Unknown Sample Number_ 13 Mass of sample, g Final buret reading, mL Initial buret Trial 1 0.244 Molar Mass of an Unknown Acid Data Sheet 44.08 40.79 Trial 2 0.2427 47.30 26.4 Trial 3 0.2245 40.40 28.9 Trial 4 0.2418 44.20 41.2 Trial 5 0.2341 44.00 40.9

Q: 6. How many grams of CoSO, are there in 100.0 g of hydrate? How many moles? What per- centage of the…

A:

Q: QUESTION 7 One mole of particles of any substance contains how many particles? 3 x 10-10 particles 3…

A: 7) The value of the mole is equal to the number of atoms in exactly 12 grams of pure carbon-12.

Q: nit symbol if necessary, and round it to 3 signific

A: Mass of compound = 70.0 g Molar mass of compound = 143 g/mol Moles = mass/MM   = 70.0/143 = 0.490…

Q: Which of the following equations best represents the reaction shown in the diagram? Select the…

A: The given image contains 6A, 4B in reactant side and 4C,2D in product side.Given options…

Q: The mass of 4.375 x 1016 molecules of compound with the molecular formula C3H9N is ______ g. Report…

A:

Q: Using the figure, below, what is the initial volume of the buret? 30 31 A. 31.7 mL O B. 30.315 mL C.…

A: Given that : We have to measure the initial volume of the following buret :

Q: Experiment 11: Decomposing Baking Soda 7. A student collects the following data when decomposing an…

A: The decomposition reaction involves the breaking of a larger molecule into smaller molecular units.…

Q: Nitrogen reacts with hydrogen to generate ammonia according to the following reaction: 3 H2 + N2 → 2…

A: The balanced equation for the formation of NH3 is   3 H2 + N2 ---------> 2 NH3 Mass of NH3 = 8.39…

Q: Run 2: Initial grams of NaHCO3 %3D

A: The balanced chemical equation has the number of atoms of the reactants becomes equal to the atom…

Q: If you do not heat your crucible strongly enough to remove all volatile impurities when you heat the…

A: The loss of water happening during the inital heating or during the second heating is not relevant

Q: If at the beginning of the experiment, you accidentally recorded the mass of your empty beaker to…

A: It is given that mass of empty beaker is recorded higher than the actual mass of beaker.

Q: Another student performed the same percent composition of a hydrate experiment, but kens the…

A: 3a. The experiment was the determination of percent composition of hydrate.

Q: 3. Find the mass (m) of the following samples in two decimal places. a) How many grams of sodium…

A:

Q: Patty followed the experimental procedure for Experiment 4 Part 1, and collected the following data.…

A: We will Use this data to calculate the mass of gas produced in Patty’s reaction.    A Mass of…

Q: 3. Imagine you performed this experiment at your own benchtop. You work hard to collect the data in…

A: Scientific measurements include the process in which various numbers are assigned to represent real…

Q: 16 the m, you iave 30 minutes to upload your work on Canvas. Question 14 A student determines the…

A:

Q: Тemperature (K) Volume (L) Pressure Sample Substance (atm) A. 600 2. B Kr 273 3. C. Xe 273 Which 2…

A: We are give the data in the table, We know that, PV=nRT n=PV/RT

Q: What is the mass in grams of 4.57 × 10²⁵ molecules of Cl₂? I get the write and but the wrong number…

A: Mole concept: The number of molecules in one mole of chlorine is equal to the Avogadro number. The…

Q: A 4.64 g sample of a laboratory solution contains 1.47 g of acid. What is the concentration of the…

A: The mass of the sample is = 4.64 g The mass of acid in the sample is = 1.47 g The mass percent of…

Q: Jse the periodic table to calculate the GFW (molar mass) of aluminum sulfate, Al2(S04)3 to 5…

A: Percent  composition is used to determine the mass percentage of each element present in the…

Q: Part D-Yield Calculations Which of the following errors could cause your percent yield to be falsely…

A: In the context of experimental chemistry and percent yield calculations, the question addresses the…

Q: #1 #2 #3 Mass of flask + oxalic acid 64. 987 68.455 64.074 Mass of flask 64.681 68.152 63. Fole Mass…

A: The number of moles of solute to the volume of solution in liter is known as molarity.

