Question 12 What is the molar mass of the compound below? 0 131.11 g/mol 133.13 g/mol 136.16 g/mol 142.22 g/mol O 128.08 g/mol

Q: QUESTION 3 This task asked you to understand Avogadro's constant. What is the value of Avogadro's…

A: The number of units in one mole of any substance is called Avogadro's number or Avogadro's constant.…

Q: Question 2 A compound A; containing only carbon, hydrogen and oxygen is found to be 78.30% C, 13.04%…

A: Compound A; containing only carbon hydrogen and oxygen% of C = 78.30 % = 78.30 g% of H = 13.04 % =…

Q: What is the amount of mol of 0 in 50 g of MgCO3?

A: The number of moles of a substance can be calculated from the mass of the compound using the molar…

Q: How many H20 molecules are there in 3 moles of H20 sample? O 6.02 x 1023 molecules O 2x 6.02 x 1023…

A: Given: Moles of water, H2O = 3 mol.

Q: amount

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is the formula for ammonium sulfide? Capitalization and punctuation count. ammonium sulfide How…

A: Chemical formula represent the element present in compound and their number in compound.

Q: What is the molar mass of hydrogen phosphate, H3PO4, given the following molar masses? MH = 1.01…

A: What is the molar mass of hydrogen phosphate, H3PO4 ?

Q: How many moles are in 4.8 x10 24 molecules of Na „0?

A: Answer :-  Number of moles of Na2O = 8

Q: What is the percent by mass of lithium in Li,O?

A: Percent by mass = (mass of Li/mass of Li2O) × 100%

Q: QUESTION 10 Which of the following is true for the H-X-H bond angel for the following molecules…

A: To solve this problem we have to know about bond angle of given compound .

Q: How many atoms of oxygen are contained in 47.6 g of Al 2(CO 3) 3? O 3.68 x 1023 o atoms 1.10 x 1024…

A: Note : As per our guidelines , we are supposed to answer only first question ( question 25) ,Kindly…

Q: Part A Which of the following is the correct formula weight for calcium phosphate? 310.2 amu 175.1…

A: Given,The compound:  calcium phosphateAtomic mass of Ca=40.078 amu, P = 30.97 amu and O = 16.0 amu

Q: Question 2 A compound commonly used in topical medicines has a molecular weight of 152.23 amu and a…

A: Here we are required to find the empirical formula

Q: 3.00 x 1023 atoms

A: Mass of Ca = 20.0 g Molar mass(MM) of Ca = 40.08 g Moles of Ca = Mass/MM     = 20.0/40.08   = 0.500…

Q: Calculate the mass, in grams, for each of the following. 1.70 moles of Na 3.60 moles of Ca 0.110…

A: Number of moles is defined as ratio of mass of substance to the molar mass of it. Number of…

Q: 2. How many grams of K2SO4 are there in 0.123 mole of K2SO4? (Hint: you need to calculate the molar…

A: Using molar mass of K2SO4 and mole concept we can solve this problem.

Q: Question 2 Compound A, containing only carbon, hydrogen and oxygen, is found to be 48.6% C, 8.16% H…

A: Given, Percent by mass of each element:C = 48.6 % , H = 8.16 % and O = 43.2 %The molar mass of…

Q: What is the molar mass of Na2SO4? Group of answer choices

A:

Q: How many moles are in 35.5 grams of NaNO3? 3017.5 mols 0.418 mols O 5.30 mols O 2.4 mols

A: Solution: We know that molar mass of NaNO3 is 84.9947 g/mol.  So, we can also that 1 mol of NaNO3…

Q: How many grams of 0.057 mole of Sn 3.44 g O 6.78 g 67.6 g 118.7 g

A: We know that, number of moles can be expressed as,                                         or, mass…

Q: QUESTION 9 What is the molar mass of butanol (C 4H 9OH)? O a. 30.03 g/mol O b. 193.05 g/mol O c.…

A:

Q: atoms

A:

Q: QUESTION 12 The highly toxic "antifreeze" has the formula C2H602. In your chemistry assignment you…

