A sample of cesium metal reacted completely with water, evolving 2.028 mmol of dry H 2 at 19 degrees C. What is the equation for the reaction? What was the mass of ceslum in the sample? (mmol means milli moles)

Q: 9. When a candle has been burning for an hour, its mass is less than it was at the beginning. (a)…

A: (a) Candles losses weight when it melts down. The mass of candle does not change during the melt…

Q: Turquoise, CuAl 6 ( P O 4 ) 4 ( OH) 8·5 H 2 O(s), is one of the most valuable non-transparent…

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Q: What is an extensive property? What is an extensive property of oxygen?

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Q: Which of the following laws explains the following statement? Acetylene gas, regardless of its…

A: This is the law of chemical proportion .

Q: Write a balanced equation for the reaction of iron with oxygen to produce iron (II) oxide.

A: We know that,    Iron(ii)oxide formula=FeO According to question when Iron react with oxygen to form…

Q: A 5.276 g sample of Al-Mg alloy is digested in nitric acid (to Al*3 and Mg*²). The solution is…

A: Given: Mass of sample = 5.276 g The solution is diluted = 500 mL three 100 mL of solution titrated…

Q: Is the decomposition of CuSO4· 5 H2O a physical or a chemical change? Why?

A: The copper sulfate penthydrate dehydrates to form the clear, anhydrous copper sulfate.

Q: reactant sWrite the balanced chemical equation for the combination (synthesis) reaction of magnesium…

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Q: Reacting water with magnesium nitride produces ammonia (NH3) and magnesium hydroxide. If this…

A: The reaction of magnesium nitride and water to produce ammonia and magnesium hydroxide is given by:

Q: In an experiment, 34.8243g of copper (II) nitrate hydrate, Cu(NO3)2•zH2O was heated to a constant…

A: Given, mass of copper (II) nitrate hydrate is 34.8243g and when heated the mass is 27.0351g.

Q: In the early days of automobiles, illumination at night was provided by burning acetylene, C2H2.…

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Q: If the furnace initially contained 22.322.3 kg of solid calcium oxide and 10.510.5 kg…

A: Given: Mass of CaO = 22.3 kg Mass of P4O10 = 10.5 kg  To find: mass of calcium phosphate in kg…

Q: Industrially, hydrogen gas can be prepared by combining propane gas (C3H8) with steam at about 400…

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Q: Gaseous water (H₂O) and solid calcium oxide (CaO) are formed by the decomposition of solid calcium…

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Q: Solid calcium chloride is formed by the reaction of chlorine gas and solid calcium . Write a…

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Q: Nitrogen gas can be prepared by passing gaseous ammonia over solid copper (II) oxide at high…

A: At high temperature, when gaseous ammonia passed over copper (II) oxide produces nitrogen gas and…

Q: 2. What mass of P,O, can be produced from 3.82 g P and 4.10 g 0,? Grams 3.82 g 4.10 g 4P 502 2P,05…

A: Consider the given reaction as; Grams:          3.82 g                        4.10 g…

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

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Q: If the furnace initially contained 22.122.1 kg of solid calcium oxide and 10.110.1 kg…

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Q: suppose a student reacts 1.57 g Ca with O2 gas. In his/her calculations however S/he mistakenly…

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Q: When potassium metal is placed in water, a large amount of energy is released as potassium hydroxide…

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Q: The fluoride rinse in dental offices usually contains sodium fluoride. Sodium fluoride can be…

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Q: What mass of oxygen gas is produced in the electrolysis of water, for every gram of hydrogen gas…

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Q: A 5.000 gram sample of MnB4O7·•8H2O is heated to drive off the water. What is the mass of the…

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Q: Hematite, Fe₂O3, is an important ore of iron. (An ore is a natural substance from which the metal…

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Q: NaOH + 2AL --> 2Na3 ALO3+3H2 what volume of hydrogen gas can be prepared from 5.40 grams of…

A: Given reaction is : 6 NaOH + 2AL --> 2Na3 ALO3+3H2 Mass og Al = 5.40 g

Q: Write a balanced equation for the reaction of iron with oxygen to produce iron (III) oxide.

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Q: What mass of Cu(103)2 can be formed from 0.650 g of CuSO4.5H2O? What mass of KIO3 is needed to…

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

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Q: What mass of hydrogen peroxide (H202) must decompose to produce (oxygen and) 0.77 g of water?

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Q: How many grams of water would be lost if a 8.000 gram sample of PtCl4·5H2O were heated?

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Q: Write a balanced chemical equation based on the following description: solid cesium reacts with…

A: A chemical equation is written to represent a chemical reaction in short hand form. It is basically…

Q: suppose 1.57 g of Ca is heated in the air. what is the theoretical amount of CaO that will be…

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Q: What mass of nitrogen monoxide will be produced from 12.0 kg of ammonia?

A: Given,mass of ammonia = 12.0 kg

Q: Titanium metal is made by reacting titanium (IV) chloride with magnesium metal.  Magnesium chloride…

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Q: What is the correct balanced equation for the reaction between cesium and chlorine? Express your…

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Q: mass

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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.