Q: Percent yield = the Reaction A NaHCO3(s) -> _NaOH(s) + CO2(g) Run 1: Initial grams of NaHCO3 %3D

A: Run 1Mass of products = 84.380 - 81.661 = 2.719 gRun 2Mass of products = 32.267 - 30.742 = 1.525 g…

Q: Calculate the number of oxygen atoms in a 100.0 g sample of scheelite (Ca WO,). Be sure your answer…

A: Number of moles of a compound is equal to the mass of substance divided by its molar mass.

Q: The most common source of copper (Cu) is the mineral chalcopyrite (CuFeS2). How many kilograms of…

A:

Q: A chemist determines by measurements that 0.0400 moles of iodine solid participate in a chemical…

A: Given, moles of solid iodine (I2) = 0.0400 mol mass of solid iodine (I2) = ? Note:  molar mass of…

Q: student performs Experiment 7 using copper wire as the initial copper source and obtains the…

A: Given mass of dry beaker is 120.4265 g  Given mass of dry beaker + copper wire is 122.4715 g  After…

Q: A sample of ammonium carbonate (MM = 96.09 g/mol) was found to contain 7.6 x 1023 AMU of N. How many…

A:

Q: Mass of Crucible 42.424 g Mass of Crucible + Lid 47.6894 g Mass of Crucible + Lid + Ba 49.7842…

A: Mass of crucible + lid = 47.6894 g Mass of crucible + lid + barium = 49.7842 g Mass of barium =…

Q: Fill in the Blanks Chemical Price/kg (in dollars) NaOH 21.17 CaCl2 41.28 КОН 31.38 CuSO4 93.32…

A: Solution is provided in the image below.

Q: Determine the mass of chlorine in the original sample as the difference in mass between the…

A:

Q: Melissa says the formula for hydrochloric acid is HCI. Wyatt says the formula is H₂C1. Who is…

A: Given Hydrochloric acid

Q: H₂O SO₂ 64.058 Ru(CO) 5 241.12 SF6 146.05 88.004 207.29 CF4 XeF4 SF6 S Molar Mass 18.015 F Mass (g)…

A: Given: The number of particles of S is 1.65×1022. The number of particles of SF6 is 1.65×1022.

Q: Select all quantities whose values are exact (contains infinite number of significant figures).…

A: A number that showing perfect exactly value  , it contain infinite number of significant figure.

Q: what is the empirical formula for unkown?

A: The question is based on mole concept. we have been given moles of each of the element. we need to…

Q: Use the data below to determine the mass ratio of iron to oxygen for compound 1. Compound 1 2 Mass…

A: Given: In compound 1, Mass of Fe = 15.55 g and mass of O = 4.45 g

Q: In an experiment to determine the molar mass of an unknown solid acid, a student calculated the…

A: The measurement is more accurate we can say when the actual value is very close to the average or…

Q: If you did not properly dry the beaker before adding the sample, how would this influence the final…

A: It is given beaker is not properly dry before adding the sample.

Q: How many formula units are in 30.912 g of potassium permanganate? Give answer to the correct number…

A: A numerical problem based on formula unit, which is to be accomplished.

Q: PERCENT WATER IN A HYDRATE DATA/CALCULATION SHEET NAME 1.. crucible, cover, BaCl2 2H2O _\8, a0G! g…

A:

Q: Please show all work. 1. Find the mass of 4.52 x 10^23 particles of each of the following: N2…

A: Hello. Since the question contains multiple parts, the first three parts are solved. In case the…

Q: Use the sample experimental data to calculate the mass of residue (BaCl2)  Mass of pan 15.110 g…

A:

Q: 3.7 x 1021 water molecules has a mass of _____ grams. Keep four decimal places A drop of water has…

A: Consider some important relations is as follows; 1 mol = 6.022×1023 molecules…

Q: MISSED THIS? Watch IWE: The Mole Concept-Converting Between Mass and Number of Molecules ; Read…

A: We will require the molar mass of the substance to calculate the mass of a substance from moles. As…

Q: the percent mass of BaCl2*2H2O from the original mixture. Find the percent  mass

A:

Environmental Pollution

Environmental pollution occurs due to some unwanted alteration in the surroundings which results in unfavorable effects on all organisms of that surrounding.