Calculate the mass of oxygen in 15.7 g of Ca(CIO3)2. Calculate the mass of Na₂CO3 that contains 3.4 g of Na.

Q: How many molecules are in 12.7 mol of H₂O?

A: To find the number of molecules in a given amount of substance, you can use Avogadro's number, which…

Q: Write equations corresponding to the following. (Use the lowest possible coefficients. Be sure to…

A: Ionization energy is defined as amount of energy required to remove the most loosely bound electron…

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A: To convert from kilometers per second (km/s) to meters per nanosecond (m/ns), you need to consider…

Q: What mass of Cr2S3 would contain 1.0x10^24 sulfur atoms?

A: The number of sulfur atoms in the given sample of Cr2S3 = the mass of Cr2S3 that contains  is

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A: The given reaction is between hydrogen gas and nitrogen gas to give ammonia gas. The volume of…

Q: A 430. ml solution of 0.230 M HBr(aq) is mixed with a solution of 225 mL of 0.350 M HClO₂(aq). How…

A: Molarity (M) is a concentration term for a solution. The molarity of a solution is defined as the…

Q: Give detailed Solution..don't give Handwritten answer

A: We are given the reaction S(s) + 3F₂(g) → SF₆ (g) Volume of SF6 produced = 877 L  = VPressure = 2…

Q: 24. An electron in a certain molecule has an energy of 2.0 x 10-18 J. If this electron absorbs a…

A: The initial energy of the electron in the molecule is = 2.0×10-18 J The frequency of photon absorbed…

Q: What is the energy associated with the formation of 2.05 g of 4He by the fusion of 3H and ¹H?…

A: Given is a numerical associted with the chapter radioactivity and specifically fusion reaction.

Q: Provide the structure for (3S, 4S)-3-hydroxy-4-phenyloctanoic acid.

A: The objective of this question is to show the structure of (3S,4R)-3-hydroxy-4-phenyloctanoic acid…

Q: The titration of vitamin C with iodine proceeds according to the given equation. C6H8O6+12 C6H6O6 +…

A:

Q: According to the following reaction, how many grams of ethylene (C₂H₂) are necessary to form 0.968…

A: Mass of ethylene  necessary to form 0.968 moles of ethane  =?

Q: of mercury 66-How many grams of sulfur (S) are needed to react completely with 246 g (Hg) to form…

A: We have to find the mass of sulfur needed

Q: How many zinc atoms are contained in 7.66 *105 mmol of zinc? O 4.61 1026 Zn atoms O 3.24 1026 Zn…

A: The number of molecules or atoms present in the one mole of the substance is equal to the Avogadro…

Q: How many molecules of sulfur trioxide are produced when 1.62 mol of oxygen react completely in the…

A: We have to calculate the number of molecules formed from the reaction of 1.62 mol of oxygen with S8…

Q: How much energy is required to raise the temperature of 5.00 kg of lead from 20.0°C to its melting…

A: Given :-              Mass of lead = 5.00 kg             Initial temperature = 20°C…

Q: Complete the table below for calculating the formula weight of the lonic compound cobalt(III)…

A: Given,The formula of the ionic compound: CoI3SymbolAtomic weightNumber of ionsweight of ionsCation…

Q: How many O2 molecules are needed to react with 2.72 g of S?

A: The balanced reaction can be written as follows:The mass of S given = 2.72 g            The…

Q: The reaction enthalpy for 2CO2(g) → 2CO(g) + O2(g) is +566.0 kJ.mol-¹. The standard enthalpy of…

A: The enthalpy of reaction, ∆H = +566.0kJ•mol-1The standard enthalpy of formation of CO(g)=…

Q: How many grams of H are in 0.81 mol of allyl sulfide (C3 H5 )2 S? Please show the conversion work…

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Q: Determine the mass in grams of 6.63x10^21. The mass of one mole of zinc is 65.39 g

A: Number of zinc (zn) atoms = 6.63 × 1021 atomsSince, the mass of 1 mol of Zn is 65.39 g that means…

Q: The gas sample has a volume of 31.4 μL at 22.6 °C. What is the volume of the gas after the sample is…

A: The initial volume of the gas sample = The initial temperature of the gas sample = The gas sample is…

Q: What is the energy (in J) of a photon required to excite an electron from n = 2 to n = 4 in a He+…

A: Energy is required to excite an electron from lower state to higher excited state. In the given…

Q: Give detailed Solution..don't give Handwritten answer

A: Based on the concept of stereochemistry, we need to draw cis- isomer of the given compound.A cis-…

Q: How much heat is absorbed in the process of making 0.793 mol of CF from the following reaction? C(s)…

A: The given thermochemical reaction is :C (s) + 2 F₂ (g) → CF₄ (g) ∆H° = 141.3 kJ/mol

Q: A solution contains 0.500 M HA (K,= 1.0 x 108) and 0.390 M NaA. What is the [H] after 0.10 mole of…

A: pKa  = - log Ka            =  - log (1.0  * 10-8)          = 8

Q: Mount Everest is 29,030 ft high.What would this vaule be,expressed in km?

A: Mount Everest is 29030 ft highChange to Km = ?

Q: This reaction is balanced 2C4H10 (g) + 13 02 (g) =8 CO2 (g) + 10 H2O (g)How many mol O2 are needed…

A: The given moles of  = 7.05 mol The moles of O2 needed = ?

Q: A certain reaction, 2A + BC, has a standard enthalpy of reaction of AH = -40.4 kJ/mol. What would be…

A: Given reaction with the  value:     ... (1)

Q: The enthalpy change for the following equation is -53 KJ. The enthalpy of formation A Hfj in KJ/mol…

A: To find the enthalpy of formation () for the given reaction, you can use the following equation:In…

Q: Give detailed Solution..don't give Handwritten answer

A: We have to fill the missing part of this equation

Q: Determine the pH of a solution that is 0.00426 M HCl and 0.0372 M HClO₂. The K₂ of HClO₂ is 1.1 ×…

A: The molarity of HCl is 0.00426 M.The molarity of HClO2 is 0.0372 M.The acid dissociation constant to…

Q: According to the following reaction, how many grams of carbon dioxide will be formed upon the…

A: Unbalanced reaction:The given mass of oxygen = 28.9 gThe mass of carbon dioxide formed = ?

Q: Balance the following redox reaction in basic solution. Cl(aq)+N₂(g) → Cl₂(g)+N₂H₂(aq) Cl (aq) +…

A: The oxidation number of chlorine(Cl) in Cl- and Cl2 are -1 and 0 respectively.Similarly, the…

Q: Question Enough of a monoprotic acid is dissolved in water to produce a 0.0100 M solution. The pH of…

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Q: How many grams of Ag+ are present in 4.46 grams of silver hydroxide?

A: Molar mass = molar mass of all the atoms of each elementsMolar mass of AB2 = molar mass of A + 2 x…

Q: If 43.0 mL of 0.200 M HCI solution is needed to neutralize a solution of Ca(OH)2, how many grams of…

A: Given,Molarity of HCl = 0.200 MVolume of HCl = 43.0 mL

Q: The mass of a golf ball is 45.9 g. If it leaves the tee with a speed of 73.0 m/s, what is its…

A: Given, Mass of golf boil (m) =45.9 g = 0.0459 kg Speed (v) = 73 m/s Wavelength= ?

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.