MOLAR VIEW T03/S01 How many moles of NH.+ ions are present in 2.30 · 103 mol of NH.Br formula units? Express your answer in scientific notation. Molar Mass (g/mol) NH4Br 97.943 NH4+ ion 18.039 x 10 Br" ion 79.904 Avogadro's No. (mol-1) 6.022x1023

Q: Calculate, to the correct number of significant figures, how many molecules of Sg are contained in…

A:

Q: What is the mass in grams of 0.76 mol of potassium chloride? Group of answer choices a, 60 b, 99.4…

A: We'll answer the first question since the exact one wasn't specified. Please submit a new question…

Q: What is the mass % of sulfur in aluminum sulfate Al2(SO4)3 rounded to three significant figures?

A: Considering the atomic mass of elements present in the aluminium sulfate, we determined the molar…

Q: Formula: M1 x V1 = M2 x V2 I need to find M2. M1 = Molar mass of Cobalt 2 Chloride (which i…

A: Interpretation -  To find the value of M2 according to given formula   M1 x V1 = M2 x V2  when…

Q: O STOICHIOMETRY Limiting reactants Gaseous butane (CH₂(CH₂)₂CH3) will react with gaseous oxygen (0₂)…

A:

Q: why kg molecule -1 changed to kg  how did they remove molecule-1 in the question

A:

Q: The amino acid arginine has an approximate molar mass of 174 g/mole. If the percent composition is…

A:

Q: Converting amount (mol) to mass (g) using M (74):      Mass (g) = amount (mol) × no. of grams/1 mol

A: One mole of a substance is that amount of it which contains as many entities as there are atoms in…

Q: How many moles are in 44.0 g of Al₂(CO3)3? Be sure to answer all parts. Enter your answer in…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Thus,

Q: A sample of Water, H2O, has a mass of 55 grams. Determine the number of moles in the sample.

A:

Q: Convert 7.61 mol NaCl to moles of CaCl2, using the equation given below.  Round to the nearest 0.01,…

A:

Q: 19 How many moles are there in 2.00×10 Molecules of C Cly?

A:

Q: CALCULATIONS Answer the following in Question 1-2 involves the same process three different times.…

A: The objective of the first question is to convert the mass of NaHCO3 into moles. The molar mass of…

Q: D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 26) 1.54 x 10° moles of Zn…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Liquid octane (CH₂(CH₂) CH₂) will react with gaseous oxygen (0₂) to produce gaseous carbon dioxide…

A:

Q: How many grams of Al2(CrO4)3 (HINT: F.M. = 401.96) would be required to obtain 12.00 g of…

A:

Q: Calculate the mass in grams of 3.19 × 10²4 molecules of propylamine. The chemical formula for…

A: Molecules of propylamine = 3.19 × 1024  Molecular formula of propylamine = C3H9N  Molar mass of…

Q: Moles 6.87 moles CH, 1.32 moles 0₂ Mass (grams) 12.5 g N₂ Particles (Atoms or Molecules) Volume (L)…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first three parts…

Q: A chemist weighs 50.0 grams of solid NaOH. a) How many moles of NaOH are in the sample? [ Select ]…

A:

Q: 1. How many moles is 8.1 x 10^24 molecules of HCN? SHOW YOUR WORK!

A: Number of molecule given = 8.1 × 10^24molecule

Q: molecules CO₂ 15 mol CO₂ 7. How many atoms of oxygen are in 1.25 mol of NaNO? 03 = 6.022x1023 1.25 X…

A: 7) Given, moles of NaNO3 = 1.25 mol Number of Oxygen atoms = ?

Q: Calculate the number of moles of CrCl3 that could be produced from 50.5 g Cr203 according to the…

A:

Q: 1. How many significant figures are in the number 0.0840900? Write the following number in standard…

A: Zero between digits is significant Zero left to decimal is non significant Zeroes just after decimal…

Q: How many moles of CH4 are in 9.37 x 1023 molecules of CH4? Do not put units in your answer. Report…

A:

Q: 2. Calculate number of molecules in 2.33 g CH6. molar masses: C = 12.01 g/ mole and H = 1.008 g/…

A: Given: Mass of C6H6 = 2.33 g.

Q: Part B 118 mg C6 H12O6 in 5.01 g H20 Express your answer as a percentage. ? mass % = % Submit…

A: Mass% = (mass of solute/mass of Solution) x 100

Q: Vitamin C, an antioxidant present in citrus fruits, contains only C, H, and O. Combustion of 10.0 g…

A:

Q: S + 6 HNO3 --> H₂SO4 + 6 NO2 + 2 H₂O In the above equation how many grams of water can be made when…

A:

Q: Canvas O AICI 4. O Al 3Cl. Question 5 What is the mass in grams of 0.8 mol of glucose, C 6H 120 6?…

A:

Q: TRUE OR FALSE. The value of Avogadro’s number is 6.02 x 1023 g/mol.

A:

Q: Aluminium has a density of 2.70 | g/cm3 . How many moles of aluminum are in a 13.2 cm3 block of the…

A: Density :- Density of a substance is its amountof mass per unit volume . So , density is the…

Q: percent composition

A:

Q: Many explosives have the general formula CwHxNyOz where w, x, y, and z are subscripts. These…

A:

Q: empirical

A:

Q: 3. Calculate the percent by mass of the second element in the properly written formula. Example, for…

A: We need to find the percentage by mass of the second element in the properly written formula of the…

Q: Aqueous hydrochloric acid (HCI) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A:

Q: Convert mass to moles then moles to number of molecules. Use the formula masses you calculated in…

A: we have to calculate formula mass, moles and number of molecules

Q: 2 NH3 + 3 CuO --> 3 Cu + N₂ + 3H₂O In the above equation how many moles of N₂ can be made when 190.1…

A:

Q: MOLES/MOLECULES T04/SO2 If a sample of B10H10Bra is found to contain 1.20 - 1019 B atoms how many…

A:

Q: 2. In a certain compound of chromium, chlorine, and water, CrxClyoz H₂O, we find that a sample…

A: (2) Following information about the substance given - Mass of sample = 20.000 g Mass of Chromium Cr…

Q: Which of the following is true about finding the molar mass of potassium sulfate, K₂SO4? A. The…

A: The molar mass of a compound can be calculated by adding the standard atomic masses (in g/mol) of…

Q: A chemist measured out 8.25 g of copper(II) bromide tetrahydrate (CuBr2 ·4 H2O). How many moles of…

A:

Q: TIT Part 3: Mass to moles. Convert mole quantities to masses. Use the periodic table for atomic…

A:

Q: Cinnamic alcohol is used mainly in perfumery, particularly in soaps and cosmetics. Its molecular…

A: Given,Molecular formula of Cinnamic alcohol is C9H10O Mass of sample = 0.836 gRequired,…

Q: 2 NH3 + 3 CuO --> 3 Cu + N₂ + 3H₂O In the above equation how many moles of N₂ can be made when 170.6…

A: Given equation,  2 NH3 + 3 CuO → 3 Cu + N2 + 3 H2O Molar mass of N2 = 14+14 = 28 g.mol-1 Molar mass…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".