mass

Q: If 26.2 grams of carbon (grapefruit) and 69.8 grams of oxygen combine to form carbon dioxide, how…

A: The reaction of Carbon and Oxygen to form carbon-di-oxide is--------------- C + O2 → CO2 So 1 mole…

Q: the mass of a 8.45 m3 piece of Cu is ___________g.

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Q: Methane (CH4) and Oxygen react to form carbon dioxide and water. What is the mass of water formed if…

A: Limiting reactant :- A reactant which is present in lesser number of moles than required as per…

Q: 2 21. dL 0.70 L = ?

A: The "Multiplication and Division Rule" is a concept used in dimensional analysis or unit conversions…

Q: 9 water molecule(s) in to grams

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Q: Which of the following is an extensive property of matter? temperature boiling point density mass

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Q: Which quantity represents the smallest mass?   Question 15 options:   1 g   10 g   100 g   100…

A: Mass is the amount of quantity of matter occupy by it.  Mass of the Substance can be measured by…

Q: What would you multiply "grams of chromium" by to get the units "atoms of chromium" ? (number)…

A: Formula used:  No. of moles = grams/molar mass  No. of atoms = no. Of moles × 6.022 × 1023 mol-1

Q: What is the volume of 1000 g of metal A?

A: Interpretation-  To determine the volume of 1000g of metal A -    Introduction-  To determine the…

Q: Calculate the mass of camphor (C1H160) that contains a trillion (1.0 x 10) carbon atoms. Be sure…

A: Given :-  The molecular formula of camphor = C10H16O  Number of carbon atoms = 1.0 × 1012 atoms…

Q: Why does knowing the mass of an object not help you identify what material the object is made from?

A: Mass is not always the same for objects made from same material.

Q: A reaction produces sodium chloride fro 8 grams of sodium and 8 grams of diatomic chlorine. What is…

A: The balanced reaction taking place is  2 Na + Cl2 ----> 2 NaCl Hence we can say 1 mole of Cl2…

Q: A chemist determined by measurements that 0.045 moles of nickel participated in a chemical reaction.…

A: Please find your solution below : Mole is a measure of amount of substance. It is the amount of…

Q: Based on the evidence, what metal are pennies mostly made of, and what metal are dimes mostly made…

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Q: 1. How many in2 are in 450cm2? For your answer enter the first 4 digits of your value.

A: Often while calculating, there is a need to convert units from one system to another system. The…

Q: A radioactive substance decays according to A = Age-0.0049, where Ao is the initial amount and it is…

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Q: 1. How many hydrogen atoms are in the compound (NH.).CO,?

A: This question belong to mole concept in physical chemistry. We have solved the problem by unitary…

Q: Which one of the following is the largest mass? A) 7.6 × 10ª mg B) 7.6 × 107 ng C) 7.6 × 10-2 kg D)…

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Q: 32 Which element does X represent in the following expression: X? 15 Enter the chemical symbol of…

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Q: An automobile gasoline tank hold 23KG of gasoline. When the gasoline burns 86KG of Oxygen is…

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Q: Calculate the mass of 3.83 moles of barium. Your answer should be rounded to significant figures and…

A: We know, The formula for the number of moles ---- Number of moles (n) = Mass of the substance(g)…

Q: uses 17.4 irks of magnesium in an experiment, what is this mass in grams? Hint: 1 gram= 8.15 irks.

A: Given: Mass of magnesium used in the experiment=17.4 irks The objective is to calculate the mass of…

Q: You must show calculations in to receive credit. 1. A 6.245 g sample of a hydrate has a mass loss of…

A: PART (1)Mass of the sample is 6.245g.Mass loss is 2.525g.Therefore,

Q: Calculate the volume of a sample of aluminum that has a mass of 43.000 g.

A: Mass of aluminum sample = 43.000 gWe need to calculate the volume of aluminum sample.

Q: A 1995 penny having a mass of 2.740 g is cut to expose the zinc and dropped into sulfuric acid.…

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Q: Carbon disulfide gas and oxygen gas react to form sulfur dioxide gas and carbon dioxide gas. What…

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Q: A 0.706 gram sample of copper is carried through the steps of this experiment. At the completion of…

A: Copper taken = 0.706 g  Copper recovered= 0.400 g

Q: What would you multiply "atoms of rubidium" by to get the units "grams of rubidium" ? (number)…

A: Conversation of atoms of rubidium to grams of rubidium is given below.

Q: In this experiment the mass of NaCl was measured indirectly only. Desgin an experiment procedure…

A: One way to directly measure the mass of NaCl would be to use a technique called gravimetric…

Q: 1. Identify each of the following as measurements of length, area, volume, mass, density, time, or…

A: Identify the given measurement if the following --

Q: What were the experimental errors that could have led to your percent error? Be specific.

A: The error in an experiment is calculated by taking the difference of the actual experimental value…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.