but all answers must include a unit and a chemical formula. O How many moles are in 5. 29 Gallium?" g of

Q: How many molecules are in 1 mol of water?

A: Given :- number of moles of water = 1 mol  To calculate :- number of molecules of water

Q: A compound contains iron and bromine. A sample of the compound contains 3 g of iron and 11.39 g of…

A: A sample of the compound contains 3 g of iron and 11.39 g of bromine.  as mass is provided , we can…

Q: what is a definition of a mole

A: A mole corresponds to the mass of a substance that contains 6.023 x 1023 particles of the substance.…

Q: How many moles of KBr are in 64.9 grams of KBr?

A:

Q: Calculate the number of moles of chlorine present in 100 g of chlorine gas.

A: We have to predict the moles of chlorine gas.

Q: How many grams of CO are in 0.585 moles ?

A:

Q: How many molecules are contained in a 51g sample of water?

A: mass of sample of water (H2O) = 51 gNumber of water (H2O) molecules = ?Note:molar mass of water…

Q: How many moles of NO2 are in 8.2x1025 molecules of NO2? Round your answer to 1 decimal place. Your…

A: According to the mole concept, there are 6.022 × 1023 molecules present in 1 mole of every…

Q: 13 Analysis of 1.60 grams of an oxide of iron formed 1.12 grams of iron. a What mass of oxygen was…

A: The objective of the question is to determine-a. The mass of oxygen formed during the analysis.b.…

Q: How many number of particles are in 5.0 g of table sugar?

A: Given, The number of particles are in 5.0 g of table sugar is:

Q: The formula for dinitrogen tetrafluoride is . How many molecules are in 8.83 grams of dinitrogen…

A:

Q: Carbon monoxide is a highly toxic gas released in small quantities from automobile exhaust. How many…

A:

Q: Convert 34.2 grams of Co to moles of Co.

A: Applying formula of mole  m = w/Mw

Q: How many moles of HF are in 60 grams of HF this

A:

Q: Moles of Mass of A atoms Divide by molar mass A atoms A to X Divide by mole ratio Convert ratio to…

A: Empirical formula: It is the formula that is used to represent the proportions of all the elements…

Q: How many moles of CO2 are in 3.13 grams of CO2? Express in decimal form.

A: Given that: Mass of CO2 = 3.13 g Moles of CO2 = ?

Q: How many moles of H2 gas

A:

Q: A molecule has an empirical formula of NO. If the molar mass of the molecular formula is 117g/mol,…

A: We have to calculate the molecular formula.

Q: How many moles are in 16.7 gg of allyl sulfide?

A: The chemical formula of allyl sulfide is (C3H5)2S. Molar mass of allyl sulfide = 2×{(3×12)+(5×1)} +…

Q: The number of formula units in 2.5x10-4 g of magnesium nitrate

A:

Q: A helium balloon takes up 4.35 liters of space. Your friend is showing off his new chemistry skills…

A: Dimensional analysis relates between physical quantities with the help of dimensions and units of…

Q: A compound has the chemical formula SrX2, where X is an unknown nonmetal. The percent by mass of Sr…

A:

Q: Convert 0.01300.0130 mol of aluminum to grams.

A:

Q: Phosphorus pentachloride is a white solid that has a pungent and unpleasant odor. Determine the…

A: Step 1:Step 2:Step 3:

Q: How many molecules are in the sample? 17 g C6 H12O6

A: No. Of molecules= (given mass/molecular mass) * Avogadro's no. Avogadro's no. is 6.023*1023

Q: Aluminum chloride is formed by reacting 15.99 g aluminum with 63.32 g chlorine. What is the percent…

A: Mass percentage is defined as the quantity of solute present in 100 grams of solution.

Q: Single Bonds Multiple Bonds H-H 432 N-H 391 149 c=C 614 H-F 565 N-N 160 |-CI 208 C=C 839 H-CI 175…

A:

Q: how many formula units in 7.69 grams of MgO

A: The formula unit is used to define the empirical formula. So we are basically asked to find how many…

Q: Step 1a: When percentages are given, assume that the total mass is 100 grams to determine the mass…

A: Given : % N in sample of unknown compound = 66.6%   To find : Moles of N in sample of unknown…

Q: The chemical formula for diethyl sulfoxide is: (CH,CH,), SO Calculate the molar mass of diethyl…

A:

Q: How many of molecules of water, H2O, are in a glass of 240g water?

A:

Q: How many sulfite ions are contained in 99.6 mg of sodium sulfite?

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: how many moles of Kr are contained in 398 mg Kr?

A:

Q: What is the mass of strontium in grams in 118 g of strontium iodide?

A: Given in the question, Mass of SrI2 = 118 gm Molar mass of SrI2 = 341.42 g/mol No. of moles of SrI2…

Q: How many moles are in 10 grams of Cr?

A: From the mole concept using this given equation- n: number of moles of Chromium (Cr) element. m:…

Q: How many iron atoms are contained in 354 g of iron?

A: The moles of iron can be calculated as

Q: How many molecules are in 3.0 moles of water?

A: Given  Number of mole of water = 3 mole  Number of molecule = ?

Q: The number of atoms in 25.7gAl?

A: The number of atoms in 25.7gAl are

Q: What is the mass of magnesium in grams in 2.74g of magnesium hydrogen carbonate?

A: The mass of magnesium hydrogen carbonate is = 2.74 g The mass of magnesium is =?

Q: 10. If the student used 1.056 g NaOH, how many moles of NaOH were present?

A: Mass of NaOH = 1.056 g  Moles of NaOH = ?

Q: How many ammonium ions are in 6.74 x 1024 formula units of ammonium carbonate? number of ammonium…

A:

Q: how many atoms are in 25.0g of Barium nitrate?

A: Given mass of Ba(NO3)2 = 25 g Molar mass of Ba(NO3)2 = 261 g/mol Avogadro number = 6.022×1023

Q: How many moles of NaOH are in 2.2x1024 formula units of NaOH? Round your answer to 1 decimal place.

A: Amount of substance is one of the seven basic physical quantities. Its unit is mol. For an element,…

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.