Mass of sample (g ) 1.94g Mass of empty crucible (g)  84.248g Crucible and sample after heating (g)  85.376g Mass of residue ( KCl ) (g)    Mass of  O2     Percent  O2

Q: An unknown pentahydrate salt is known to release water when heated according to the following…

A: Given: Mass crucible = 24.3365 g Mass crucible + hydrate = 29.6115 g Mass crucible + residue after…

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Q: What mass of carbon dioxide can be absorbed by 40.8 grams of lithium hydroxide?

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Q: Balance the following chemical equation (if necessary): NH3(g)+O2(g)_NO(g)+H2O(g)

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Q: 13. Р-(s) P4(s) + _Cl2(g) → _PCI5(g) AH°, = -1500 kJ balance & classify: The reaction is _thermic,…

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Q: Use the balanced equation for the combustion of ethane to complete the table.    2C2H6(g)  +…

A: Since the balanced reaction given is  2C2H6(g)  +  7O2(g) → 4CO2(g)  +  6H2O(g) Hence we can say 2…

Q: For the following reaction, 5.51 grams of chlorine gas are mixed with excess bromine. The reaction…

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Q: Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium…

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Q: Consider the titanium thermite reaction: Ti2O3 (s) + 2 Al (s) -----> Al2O3 (s) + 2Ti (l) You…

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Q: 1. Determine the experimental mole-to-mole ratio of Na2CO3 to NaCl from reaction data. a) First,…

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Q: 7.0 mol of NO and 5.0 mol of O2 are reacted together. The reaction generates 3.0 mol of NO2. What is…

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Q: 2 Cu, S s(s).-30.(g)-2cu,0(s)-250,(g) 2 Cu, O +2 SO, In the second step, copper(1) oxide and carbon…

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Q: Lv2 | Online teaching and learning resource from Cengage Learning GAccording to the following…

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Q: Averages using the table* average of NaOH used In liters  average moles of NaOH used (mol)…

A: The volume of NaOH used in trial 1, trial 2, and trial 3 is 47.98 mL, 47.12 mL, and 47.12 mL,…

Q: Balance the following equation. What are the missing coefficient? ___NH3(g) +____O2 (g)---> ____N2…

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Q: * Mass of the empty reaction test tube: _____27.54_____ g * Mass of the test tube and MnO2 used in…

A: We would use atmospheric pressure and pressure of vapor to calculate the pressure of dry gas.

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Q: C4H10 + O2 → CO2 + H2O (unbalanced) What mass of CO2 is produced in the complete combustion of 78.8…

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Q: Determine the mass of CaSO4 in the sample based on the following data to two decimal places mass of…

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Q: How many grams of NBR3 can be made from 2.22 × 102 moles of Br2 ? N2 + 3 Br2 2 NBr3 + 44.0 kJ

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Q: /hen Fe(s) reacts with Cl2(g) to form FeCl3(8), 95.6 kcal of energy are evolved for each mole of…

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Q: Solid lithium hydroxide is used to remove exhaled carbon dioxide from space vehicles by forming…

A: The balanced equation for the reaction between LiOH and CO2 is  2 LiOH + CO2 ---------> Li2CO3 +…

Q: If the specific heat of water is ca increase the temperature of 75 g of water by 30 °C? 1gx1°C» how…

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Q: A student carries out the following reaction: 2 Fe (s) + 3 S (g) → FezS3 (s). The student determines…

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Q: Use 1 decimal point for all atomic masses. 82.1 g of Ni3C(s) are reacted with 1.80 g of H2(g) by the…

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Q: C(s)+CO2(g)+heat⇌2CO(g) How many moles of gas are on the reactant side?  How many moles of gas are…

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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".