What mass of phosphorus is present in 25 g P4S3? A. 14g B. 4.5g C. 11g D. 3.2g E. 100g

Q: Balance the following equations:

A: balancing of reaction is done to follow the conservation of mass.

Q: You are drying a sample of Ba3(PO4)2. After 5 minutes of drying it weighs 1.2034 g. You continue to…

A: Answer: Percent change in mass will be the ratio of change in mass with initial mass, therefore %…

Q: 18. A silver wire has a diameter of 0.500 mm. What length of this wire contains exactly 1.00 mol of…

A: given, the diameter of silver wire = 0.500mm = 0.05 cm number of mole of silver = 1mol density of Ag…

Q: 1) Determine the number of moles in each sample: a) 38.2g sodium chloride b) 36.5g nitrogen monoxide…

A:

Q: A mixture of 56.0 g of S and 1.10×102 g of Cl2 reacts completely to form S2Cl2 and SCl2.…

A: Given: Mass of S = 56.0 gMass of Cl2 = 1.10×102 gWe need to find the mass of S2Cl2

Q: A 94.8 g sample of Fe;O4 reacts with 17.39 g of CO to form FeO and CO2. FegOals) + COlg)-- 3FEO(s) +…

A: Given chemical reaction :  Fe3O4 + CO ---> FeO + CO2

Q: Predict the sign of ΔS for

A:

Q: Use the standard entropy data to determine the change in entropy for each of the reactions listed (…

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

Q: Supply the structures of compounds A–I in the following synthesis scheme.

A: Alkane reaction with br2 leads to bromination and then reaction with (CH3)3COK abstract the proton…

Q: (a) 2CH4(g) + 2CO2(g) CH4(g) + 2H0(g) + 2CO (g) (b) CO2(g) + 3H;(g) → CH;OH(g) + H2O(g) (c)…

A:

Q: A 69.56 g sample of SOCI2 reacts with 13.93 g of CO2 to form SO2 and CCI4. 2 SOCI2 (1) + CO2 (g)…

A:

Q: (a) Determine the number of oxygen atoms and hydrogen atoms in1.00 kg of water. (b) Calculate the…

A: (a) Determination of number of oxygen atoms and hydrogen atoms in 1.00 kg of water is as follows;…

Q: An 86.04 g sample of H2SO4 is 91.22% pure. What is the mass of pure H2SO4 present in the sample?

A: % Purity = (Mass of pure substance x 100)/Mass of sample

Q: d. How many grams of potassium metal remain after the reaction? How many grams of water remain after…

A: K + H2O ------> KOH + H2   moles     1       1                1       1  Caculate…

Q: The foumatin constant 4 abd Lz Log 2 23.9 thee diffesnce Dan two ligende ewith Coppel is found to be…

A: Coordination complexes are formed by the coordinate bonding of metals and ligands of ionic or…

Q: (d) you (e) HCI - 80°C (f) HBr 40 °C

A: The complete chemical reaction with proper reactants and products are given in a attached image.

Q: Calcium oxide (CaO), also known as quicklime, can be produced by heating calcium carbonate (CaCO3).…

A: The molecular formula of calcium oxide is CaO. It states that one molecule of calcium contains one…

Q: A student weighs a 0.0103 g0.0103 g sample of magnesium metal. How many moles of magnesium does the…

A: The answer to the following question is given as:

Q: Determine the mass in grams of 4.83 × 10²¹ atoms of barium

A: Given :- number of atoms of Ba = 4.83 × 1021 atoms  Mass of 1 mol Ba = 137.33 g  To calculate :-…

Q: A 15.79 g sample of a hydrate of an iron(II) sulfate compound was heated, without decomposing the…

A: Let the formula of the compound is : FeSO4.xH2O  Weight of the compound (in hydrated form) = 15.79…

Q: ance the following equations: NH, (g)+O, (g) → NO, (g) +H,0 (g) А.) Al(NO,); + Na,S → Al,S, + NaNO,…

A: To balance the chemical equation we first need to count the number of atoms of each element on both…

Q: a) CIO, (aq) + 5 C(aq) + 6 H30*(aq) 3 Cl2(aq) + 9 H20(0) b) CaCO3(s) + SO3(g) CaSO4(s) + CO2(g) c)…

A: We have to write OA under the oxidizing agents and RA under the reducing agents and also consider…

Q: → 2NH3 (9) 1. N0 + 3H, 2. CO20) 2(g) CO(NH,2) + H,O (6), + 2NH, 2(g) 3(g) 3. C,H210) + H,O (a) 2CO,…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: alculate reduced molar mass (in g/mol] for two particles with masses 30.4 g/mol and 57.7 g/mol. Note…