A:

Q: Calculate the number of grams in 4.9x10-2 moles of Vitamin C, C6H8O6.     2.8x10-4 g     8.6…

A: Molar mass = mass of 1 mole

Q: QUESTION 28 How many variables that indicate the state of gas? 04 6 02 QUESTION 29 Find the shape…

A: As per the guidelines , we are supposed to answer first question , to solve remaining questions…

Q: Question 2 What is the percent composition by mass of oxygen in the compound aluminum sulfate? O…

A:

Q: How many water molecules does 9 grams of water ( H2O ) contain? a) 6.02X1023 b) 6.02X10-23 c) 3.01…

A: We have to calculate the number of molecules.

Q: Question 11 What is the molar mass of (NH4)2SO4? O 132.02 g/mol O 114.11g/mol O 118.01 g/mol O…

A: Molar mass of the compound can be calculated by summing up masses of all the elements .

Q: Calculate the molar mass of AI(C2H3O2)3. 204.13 g/mol O 56.00 g/mol O 139.99 g/mol O 258.09 g/mol O…

A: We have to calculate the molar mass of given compound

Q: A 100.0 g sample of a compound is composed of 26.5 g of potassium, 35.4 g of chromium and 38.1 g…

A: Please find the answer below:

Q: Question 13 What is the mass in grams of 5.90 mol C3H18? O 19.3 g O 99.1 g O 389.0 g O 672.6 g

A: Given that,moles of C8H18 = 5.90 mol Molar mass of C8H18 = 114 g/mol number of moles = mass in…

Q: Serotonin is a neurotransmitter that contributes to feelings of well-being and happiness. The…

A:

Q: SH CH3 CH₂-CH-CH3 Spell out the IUPAC name of the compound. butan-2-ol Submit Previous Answers…

A: The rules of IUPAC nomenclature can be summarised as-Select the longest carbon-containing chain,…

Q: O 3x 6.02 x 1023, QUESTION 5 How many H20 molecules are there in 3 moles of H20 sample? 6.02 x 1023…

A: Given that, Moles of H2O=3 moles then,

Q: What is the molar mass of the substance shown below? NaHCO3 O 75.03 g/mol 83.00 g/mol 84.01 g/mol

A: Molar mass : It is defined as the mass of 1 mol of the substance, is equal to the mass of 6.022×1023…

Q: Question 15 Calculate the molar mass of a compound if 0.457 mole of it has a mass of 430.0 g. 0.941…

A: A question based on mole concept. Number of moles and mass of a substance are given that are to be…

Q: QUESTION 4 A compound with an empirical formula if CH is found to have a molar mass of 26.04 g/mol.…

A: Since you have asked multiple question, as per our company guidelines we are supposed to answer…

Q: What is the formula mass of Propane (C3Hg)? O 44.1 amu O 65.6 amu O 92.4 amu O 112.8 amu O 164.8 amu…

A: Note:- As per bartleby guidelines, I need to solve the first question in case of multiple questions.…

Q: How many molecules are present in 1/4 liter of water?   Question 32 options:   8.35 x 1024…

A: We have to calculate the number of molecules in 1/4 Liters of water.

Q: 4. How many potassium ions are contained in 22 g potassium phosphate?

A: Firstly mole of potassium phosphate calculated.

Q: Question 3 The recommended daily intake of Vitamin C (ascorbic acid ) in adults is 90 mg. Given the…

A:

Q: QUESTION 1 How many molecules of C2H5OH (density = 0.789 g/mL) are there in 50.0 mL? O 1.29 x 1023…

A: Hope this helps you.

Q: What is the mass of 3.367 moles of Ca(OH)₂? 249.5 g 4.544 x 10-2 g 22.007 g 499.0 g 74.10 g

A:

Q: The reaction between methanol and oxygen gas produces water vapor and carbon dioxide. 2 CH,OH(1) + 3…

A: From the reaction it is clear that 2 moles methanol and 3 moles oxygen reacts to give 4 moles water…

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.