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The molecular weight(M) of chalk(CaCO3) = (40+12+48)g/mol =100g/mol
and teaspoon (m)= 4.93g
We know, n=m/M
So, n= (4.93/100) mol = .0493 mol
To find out number of molecules we use, N= n x NA equation.
N= .0493 mol x 6.02 x 1023 molecules/mol
=2.968 x 1022 molecules
Therefore, there are 2.968 x 1022 molecules in a teaspoon of chalk.
What else can I help you with?
How do you calculate number of moles in 1 teaspoon of salt?
First weigh the salt, preferably in grams. To finish the question let pretend it weighed 2g. Next calculate the molar mass of salt (NaCl). Na = 22.98976928 g/mol plus Cl = 35.45 g/mol so NaCl = 58.43976928 g/mol. If 58.43976928 is 1 mol, 2 g is: 2/58.43976928 = 0,034 moles.
How many moles in 0.75 moles of ammonia?
this is a easy one. There are only 0.04166 moles.
How many moles of water are there in 1.792 L?
95,474 moles
How many moles are in 3.3 moles of K2S?
3.3 moles of K2S 3.3 moles of S-2 6.6 moles of K+1
How many moles in 2.8mol CH4?
2,8 moles is of course equivalent to 2,8 moles !Probable is a spelling error in your question.
How many moles are in a teaspoon of baking soda?
1 cup = 48 teaspoons 1 teaspoon = 0.02 cup
How do i set up the equation for this question on the moles of chalk lab. how many pieces of chalk would you need to have a mole of chalk?
To set up the equation for the moles of chalk, you first need to determine the molar mass of the main component of chalk, which is calcium carbonate (CaCO₃). The molar mass is approximately 100.09 g/mol. Then, find the mass of a single piece of chalk, and divide the molar mass by that mass to calculate how many pieces of chalk are needed to equal one mole. The equation can be expressed as: Number of pieces = (100.09 g/mol) / (mass of one piece of chalk in grams).
How do you calculate number of moles in 1 teaspoon of sodium sulphide?
To calculate the number of moles in 1 teaspoon of sodium sulfide (Na₂S), you first need to know the mass of sodium sulfide in that teaspoon. Typically, a teaspoon holds about 5 grams of a substance, but this can vary based on the density of the compound. Once you have the mass, you can use the molar mass of Na₂S (approximately 78.04 g/mol) to find the number of moles by using the formula: moles = mass (g) / molar mass (g/mol). For example, if 1 teaspoon is 5 grams, then moles of Na₂S = 5 g / 78.04 g/mol ≈ 0.064 moles.
How many ml are in teaspoon?
There are 5ml in a teaspoon.
How many teaspoon is in 1 teaspoon?
7
How many calories in teaspoon jam?
how many kilojoules in a teaspoon of jam
How many syllables does the word 'chalk' have?
Chalk has 1 syllable
How do you calculate number of moles in 1 teaspoon of salt?
First weigh the salt, preferably in grams. To finish the question let pretend it weighed 2g. Next calculate the molar mass of salt (NaCl). Na = 22.98976928 g/mol plus Cl = 35.45 g/mol so NaCl = 58.43976928 g/mol. If 58.43976928 is 1 mol, 2 g is: 2/58.43976928 = 0,034 moles.
How many milliliters are there in a teaspoon?
There are 5 ml in a teaspoon.
How many cc's in teaspoon?
5 cc in a teaspoon
How many teaspoon are in 5oz milliliters?
That is 1 teaspoon.
How many quarts in a teaspoon?
There is 0.005 quart in a teaspoon.
