Will the molecular weight of the sample be more or less than the correct molecular weight if the sample was not completely evaporated in an experiment to determine the partial weight of volatile liquids

Q: How many molecules of water are ionized in comparisn to the total number of molecules liter of…

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Q: 2. Which one of the following densities is expected to belong to 17% NaCl? ...:) a) 1.5489 g/ml b)…

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Q: What is the key for getting no leftovers(leftover molecules)?

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Q: How many formula units of CaCO3 are contained in 350. g CaCO3?

A: The given data contains, mass of CaCO3 = 350 g

Q: Sample When 3.596 grams of a hydrocarbon, C,Hy, were burned in a combustion analysis apparatus,…

A: CxHy + O2(excess) -----> x CO2 + y/2 H2O Where : x = number of carbon and y = number of Hydrogen…

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: (c) Calculate the mole of acetic anhydride used in this experiment: I mol 6.48 102.09 g g X = 0.0635…

A: All your calculation for #(a) to #(d) are correct.  Since salicylic acid is the limiting reactant,…

Q: formula:

A: Applying concept of synthesis of nylon 66.

Q: How many moles of HCI are in a sample of HCI with a mass of 3.00g? 3.46 0.0823 0.0621 0.0549

A: Moles=GMMM Here, GM is given mass MM is molar mass Given mass is 3g  Molar mass is 36.5 Use this…

Q: Calculate how many moles of CaCl2•2H2O are present in 1.50 g of CaCl2•2H2O and then calculate how…

A: Initial mass of calcium chloride di-hydrate = 1.50 g Molar mass of calcium chloride di-hydrate =…

Q: 1. What is the molecular formula for the compound that has a molar mass of 180.2 g/mol and the…

A: You have asked multiple type questions, we will solve only first  questions for you. If you want any…

Q: Determine the number of formula units in 3.15 mol CaBr2

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Q: If we are expecting about 48 g of citric acid per L of lemon juice, how many moles of citric acid…

A: Given that we expect 48 g of citric acid per L of lemon juice. We have to determine the moles of…

Q: A sample of hydrated aluminum sulfate wing 2.954 g was given to a student to be used in the water of…

A: Assuming the formula of hydrated aluminum sulfate is Al2(SO4)3 . yH2O where y = number of water…

Q: What's the theoretical percent water in tin(IV) chloride hexahydrate ?

A: The percent water by mass can be calculated by multiplying the ratio of water mass to the total mass…

Q: Analysis of skunk spray yields a molecule with44.77% C, 7.46% H and 47.76% S. What is the…

A: Given: % of C= 44.77 % % of H= 7.46 % % of S= 47.76 % To find: Chemical formula of the compound

Q: A major component of gasoline is octane (C,H18). When liquid octane is burned in air it reacts with…

A: Given :- number of moles of water produced = 0.090 mol  To calculate  :- number of moles of octane…

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

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

Q: What is the number of moles in Serotonin if the mass in grams is 21.29

A: Given, mass of serotonin= 21.29 g  molar mass of serotonin =176.215 g mol-1  moles of serotonin = ?

Q: See attached document and answer the following question: What is the formula for finding the molar…

A: Molar mass can be calculated by first we have find out the molecular formula after that identifying…

Q: -. Drawing activity. Draw a molecular structure of a section of a snowflake. Use at least 25…

A: Water, hydrogen mano-oxide is a polar compound. It is formed by one oxygen and two hydrogen atoms.…

Q: What percent of water is in the  compound barium chloride dihydrate?

A: To Calculate: Percent of water is in the  compound barium chloride dihydrate.

Q: An organic compound is made up of 67.7% carbon, 11.1% hydrogen and 22.2% oxygen. Circle the…

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Q: What is the mole-to-mole ratio between aluminum ion and potassium aluminum sulfate dodecahydrate?…

A: We need to determine moles of Al present in 1 mol of potassium aluminum sulfate dodecahydrate.

Q: Question：use the mass% ethanol to calculate how much ethanol is in each fraction. Fraction 1 ：Totol…

A: Fraction 1:  Given that mass of the fraction is 15.87 grams mass percent of ethanol in the fraction…

Q: Table 1. Reaction of steel wool in presence of oxygen. Complete the following table. Remember…

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Q: during an experiment to determine avogadro's number 4 trials were recorded. what is the average…

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Q: To determine the formula of a new substance, one of the first steps is to find the __________. a.…

A: Percent composition of a substance can be defined as the ratio of amount of each element to the…

Q: 21) Vanadium has two naturally occurring isotopes, 50V with an atomic mass of 49.9472 amu and 51v…

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Q: What's the theoretical percentage water in Chromium (III) chloride hexahydrate?

A: The theoretical percentage of water in hydrated salts are calculated as:

Q: How many sulfite ions are contained in 99.6 mg of sodium sulfite?

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: the limiting reagent and its amount in the active ingredient Potassium Iodide

A: The chemical reactions occur according to the stoichiometry of the various compounds present in the…

Q: how many water molecules can a teaspoon hold?

A: Volume of 1 teaspoon = 4.93 mL Volume of teaspoon = volume of water = 4.93 mL = 4.93×10-3 L

Q: How many molecules are in 81.3 Liters of Acetic Acid?

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Q: Question 4: What is mixed melting point, and how can it be used to identify a compound. Provide two…

A: In this experiment first we mix two compound in which one is known and another is unknown after that…

Q: 48.1g of aluminum hydroxide to molecules of aluminum hydroxide

A: Consider the given information is as follows; Mass of aluminum hydroxide = 48.1 g…

Q: What is the excess reagent and its amount in grams in the active ingredient Potassium Iodid

A: Chemical reactions are those reactions which undergo any chemical change. Chemical reaction is…

Q: Which of the major physical laws of chemistry are being tested when you calculate the percent…

A: Percent recovery is calculated by the following formula % recovery = (amount recovered/initial…

Q: 2. A 1.235 g sample of unknown strontium chloride hydrate was found to have 0.511 g of water…

A: Given : Mass of hydrate compound = 1.235 g And mass of water present = 0.511 g

Q: QUESTION 4 4. The following structure IS SOLUBLE in water.

A: The solubility of any compound in water is depends upon the hydrogen bonding with water. The…

Q: 2.708 gram sample of an organic compound containing C, H and O is analyzed d 6.157 grams of CO2 and…

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Q: What is the molar mass for calcium chloride dihydrate? What is the molar mass of calcium oxalate…

A: We have to calculate the molar mass of the given compounds. The given compounds are Calcium…

Q: Acetone is a well-known industrial solvent with a molecular formula of: C3H60. Calculate for its…

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Q: Suppose a student places a beaker on his balance and does not tare it. Then, he adds three…

A: Here you should understand that if you have nothing in the beaker it is the empty weight of beaker.

Q: Label the diagram to correctly convert 16.8L H2 to mole of H2 : 16.8 L H2 : 22.4 L H2 : 1 mol H2

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Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.