How many moles in 500 grams of radium?

Last Answer : The molar mass (mass of 1 mole) of MgCl2 is 95.205 g/mol. To determine the mass of 1.5 mol MgCl2, multiply the moles by the molar mass.Molar mass MgCl2 = (1 x 24.305 g/mol Mg) + (2 x 35.45 ... mol MgCl21.5 mol MgCl2 x (95.205 g MgCl2)/(1 mol MgCl2) = 150 g MgCl2 (rounded to two significant figures)

How many moles of sulfur are in 53.7 grams of sulfur?

Description : How many moles of sulfur are in 53.7 grams of sulfur?

Last Answer : 53,7 grams of sulfur is equivalent to 1,675 moles.

How many grams of sodium are in three moles of sodium carbonate?

Description : How many grams of sodium are in three moles of sodium carbonate?

Last Answer : The mass of sodium is 138 g.

How many moles of CH4 are contained in 96.0 grams of CH4 ?

Description : How many moles of CH4 are contained in 96.0 grams of CH4 ?

Last Answer : The molecular mass will be 12 + (1x4) because carbon's Atomic Mass is 12 and hydrogen's atomic mass is 1. That gives you a molecular mass for methane of 16. 1 mole of methane will be 16g All you need to do now is divide your 96.0 g of methane by 16g and you will get the number of moles you want.

How many moles of carbon are in 48 grams of carbon w) 4 x) 3 y) 2 z) 1

Description : How many moles of carbon are in 48 grams of carbon w) 4 x) 3 y) 2 z) 1

Last Answer : ANSWER: W -- 4

Normality is defined as the number of: w) moles of solute per 1000 grams of solvent x) equivalent weights of solute per liter of solution y) kilograms of solute per liter of solution z) moles of solute per 1000 grams of solution

Description : Normality is defined as the number of: w) moles of solute per 1000 grams of solvent x) equivalent weights of solute per liter of solution y) kilograms of solute per liter of solution z) moles of solute per 1000 grams of solution

Last Answer : ANSWER: X -- EQUIVALENT WEIGHTS OF SOLUTE PER LITER OF SOLUTION

What is the molarity of a salt solution prepared b dissolving three moles of salt in 500 milliliters of water? w) 1 x) 2 y) 4 z) 6

Description : What is the molarity of a salt solution prepared b dissolving three moles of salt in 500 milliliters of water? w) 1 x) 2 y) 4 z) 6

Last Answer : ANSWER: Z -- 6

Which is greater 1,500 centigrams or 1.5 grams?

Description : Which is greater 1,500 centigrams or 1.5 grams?

Last Answer : Or equal.

How many grams are in 4.500 li2O?

Description : How many grams are in 4.500 li2O?

Last Answer : Need answer

What is 500 newtons in grams?

Description : What is 500 newtons in grams?

Last Answer : 250g

What is 500 newtons in grams?

Description : What is 500 newtons in grams?

Last Answer : 250g

The heart of a normal adult human being weighs about _____ A. 200 grams B. 300 grams C. 400 grams D. 500 grams

Description : The heart of a normal adult human being weighs about _____ A. 200 grams B. 300 grams C. 400 grams D. 500 grams

Last Answer : ANSWER: B

A shopkeeper declares that he sells rice at the cost price. However he uses a weight of 425 grams. Instead of 500 grams, what is his percentage of profit? a) a) 16 5/6 b) 15 c) c) 20 7/23 d) 25 e) None of these

Description : A shopkeeper declares that he sells rice at the cost price. However he uses a weight of 425 grams. Instead of 500 grams, what is his percentage of profit? a) a) 16 5/6 b) 15 c) c) 20 7/23 d) 25 e) None of these

Last Answer : % profit = Loss/Actual Weight x 100 = 500 – 425/500 × 100 = 75/500 x 100 = 15% Answer: b)

Who discovered radium?

Description : Who discovered radium?

Last Answer : The Curies

Who discovered radium? -General Knowledge

Description : Who discovered radium? -General Knowledge

Last Answer : Radium was discovered by Marie Sklodowska-Curie and her husband Pierre Curie on 21 December 1898, in a uraninite (pitchblende) sample from Jáchymov. While studying the mineral earlier, the Curies removed uranium from it and found that the remaining material was still radioactive.

Who discovered radium ?

Description : Who discovered radium ?

Last Answer : Radium scientist Mary Curie discovered.

What is the signal of radium ?

Description : What is the signal of radium ?

Last Answer : Ra Radium signal

What is the symbol of radium ?

Description : What is the symbol of radium ?

Last Answer : The symbol of radium is Ra

In what year was radium discovered ?

Description : In what year was radium discovered ?

Last Answer : In 1899 , Pierre and Marie Curie discovered radium.

Who Discovered Radium ?

Last Answer : Discovered Radium (Madame Curie and Pierre Curie)

Who Discovered Radium ?

Last Answer : Madamkuri discovered radium.

