Data Table 1: Experiment Data Unknown Liquid: Trial 1 75.25 g 75.47 g 0.22 g Mass of empty flask (g) Mass of flask and condensed vapor after cooling (g) Mass of condensed vapor (g) Boiling water bath temperature, C Boiling water bath temperature, K Barometric pressure, inches Hg Barometric pressuer, atmospheres Volume of flask, mL Volume of flask, L Molar Mass of unknown Percent Error (%) Average for unknown molar mass Identity of unknown liquid 104°C 377.15 K 30.31 Hg 1.01 atm 148 mL 0.148 L Unknown Liquid: Trial 2 75.24 g 75.52 g .28 104°C 377.15 K 30.31 Hg 1.01 atm 148 mL 0.148 L

Q: Part A A salt crystal has a mass of 0.16 mg . How many NaCl formula units does it contain? Express…

A: Mass of NaCl = 0.16mg or 0.00016g Molar mass of NaCl = 23 + 35.5    = 58.5g/mol

Q: Find the molar mass of barium hydroxide.

A: Molar mass of a compound is the sum of total masses of all the atoms present in a compound. It is…

Q: Example 14: A sample of a compound of N and O contains 1.52 g of N and 3.47g of O. The molar mass of…

A:

Q: What is the molar mass of magnesium (Mg)? A)24.305 B)54.9380 C)48.610 D)35.45 E)22.99

A: Given      Element  = Magnesium  Molar mass = ?

Q: A mystery compound has a molar mass of 28.1 g/mol. How many moles is 98.4 g? Do not put any units in…

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Q: What is the mass of oxygen in 1 g of glutamine

A: Structure of glutamine is shown in image. It is a basic amino acid.  It's molecular weight is 146.14…

Q: Chemistry Vocabulary WORD WALL percent composition the percent, BY MASS, of all elements in a…

A:

Q: What is the molar mass and chemical formula of pure acetone?

A: The structural formula of pure acetone is shown below:

Q: Esterase is an enzyme that catalyzes the hydrolysis of esters. It hydrolyzes esters of L-amino acids…

A: Amino acid esters refer to those derivatives of amino acids in which the carboxylic acid group is…

Q: how many molecules are in 2.9 mol of c7h5n3o6

A: Given :- number of moles of C7H5N3O6 = 2.9 mol  To calculate :- number of molecules  1 mol = 6.022 ×…

Q: Calculate the molar mass of a compound if 0.400 mole of it has a mass of 308.0 g.

A: Given :- no.of moles of compound = 0.400 mol  Mass of compound = 308.0 g  To calculate :-  Molar…

Q: How many moles are in of 52 grams of NH3? (Hint: 1 molecule of NH3 has a mass of 17 amu) * 0.32 mol…

A:

Q: how many formula units in 7.69 grams of MgO

A: The formula unit is used to define the empirical formula. So we are basically asked to find how many…

Q: QUESTION 1 Select all answer choices that would result in units of moles. ORT PV PV RT mass + molar…

A: There are many formula to calculate mole . Some of them are 1) PV = nRT Where , P = pressure of gas…

Q: The chemical formula for diethyl sulfoxide is: (CH,CH,), SO Calculate the molar mass of diethyl…

A:

Q: How many moles are contained in 251 grams of Fe2O3? First determine the molar mass of Fe2O3. Can…

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Q: What’s mass of 6.75 moles of calcium nitrate?

A: The relationship between moles and mass of the substance is given by,

Q: how many moles of Kr are contained in 398 mg Kr?

A:

Q: What number of moles of X is needed to obtain 83.06 grams? (Assume that the molar mass of X is 66.55…

A: Given : mass of X = 83.06 g             Molar mass of X = 66.55 g / mol Required: no. of moles of X…

Q: Where does the amount 299.22 g/mol from?

A: 299.22 g/mol is the molar mass of compound Pb(NO2)2 .  This is used to calculate moles from mass.

Q: What is the molar mass of magnesium phosphate. **Be sure to select answer with the correct units!!…

A: Molar mass is the sum total of masses of atom each element in a molecule. It is the mass of 1 mol of…

Q: 3. Convert 0.36 moles Ba to g of Ba

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Q: How many moles of K₂SO4 are in 25.0 g of K₂SO4?

A: To calculate the number of moles of a substance, you can use the formula:        -------1

Q: Determine the number of moles of HH in each sample.   4.70 mol H2O to mol

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Calculate number of moles of a substance having 341gram mass and molar mass 568 gram/ mole

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Q: determine the number of atoms in 20 g of Berilium?

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Q: Calculate how many moles in 75.57 g of KBr 0.64 8993 1.575 0.6350 none of the above

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Q: How many molecules are there in 50.3 g of water?

A:

Q: Examine the pie graph below. What is the molar mass of compound X? Mass Contributions to 3.0 mol of…

A: In the given pie chart: The total mass of the various elements in the compound X must be calculated…

Q: round molar masses to two digits to the right of the decimal point when possible.

A: As given molar mass of a compound is calculated by  adding up the atomic molar masses of all atoms…

Q: Calculate how many moles are in 17.0 grams of H2O2? O 50.00 mol 0.500 mol 5.000 mol 0.599 mol O None…

A: