Calculate the equivalent weight of the following materials : Al(OH)3 : H3PO4 : Ca(OH)2 : NH3 : knowing that : Al = 27    O = 16      H = 1      P = 31     Ca = 40    N = 14

Q: Calculate the number of grams of sodium in 8.2 g of each of the following sodium-containing food…

A: Given compounds are : a). NaCl (table salt) b). Na3PO4(sodium phosphate) c). NaC7H5O2 (sodium…

Q: NO21 15. Formula: No: 2. 16. Name:

A: Note - Since you have asked multiple questions, we will solve the first question for you. If you…

Q: 27. 1.20 g of a gas compound containing C, H and S in 2.10 L. flask has the pressure of 108 mmHg…

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Q: 3H2(g)+N2(g)→2NH3(g)3H2(g)+N2(g)→2NH3(g) What is the theoretical yield of ammonia, in kilograms,…

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Q: 27.   1.20 g of a gas compound containing C, H and S in 2.10 L. flask has the pressure of 108  mmHg…

A: Given, Mass of gas compound = 1.20 g Volume of flask = 2.10 L Pressure = 108 mm Hg Temperature =…

Q: C + 2 H2 ----> 1 CH4 What is molar ratio of C to H2 ?

A: C + 2H2 --> 1CH4

Q: Calculate the percentage recovery and percentage using the data below 1)mass of lavender…

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Q: Calculate the exact mass of NaOH needed to prepare 1.0L of 0.25N NaOH for standardization.

A: Concentration terms are used to express the amount of solute present in a given amount of solution.…

Q: If a 25 kg LPG tank is 30% butane (C4H10) , how many molecules of butane are contained in the tank?…

A: The concentration of a substance can be measured in terms of mass by mass percentage. This…

Q: It is well known that air consists of 21 mol O, and 79 mol N, Calculate the average molecular weight…

A: Given : Air contains 21 moles of O2 and 79 moles of N2. Molar mass of O2 = 32 g/mol. And molar mass…

Q: OH 0 (1) (Enter the elements in the order: C, H, N, O.) molecular formula (1) = empirical formula…

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Q: A crystal of the mineral pharmacosiderite, Fe3(AsO4)2(OH)3•5H2O, contains what percent of  oxygen by…

A: The molecular formula of the crystal pharmacosiderite is = Fe3(AsO4)2(OH)3•5H2O One molecule of the…

Q: 53: Human cells obtain energy from a reaction called cellular respiration. Balance the skeletal…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: a) Cation exchange is an important aspect of soil fertility (i) Explain what is involved in CEC (ii)…

A: i) CEC stands for Cation exchange capacity. By determining CEC we can understand how much calcium,…

Q: What is the empirical formula for C4H1002? O C2H50 O CHO O C2H40 O CH20 CHO2

A: the empirical formula of C4H10O2 is

Q: What is the molar ratio between O2 and H2O? 4 NH3 + 5 O2 4 NO + 6 H20 ->

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Q: The equivalent weight of CUSO4.5H2O is A- 79.75 B- 249.5 C- 124.75

A: The equivalent weight of CuSO4.5H2O has to be given.

Q: What is the mass of 2.11x1024 molecules of C2H6?

A: 1 mole of C2H6 contains 6.023*1023 molecules. Number of molecules present in C2H6 2.11*1024…

Q: Complete the equation (including states) below. Note: Write formula with numbers not in subscript…

A: Given reaction is acid base titration reaction. Potassium hydroxide (KOH) react with sulphuric acid…

Q: Ex: Calculate the Equivalent weight for Compounds below. أسئلة: احسب الوزن المكافئ للمركبات الاتية…

A: Equivalent weight is the mass of a compound that reacts with a fixed quantity of another substance.…

Q: The ratio of Molar masses of C6H1206 and Water is 1:10 180:10 342:18 O 10:1 hp

A: Molar mass can be calculated by the multiply index to the each atom molar mass and add them.

Q: Balance the following equation, and then calculate how many moles of oxygen are needed to produce…

A: The balanced equation can be defined as the chemical equation where each element or atom on both…

Q: For items 5 and 6: 5. What is the mole ratio of 3NO2 to 2HNO3? 3NO2 + H2O → 2HNO3 + NO 6. What is…

A: Stoichiometric relation help in finding the relationship between the quantity of reactant and…

Q: ) LIAIHA (excess) CN 2.) H30*, H20 pyridine a) 1.) b.) 1.) c.) 1.) H2N. 2) 2) NH2 2) 3.) 3.) 3.) d)…

A: Given reaction,

Q: When 0.6742 g mixture of a mixture containing only MgCO3 and CaCO3 is treated with an excess of HCl,…

A: Reaction of magnesium carbonate with calcium carbonate in presence of acid gives magnesium oxide and…