A: Given mass of particle 1(m1) = 30.4 g/ mol Mass of particle 2(m2) = 57.7 g/ mol Reduced mass =?…

Q: Consider Cl2+F2=CLF3 (ΔH°f = -164.65 kJ/mol) . 1. If 42 g of F2 is combined with 142 g of Cl2, how…

A: Balanced chemical equation: Cl2  +   3F2  ------>   2ClF3 Number of moles = Mass/molar mass

Q: how many atoms of scandium are in 7.54 moles of scandium

A: According to  Avogadro,  1 mol of scandium has 6.023 x 1023 number of atoms  Then 7.54 mols of…

Q: A 85.6 g sample of Fe304 reacts with 18.2 g of CO to form FeO and CO2. FezO4(s) + CO(g) 3FEO(s) +…

A:

Q: 26,Sg iron l090 mitial 22.4mL woler 20.2'C cen sity watler 100g/m L pacily capmetly water: 4.184…

A:

Q: 10. One mole of Sulfur is 32.06 g. How many moles would be found in: a. 85.9 g of Sulfur b. 10.57 g…

A: given 1 mole sulfur = 32.06 g

Q: 15. Copper (1) oxide, Cu2O, is reduced to metallic copper by heating in a stream of hydrogen gas.…

A: Reaction: Cu2O +H2 →2Cu +H2O Molecular mass of Cu2O=(2 x 63.55 +16)=(127+16)=143 when 143 g of Cu2…

Q: 5.00 grams of a sample of hydrated PtCl4 are heated and lose 1.50 grams of water. How many moles of…

A:

Q: number

A: According to the question, the atomic number of oxygen is 8 and the atomic number of sulfur is 16.…

Q: C7H16(g) + O2(g) →   C2H2(g) + O2(g) →   C3H8O(g) + O2(g) →

A: Note : As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost…

Q: Determine the mass, in grams, of 0.580 moles of Pb (1 mol of Pb has a mass of 207.2 g).

A:

Q: What is the mass of copper  g what is the mass of chloride g given copper chloride 1.652g mass of…

A: Mass of copper = (mass of evaporating dish + copper) - (mass of empty evaporating dish) Mass of…

Q: How many moles of aluminum are in an aluminum block that meausres 3.00cm x 3.00 cm x 5.00cm? The…

A: Density: It is a ratio of mass of an object to its volume. Its SI unit is g / cm3. It creases with…

Q: A 85.6 g sample of Fe3O4 reacts with 18.2 g of CO to form FeO and CO2. Fe3O4(s) + CO(g) ----->…

A: We have to find out the mass of FeO formed after burning of 85.6 gram of Fe3O4

Q: The density of MgO is 3.6 g/cm3. The atomic masses of magnesium and oxygen are 24.31 g, and 16 g,…

A: Given that Density of MgO = 3.6 g/cm3 Molecular weight of MgO = (1* 24.31) + (1 *16) = 40.31 g/mol

Q: A 12.37 g sample of silver nitrate is reacted with 11.9 g of barium chloride according to the…

A: number of moles = mass/molar mass  mass = moles × molar mass

Q: Mass of crucible, lid, and magnesium oxide                                             ____19.41…

A: Given: Mass of the crucible, lid, and magnesium oxide = 19.41 g And Mass of empty crucible and lid…

Q: What is the mass of one mole of Sg?

A: Mass of one mole of any element means it's molar mass

Q: Given these reactions, where X represents a generic metal or metalloid 1)…

A: There are some errors in the given reactions, here  the corrected reactions are,   Required…

Q: 24.3 g He = ____________ mol He

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass.

Q: A 0.8870 g sample containUng Qaix Naci and KGI was Teated win AgNO3. formed had a mass of 1.913 g.…

A:

Q: 19. A certain sample of dichlorine heptoxide consists of 4200 oxygen atoms combined with chlorine…

A: According to the given data the sample is dichlorine heptoxide. The sample consists of a total of…

Q: What is the mass of 0.560 moles of chlorine gas?   A. 19.9   B. 63.3   C. 127   D. 39.7…

A:

Q: Given these reactions, where X represents a generic metal or metalloid   1)…

A: Given that: 1) H2(g)+12O2 (g)⟶H2O (g)               ΔH1=−241.8 kJ 2) X (s)+2Cl2(g)⟶XCl4 (s)…

Q: Identify each of the following reactions as a precipitation, neutralization, or redox reaction:

A: (a) Redox reaction. Oxidation number of Mg is changed from 0 to +2. (b) Neutralization reaction.…

Q: 4. For each of the following chemical ........a. CH4(g) + O2(g) → CO2(g) + H2O(g)b. Al(s) + HCl(aq)…

A: (a)In a balanced equation number of atoms for every element and total change in the reaction are…

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".