What mass of hydrogen gas could be produced from the reaction of 25.5 g of urea and 25.5 g KOH? Give your answer in grams. Use proper significant digits. Urea is (NH2)2CO. urea (s) + potassium hydroxide (aq) ® potassium carbonate (aq) + nitrogen (g) + hydrogen (g)

Q: Determine the theoretical mass of aspirin (acetyl salicylic acid) when using 3.682 grams of…

A: Salicylic acid reacts with acetic anhydride to give aspirin or acetylsalicylic acid and acetic acid.…

Q: 3 Cu +8HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H₂O In the above equation how many moles of water can be made…

A: Number of moles is calculated by dividing given mass by molecular mass.  A balanced equation is used…

Q: 1- An unknown compound has the following chemical formula: P2Ox where x stands for a whole number.…

A: Chemical formulae provide a means of describing any chemical material that uses the symbol of the…

Q: Part A - Calculate the mass (in grams) of the product formed when 15.30 g g of Cr completely reacts.…

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Q: Mg(s) + 2 HCl(aq) −−−→ MgCl2aq) + H2(g)   given that the mass of magnesium is 0.030 g, find the…

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Q: Calculate the mass of aluminum (Al) produced if 0.862 moles of Magnesium (Mg) react. 2 AIPO4 (aq) +…

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Q: Aspirin can be prepared from salicylic acid (C7H6O3 ), which has a molar mass of 138.12 g/mol, and…

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Q: A student weighs an empty beaker at 81.702 g. A sample of MgSO4·??H2O is added to the beaker, and it…

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Q: An experiment using the reaction below produces 23.26 grams of chlorine gas (Cl2). What mass of HF…

A: Given that : Mass of chlorine gas produced = 23.26 g The molar mass of chlorine gas is 70.91 g/mol.…

Q: Consider the following chemical reaction: Na2CO3(aq) + HCl(aq) -----------> NaCl(aq) + CO2(g) +…

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Q: A student weighs an empty beaker at 85.301 g. A sample of Na2SO4·??H2O is added to the beaker, and…

A: Mass of empty beaker = 85.301 g  Mass of beaker + hydrated salt = 86.607 g  Mass of beaker +…

Q: Propane gas, C3H8(g) , is used for barbeques. If 12.3 g of propane is combusted completely in a…

A: Given :  C3H8(g) +5 O2(g) --> 3 CO2(g) +4H2O(g)  Amount of C3H8 = 12.3 g  To calculate :  Amount…

Q: (2)co 2) A sample of the hydrate of cobalt (II) sulfate had a mass of 3.326g. After heating, the…

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Q: What was the percent of potassium chlorate in the mixture

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Q: The combustion of gasoline produces carbon dioxide and water. Assume gasoline to be pure octane…

A: Combustion reaction of octane 2C8H18 + 25O2 → 16CO2 + 18H2O From this Balanced chemical equation we…

Q: 1)A solution of Na2CO3 is prepared by dissolving 0.511 g of the solid in approximately 30 mL of…

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

Q: 5. Calculate the mass of oxygen required to react with 1.0 g of butane C4H10. _C4H10(g) +______O2(g)…

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Q: A 3.72 g sample of iron ore is transformed to a solution of iron(II) sulfate, FeSO4. This solution…

A: Given : Molarity of K2Cr2O7 = 0.110 M Volume of K2Cr2O7 = 60.9 ml. Reaction given :

Q: What is the theoretical yield of phosphoric acid? __ grams What is the percent yield of phosphoric…

A: Number of moles = mass/molar mass Percent yield = (actual yield/theoretical yield) × 100%  Molar…

Q: Vitamin C, an antioxidant present in citrus fruits, contains only C, H, and O. Combustion of 10.0 g…

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Q: Aqueous hydrobromic acid  HBr  will react with solid sodium hydroxide  NaOH  to produce aqueous…

A: Given information,      0.809 g of hydrobromic acid is mixed with 0.55 g of sodium hydroxide

Q: Consider the following chemical reaction: 2CH3OH(1) + 302(g) → 2CO2(g) + 4H20(1) Calculate the…

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Q: How many moles of Mg3P2(s) can be produced from the reaction of 0.240 mol Mg(s) with 0.020 mol…

A: From a balanced chemical reaction we can calculate the mass of the reactants and products .

Q: 2 Al(s) + 6 HCl(aq)  →  2 AlCl3(aq) + 3 H2(g) According to the equation above, what mass of…

A: Interpretation: From the given equation, what mass of aluminium is needed to completely react with…

Q: Phosphoric acid (H3PO4) can be prepared from phosphorus triiodide (PI3) according to the reaction:…

A: A reaction is said to be balanced when the number of different atoms present on the reactant as well…

Q: HCl (aq)           +          NaOH (s)        →        NaCl (s)           +          H20 (l) In the…

A: Given the mass of HCl taken = 2.5 g  Molar mass of HCl = 36.458 g/mol Conversion factor:  1 mol HCl…

Q: 6. While investigating mole ratios, a group of students collected data for the following chemical…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: A mixture sample containing 80% NaHCO3 and 20%NaCl was marketed for certain food preparations. As an…

A: NaHCO3 decomposes on heating as follows:

Q: Determine the molar mass of the compound if it is between 250.0 and 350.0 g/mol.

A: Let the acid be CxHyOz. Combustion results in formation if CO2 and H2O. CxHyOz + O2   gives    CO2 +…

Q: Vitamin C, an antioxidant present in citrus fruits, contains only C, H, and O. Combustion of 10.0 g…

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Q: Consider the chemical reaction :  2 Na3PO4 + 3 CaCl2 → Ca3(PO4)2 + 6 NaCl, what is the amounts in…

A: the reaction, 2 Na3PO4 + 3 CaCl2 → Ca3(PO4)2 + 6 NaCl weight of precipitate produced (Ca3(PO4)2) =…

Q: The balanced equation for the combustion of butane, CaH1o, is shown below. For your convenience, the…

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Q: You have 235.5 g of Ba(OH)2   How many moles of barium hydroxide, Ba(OH)2, are present in 235.5…

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Q: A chemist adds 2.00 L of a 5.9 × 10M mercury(II) iodide (HgI₂) solution to a reaction flask.…

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Q: You buy some Kool-Aid mixture packets from the grocery store. You put 1.89 liters (L) of water in a…

A: Molarity is the number of moles of solute dissolve in 1 litre of solvent. It determines the strength…

Q: A person drinks 1.50 × 103 g of water, H2O, per day. How many moles is this?

A: Given,Mass of water = 1.50×103 gMolar mass of water is 18.015 g/mol

Q: Sulfuric acid dissolves aluminum metal according to the following reaction:…

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Q: Sodium sulphate is used in detergents and can be synthesized by the following unbalanced reaction:…

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