Q: Given 1 tonne of a mixture of 70% malachite, CuCO3.Ca(OH)2 and 30% emerald green, Cu(C2H3O2)2.3…

A: NOTE: The formula given for malachite is incorrect. The correct formula for malachite is…

Q: calculate the grams of silver produced by the decomposition of 5.91g of silver oxide 2 Ag2O --> 4Ag…

A: Given :-  2 Ag2O --> 4Ag + O2  Mass of Ag2O = 5.91 g  To calculate :-  Mass of Ag (in grams)

Q: If 2.112g of Fe2O3 reacts with 0.687 of Al, how much pure Fe will be produced? Fe2O3 (s) + 2 Al (s)…

A: The given reaction is shown below. The given weight of Fe2O3 is 2.112 g. The given weight of Al is…

Q: An alloy consists of 240.03 grams of copper and 0.839 kilograms of gold. If the atomic weights of Cu…

A: First calculate the mole of both metal in alloy than for mole percentage of copper  take ratio of…

Q: Calculate AH° for the process ½ N2(g) + ½ O2(g)→ NO(g) from the following information AH° = -192.3…

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Q: the mass of Ag2CO3 will be formed? Discuss your results. 2AgNO3(aq) +N22CO3(aq) → Ag2CO3() +…

A: A)Use stoichiometry calculation to get the answer. B) normality= molarity×nfactor

Q: What is the mass percentage of S in hydrochlorothiazide, C₇H₈ClN₃O₄S₂? Provide an answer to two…

A: The percent mass of S in given compound is determined by using following expression. %S=Molar mass…

Q: 1.20 g of a gas compound containing C, H and S in 2.10 L. flask has the pressure of 108  mmHg at the…

A: Given :  Mass of gas= 1.20g Volume=2.10L Pressure in flask= 108mm HG  Temperature= 25°C= 298K C =…

Q: Considering the chemical equation below: 4 C3H5BR3 + 17 02 12 CO2 + 10 H20 + 6 Br2 What is the…

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Q: calculate the quantities needed to prepare the solid and semisolid compounds. Round your answers to…

A: According to the question, we need to prepare 1.5 oz i.e 42.52 grams of 15% salicylic acid ointment…

Q: (3b-401-56) Plants carry out photosynthesis by combining carbon dioxide and water to form glucose…

A: The given reaction is,                     6 CO2  +  6 H2O  ---->  C6H12O6    +   6 O2 Clearly,…

Q: Given the following reaction: 3 NiCl2 + 2Na3PO4 Ni3(PO4)2 +6NaCl, what is the mole ratio for NiC12…

A: 3NiCl2 + 2Na3PO4 →Ni3(PO4)2 +6NaCl

Q: 36. ) How many molecules of N2O are there in 60.0g og N2O

A: Please find your solution below : Avogadro's number gives the number of units (atoms, molecules or…

Q: Calculate the number of grams of sodium in 7.5 g of each of the following sodium-containing food…

A: The number of moles of a species is calculated by expression (1) in which n is the number of moles,…

Q: 3. H30 + Y 国 2. HO O

A: The given reaction is an example of a directed aldol condensation reaction.

Q: 10.00 grams of a sample containing C, H, O, and N with a molar mass of about 324AMU were burned in a…

A: Given : Mass of compound burned = 10.00 g Mass of CO2 produced = 17.6 g Mass of H2O produced = 5.55…

Q: Calculate the value of AH for the rea N2H4 (1) + 02 (g) N2 (g) + 2 NH3 (g) + 3 N20 (g) N20 (g) 2 NH3…

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Q: For a 100 grams plant food sample in which you recovered 50.0 g of NH4 MGPO4 * 6H2O that equaled…

A: The question is based on the concept of experimental calculations. We have  to calculate percentage…

Q: How much oxygen (in grams) will form from 30.2 g of N2O5?    2N2O5(s)  →  4NO2(g) + O2(g)

A: The reaction given is 2 N2O5(s)  →  4 NO2(g) + O2(g) Given : mass of N2O5 reacting = 30.2 g

Q: Thin film of silicon , Si is used for fabrication of electronics components. What mass of SiH4  is…

A: For a balanced chemical reaction .aA+bB→cC+dDMoles of A reacteda=Moles of B reactedb=Moles of C…

Q: Using the following equation: Fe203(s) + 3H2(g) What is the molar ratio of iron (III) oxide (Fe,03)…

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Q: Sulfate (SO2) is typically determined by dissolving in H₂O followed by precipitation as BaSO4 via…

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Q: Given these molecular weights of only nonpolar and non-ionic molecules consisting of only hydrogen…

A: Melting point is directly proportional to number of the carbon atoms. Longer the carbon chain higher…