compound is CH and the molar mass of compound is 78.11 g/mol.…

A:

Q: The mass in grams of 5.8 mol of dinitrogen tetroxide gas

A: Mass = mole × molar mass

Q: One mole of hydrogen peroxide, H2O2, would consist of how many molecules?

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: The empirical formula of a compound is C4H9. It's molecular mass is 114g/Mol. What is its molecular…

A: We have to predict the molecular formula.

Q: How many moles of Al(CN), are in 187 g of the compound? 187 g Al(CN); mol

A: Given mass of Al(CN)3 : 187 g

Q: The number of molecules present in  1.50 moles of CO2 is

A: Calculation of number of molecules: The number of moles of CO2 = 1.50 moles We know that; 1 mol of…

Q: How many molecules are in 2.73g of NaCl?

A: Given data contains, Mass of sodium chloride is 2.73 g. Molar mass of sodium chloride is 58.44…

Q: Question attached

A: Given: Mass of ethanol = 18.5g To find: The number of molecules present in 18.5 g of CH3CH2OH