Starting from radium, the radioactive disintegration process terminates when the following is obtained a)radon b)lead c)uranium d)thorium

Description : Starting from radium, the radioactive disintegration process terminates when the following is obtained a)radon b)lead c)uranium d)thorium

Last Answer : Starting from radium, the radioactive disintegration process terminates when the following is obtained a)radon b) ... . radon C. radium A D. radium B

If half life period of radium is 1600 years, its average life period will be:

Description : If half life period of radium is 1600 years, its average life period will be:

Last Answer : If half life period of radium is 1600 years, its average life period will be: A. 2304 years B. 4608 years C. 230.4 years D. 23040 years

Half life of radium is 1580 years. It remains 1/16 after the…..

Description : Half life of radium is 1580 years. It remains 1/16 after the…..

Last Answer : Half life of radium is 1580 years. It remains 1/16 after the….. A. 1580 years B. 3160 years C. 4740 years D. 6320 years

Radium is a radioactive substance. It dissolves in dilute `H_(2)SO_(4)` and forms a compound radium sulphate. The compound is a)No longer radioactive

Description : Radium is a radioactive substance. It dissolves in dilute `H_(2)SO_(4)` and forms a compound radium sulphate. The compound is a)No longer radioactive

Last Answer : Radium is a radioactive substance. It dissolves in dilute `H_(2)SO_(4)` and forms a compound ... content D. twice as radioactive as the radium content

What is Number of energy shells in radium?

Description : What is Number of energy shells in radium?

Last Answer : Need answer

What is the first decay product of radium?

Description : What is the first decay product of radium?

Last Answer : Feel Free to Answer

How many pages does Radium Girls have?

Description : How many pages does Radium Girls have?

Last Answer : Feel Free to Answer

If the nucleus of a radium-226 atom is unstable what causes the nucleus to spontaneously decay?

Description : If the nucleus of a radium-226 atom is unstable what causes the nucleus to spontaneously decay?

Last Answer : Instability is due to a certain ratio between neutrons and protons in the atomic nucleus.

Why is radium very costly?

Description : Why is radium very costly?

Last Answer : It is found in very small quantity

Neutrons are obtained by (a) Bombardment of radium with aparticles (b) Bombardment of beryllium with b-particles (c) Radioactive disintegration of uranium (d) None of the above

Description : Neutrons are obtained by (a) Bombardment of radium with aparticles (b) Bombardment of beryllium with b-particles (c) Radioactive disintegration of uranium (d) None of the above

Last Answer : Ans:(c)

Which of the following metals is in a liquid state at normal room temperature? (a) Sodium (b) Radium (c) Gallium (d) Silicon

Description : Which of the following metals is in a liquid state at normal room temperature? (a) Sodium (b) Radium (c) Gallium (d) Silicon

Last Answer : Ans:(c)

The beach sands of Kerala are rich in – (1) Calcium (2) Radium (3) Thorium (4) Manganese

Description : The beach sands of Kerala are rich in – (1) Calcium (2) Radium (3) Thorium (4) Manganese

Last Answer : (3) Thorium Explanation: The beach sand in Kerala contains one of the rich deposits of thorium in the world. Thorium, also known as the 'strategic nuclear fuel of India,' is a radioactive ... . The beach sands of Kerala in Palghat and guilon district contain the world's richest monazite deposits.

The chief raw material used for manufacturing Rayon is : (1) Nylon (2) Cellulose (3) Silicon (4) Radium and Argon

Description : The chief raw material used for manufacturing Rayon is : (1) Nylon (2) Cellulose (3) Silicon (4) Radium and Argon

Last Answer : (2) Cellulose Explanation: Rayon is a manufactured regenerated cellulose fiber. Because it is produced from naturally occurring polymers, it is neither a truly synthetic fiber nor a natural fiber; it is a semi-synthetic or artificial fiber.

Which of the following is used as a moderator in nuclear reactors? (1) Thorium (2) Graphite (3) Ordinary water (4) Radium

Description : Which of the following is used as a moderator in nuclear reactors? (1) Thorium (2) Graphite (3) Ordinary water (4) Radium

Last Answer : (2) Graphite Explanation: Graphite is used a moderator in nuclear reactors.

An element that does not occur in nature but can be produced artificially is – (1) thorium (2) radium (3) plutonium (4) uranium

Description : An element that does not occur in nature but can be produced artificially is – (1) thorium (2) radium (3) plutonium (4) uranium

Last Answer : (3) plutonium

Which of the following elements has the lowest melting point? (1) Sodium (2) Tin (3) Radon (4) Radium

Description : Which of the following elements has the lowest melting point? (1) Sodium (2) Tin (3) Radon (4) Radium

Last Answer : (3) Radon Explanation: Among the given elements, Radon has the lowest melting point of-71° Celsius. The melting point of other elements are as follows: Sodium: 98° C; Tin 232° C; Radium: 700°C

How many moles in 500 grams of radium?

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