9. Calculate the starting temperature of a 88.43 ml sample of methane at 29.66 in of Hg if the new volume is equal to 90.00 ml at STP. 10 A 450 I tank of chlorine is collected at STP. What will be the new pressure of the chlorine if the volume increases to 525 liters at a temperature of 15.6° C?

Q: Question 16 16. Calculate the mass% of N in (NH4)2CrO4. N=14.00 g/mole, H 1.008 g/mole, Cr-52.00…

A:

Q: How can I determine the empirical formula of each of the following compounds if a sample contains…

A: Interpretation: The empirical formula of each of the following compounds are to be determined. a.…

Q: Cra(50,), 313

A: The name of the given compound is Chromium (III) Sulfite Cr2(SO3)3 In order to find the Molar Mass…

Q: Empirical Formula MoleCular Formula H,Oz HCO2 H,C,O4 H,0 C6HBO6 C,H,O;

A: Empirical formula refers to the simplest whole number ratio of the number of atoms of the elements…

Q: Given the balanced equation: Zn + 2 HCI ---> ZnCl, + H, How many grams of hydrogen gas (H,) will be…

A: Zn(s) + 2HCl(aq) → ZnCl2, (aq) + H2 (g)  1 mole of Zn reacts with 2 moles of HCl to produce 1 mole…

Q: What is probably meant is 1 mol of nitrogen molecules

A: 1 mole of N2 means 6.023*10^23 molecules of N2

Q: number should be placed in front of CaSO4 to give the same total number of sulfate

A: The number should be placed in front of CaSO4 to give the same total number of sulfate ions on each…

Q: Choose the letters that apply: Suppose we have 2 substances (chloroform and aspirin), in computing…

A: Given :  Choose the letters that apply: Suppose we have 2 substances (chloroform and aspirin), in…

Q: How many formula units are in 35.4 g of NaCl? Calculate the mass of 2.50 mol of Fe(OH),. What is the…

A:

Q: The molar mass of adamantium (Ad) is 49.08 g/mol. Determine mass of 0.679 moles of Titanium (IV)…

A: Given :- molar mass of Ad = 49.08g/mol                No.of moles of TiAd4 = 0.679 mol  To calculate…

Q: The principal components in air are oxygen, nitrogen, argon, and carbon dioxide. Air is…

A: The air is composed of 78% nitrogen gas, 21% oxygen gas, 0.93% Argon gas and 0.04% carbon dioxide…

Q: Which of the following is included in all the conversion factors we've used in this unit so far? A.…

A: We have to find out which conversion factor is used in the given calculation.

Q: determine the quantity of moles in 4.21 x 1023 molecules of CaCl2. List the steps clearly. Use…

A: Given,  molecules of CaCl2 = 4.21 x 1023 molecules

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: 7-9. An organic compound is composed of 40.92 percent carbon, 4.58 percent hydrogen, and 54.50…

A: Empirical formula of a compound can be defined as the simplest whole number ratio of all atoms…

Q: 8. For the ions below, provide the molar mass, the mass of 1 mol (g/mol), and the mass of 1 cmol,…

A: Molar mass refers to the mass of one mole of a substance, it is measured in g/mol units.  1 mole is…

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

A:

Q: Calculate the empirical and molecular formula of the given. Question: Determine the molecular…

A:

Q: There are __________ mol of carbon atoms in 4 mol of dimethylsulfoxide ( C2H6SO)

A: Given , molecule = dimethylsulfoxide C2H6SO

Q: As a result of burning analysis of a caffeine sample 0,624 g C, 0,065 g H, 0,364 g N ve 0,208 g O…

A: Number of moles = mass / Molar mass

Q: The formula for xenon trioxide is XeO3. a. How many grams of xenon are present in 4.86 moles of…

A: The formula for xenon trioxide = (a) Grams of xenon present in 4.86 moles of xenon trioxide =?(b)…

Q: If the student used 3.103 g of MoOs, how many moles of MoO3 were present?

A:

Q: O 1.5 moles O 1.0 moles O 3.0 moles O 6.0 moles

A: From the formula,   2.0 moles Al contains 1 mol of Al2O3. (c) is correct option

Q: Determine the empirical formula of a compound that is 31.63% 09 31.56 % Ti and 36.81% Fe by mass Fe…

A: Given;

Q: Please check my work. Given: Aluminum is 38.00% by mass, Silicon is 13.18% by mass, and Oxygen is…

A: The answer is given below:

Q: Which sample contains the largest number of chlorine atoms? 10.00g of copper (II) chloride 10.00g…

A:

Q: If there are 3.70 moles of H,3.70 moles of H, how many moles of each of the compounds are present?…

A: Given :-  number of moles of H = 3.70 mol  To be calculated :-  number of moles of H2SO4  number of…

Q: a) Number of atoms found in 2.1 mol of N2 b) 1 mol of H2SO4 c) Scientific notation. *Write the…

A: To solve this problem we have to calculate the percentage of all the elements in Tylenol .

Q: How many moles would contain 12.0 g of P?

A: Introduction: As per the International system of units (SI), the moles is the unit of measurement…

Q: A. Calculate the molar mass of each substance. 1. NaCl 2. O2 3. O 4. CeH1206 5. (NH4)3PO4 6. Ag

A:

Q: Module 5 1.) How many formula units are in 1 mole of (NH,),SO,? 2.) How many moles are in 8.5 x 1026…

A: There are two questions and in questions 1 we have to calculate formula unit and in questions 2 we…

Q: y carbon atoms a

A:

Q: 1) CH, 2) NaOH I 3) MgBr, 4) Zn(NO,),

A: Following are the calculation of the molar mass of the given Compounds.

Q: sent in 8.58 x 102 molecules of this compound?

A: Dear student I have given answer to your first question in the image format. i cannot answer other…

Q: 5) 25 grams of PbSO4 is equivalent to how many moles? a) 0.0824 b) 1.21 c) 1.56 d) 1.98

A: Given data: Grams of PbSO4= 25 g. To find: The number of moles of PbSO4.

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: Suppose you have two samples that are equal in weight, 11.8 g Ti and 11.8 g Fe,O,. Calculate the…

A:

Q: Complete the table below for calculating the molar mass of the compound boron trifluoride. B LL F…

A:

Q: 10) 9.50 x 102 atoms of C

A: Number of moles of the substance is equal to the ratio of number of atoms and Avogadro's number.

Q: None

A: Step 1: Calculation of the moles of goldGiven,number of gold atoms = 2.50 × 1022 atoms We know,…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.