molar weight

Q: 2. A mixture of Na2SO4 and its hydrate Na,SO4-10H2O has a mass of 1.5099 g. After heating to drive…

A: Mass percent :- The mass of a component present in 100 grams of a mixture is known as mass…

Q: 6) o.025 MOL OF AN IONIC COMPOUND AlaSp CONTAINS o.05 MOL CATIONS AND 4.5×1022 anions. Given: molar…

A: Note: since you have posted a question with multiple sub parts. We will solve only the first three…

Q: What is the mass percentage of carbon in C6H12O3? Express your answer as a percentage (i.e., out of…

A:

Q: 3. Lithium has two stable isotopes with masses of 6.01512 u and 7.01600 u. The average molar mass of…

A: Answer is explained below.

Q: How many C atoms are present in a 7.57 ng sample of nitrobenzene, C6H5NO₂? Note: 1 ng is one…

A: Given mass of nitrobenzene = 7.57 ngRequired no. Of C-atoms in 7.57ng of nitrobenzene = ? As 1ng =…

Q: What is the mass percentage of O in CO2? Provide an answer to two decimal places.

A: Given,  The mass percentage of O in CO2 is:

Q: 5.000 gram sample of hydrated beryllium carbonate, BeCO3·xH2O is heated according to the procedure…

A: To calculate the number of moles of H2O and BeCO3.

Q: H₂C HU H C CH- CH 0 The compound's molecular formula (eg c13h1201, write 1 if 1 is the subscript) is…

A: The molecular formula of a compound shows the atomic symbols of all the constituting atoms present…

Q: If there were 4.00 x 10^23 sodium ions available, (and more than enough carbonate ions), how many…

A:

Q: Straight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula C,H2n++…

A:

Q: If a sample of urea, CH4N2O is 55% pure, what is the percent by mass of nitrogen in this sample…

A: Given that -  Percentage purity of urea , CH4N2O is = 55%  Molar/atomic masses are -  C = 12.01…

Q: Question attached

A: According to answering guidelines only first 3 sub-parts of the question needs to be answered , so…

Q: What is thé mass percentage of C in codeine, C18H21NO3? Provide an answer to two decimal places.

A: Given : We have to calculate mass percentage of carbon in codeine.

Q: What is the mass percentage of carbon in C7H11O3? Express your answer as a percentage (i.e., out of…

A: Mass percentage of element in compound is defined as percent ratio of element mass to the whole…

Q: Caffeine (MM = 194.2 g/mol) is a small molecule that many people ingest for its stimulant effects.…

A: Given molar mass of caffeine = 194.2 g/mol percentages C = 49.5℅ N = 28.9℅ H = 5.19℅ O = 16.5 ℅

Q: 2) Methanol (CH3OH) is a single-carbon alcohol that is commonly known as wood alcohol, because it…

A: A mole of an element or compound has Avogadro number of atoms or molecules in it. Each element or…

Q: Find the mass of 2.54 X 1023 molecules of Ca(OH)2? Use: Ca = 42.0g, H = 1.15g and O = 15.8g as…

A:

Q: A cylinder of nitrogen gas (N2) weighs 550 grams. How many moles of nitrogen are present in the…

A: Molar mass of N2 = 28.0 g/ mol

Q: What is the mass of 0.1 mol of ammonium carbonate give answer to 2 decimal places use the relative…

A: The question is based on mole concept. We need to calculate mass of given quantity of ammonium…

Q: (c) In the core of the modern Sun, the density is about 1.25 x 105 kg/m³. What is the concentration…

A:

Q: 2: Find the number of K* ions in 3.41 mol of K,HPO4? 3: Find the amount of the indicated element (in…

A: 1 mole of any compound has 6.023*1023 molecules or atoms. Moles = given mass of compound/molar mass…

Q: Calculate the mass, in grams, of 322 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

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Q: Straight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula…

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Q: Molar Mass Number of Representative Particle Mass Substance Number of moles (g/mol) (9) Particles

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Q: 2HCN9) + 6H,0 (9) 302(9) 4. How many Liters of HCN gas can form from the reaction of 1.56 x 106…

A: The limiting reagent of a reaction is the compound that is consumed completely in the reaction. It…

Q: 1.) Calculate the moles of KHP in flask #1. grams KHP Molar Mass of KHP (A1) 204.22 g/mol moles KHP…

A:

Q: Straight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula…

A: Given that :-  saturated carboxylic acids has the general formula CnH2n+1COOH  Atomic weights:- 1) C…

Q: S    +   6 HNO3  -->   H2SO4   +  6 NO2   +   2 H2O In the above equation how many moles of water…

A: First We have to determine moles of nitric acid.

Q: 4A. How many grams of potassium chloride are produced from... ...2.50 g of potassium and excess…

A:

Q: What mass of K is found in 60.3 g of K3PO4? Enter your answer accurate to three significant figures.…

A: The mass of = 60.3 gThe mass of K found = ?To calculate the mass of K first, we need to calculate…

Q: 1. Find the necessary amount of Ag,CO; in grams in order to obtain 79.1 g of silver. A92CO3 · Ag(s)…

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Q: According to the following reaction, how many moles of chlorine gas are necessary to form 0.220…

A: Phosphorus reacts with chlorine to form phosphorus trichloride. The equation for the balanced…

Q: What is the molar weight of potassium phosphate? (Possible atomic weights to be used: H=1; C=12;…

A: Molar weight: The molar weight of the compound can be defined as the sum of the atomic masses of all…

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".