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To find the number of molecules in 1.0 gram of H₂O, we first calculate the number of moles using the molar mass of water, which is approximately 18.02 g/mol. Dividing 1.0 g by 18.02 g/mol gives about 0.0555 moles of H₂O. Using Avogadro's number (approximately (6.022 \times 10^{23}) molecules/mol), we find that there are roughly (3.34 \times 10^{22}) molecules of H₂O in 1.0 gram.
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Calculate mass of 1.0010 24 molecules of water?
step 1; find # of moles 1.00*10^24 molecules x 1 mole of 6.02*10^23 molecules = 8.52*10^17 mole of H2O ( 1.0010*10^24 x 6.02*10^23 ) = 8.52*10^17 step 2 ; mass of H2O 8.52*10^17 mole x 18.02 grams per mole = 1.18*10^17 g H2O ( 8.52*10^17 x 18.02 ) = 1.18*10^17
How many molecules of CO2 are there in 18 grams?
First write out the equation and balance it. Then look at the ratio of C8H10 to CO2 produced in the reaction (hint: use molecular weights). For example: 2A = 1B + 1C where A =4, B=5, and C=3 so, for every 8g of A you get 5g of B 20g of B will yield 20 x 5/8 = 12.5g
How many oxygen atoms are present in a water sample containing 4.5 x 1023 hydrogen atoms?
You must mean; how many grams of O ( one atom oxygen ) 1.23 X 10^24 molecules H2O (1 mole H2O/6.022 X 10^23)(1 mole O/1 mole H2O)(16 grams/1 mole O) = 32.7 grams of oxygen
How many molecules are in 10 grams?
A mole of water is about 18 grams or 18 milliliters of water.A mole of water has 6.022 x 10^23 water molecules. And 10.0 grams of has 3.345 × 10^23 water molecules. And there are 3 total atoms in water molecules, which is H2O. (3.34 × 10^23)*3=1.006 × 10^24 Which means that 1x10^24 atoms are in 10.0 grams of water.
How many molecules are there in 122 grams of No2?
1.60 x 10^24 molecules
How many molecules are there in 200 grams of h2o?
200 grams H2O (1 mole H2O/18.016 grams)(6.022 X 1023/1 mole H2O) = 6.69 X 1024 molecules of water ======================
How many molecules are in 4.21 grams of water?
45 grams H20 x (1 mole H20/18 grams H2O) x (6.02E23 molecules H20/1 mole H2O) the grams H2O and moles H2O cancel out. When you punch it into your calculator, the answer comes out to: =1.505E24 molecules H2O
How many molecules are in 7.2g H2O?
Formula mass / Formula weight / Molecular mass / Molecular weight of H2O = (1*2) + 16 = 18g 1 mol of H2O = 18g H2O 1 mol of H2O = 6.023 * 10^23 molecules In 18g H2O there are 6.023 * 10^23 molecules. So, In 1g H2O there are (6.023 * 10^23) / 18 molecules = 3.346 * 10^22 molecules Therefore, In 7.3g H2O there are (3.346 * 10^22) * 7.3 molecules = 2.443 * 10^23 molecules Ans: 2.443 * 10^23 molecules
What is the number of molecules in 16.75 grams of H2O?
To calculate the number of molecules in 16.75 grams of H2O, we first need to convert grams to moles (using the molar mass of H2O), and then convert moles to molecules using Avogadro's number. The molar mass of H2O is 18.015 g/mol. After converting, there are approximately 3.52 x 10^23 molecules in 16.75 grams of H2O.
What is the mass in grams of 5.00 x 10 to the 2nd power water molecules?
The molar mass of H2O =(2 atoms H x 1.00794g/mol H) + (1 atom O x 15.9994g/mol O) = 18.0152g/mol H2O1 mole of H2O = 18.0152g H2O1 mole of H2O molecules = 6.022 x 1023 molecules H2OConvert molecules to moles.5.00 x 102g H2O molecules x (1mole H2O/6.022 x 1023 molecules H2O) =8.31 x 10-22 mole H2OConvert moles to grams.8.31 x 10-22 mole H2O x (18.0152g H2O/1mole H2O) = 1.50 x 10-20g H2OAnswer: The mass in grams of 5.00 x 102g H2O molecules = 1.50 x 10-20g H2O
What is the mass of 1.5E23 water molecules?
The molar mass of water is approximately 18 grams/mol. So, one water molecule has a mass of 18/6.022 x 10^23 grams. Therefore, the mass of 1.5 x 10^23 water molecules would be 18 x 1.5 x 10^23/6.022 x 10^23 grams.
How many moles are there in 235 grams of H2O?
For this you need the atomic (molecular) mass of H2O. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel. H2O=18.0 grams235 grams H2O / (18.0 grams) = 13.1 moles H2O
How many molecules of water are present in 36.0 g of H2O?
To find the number of molecules in 36.0 g of H2O, you first need to convert the grams to moles using the molar mass of water (18.015 g/mol). Then, use Avogadro's number (6.022 x 10^23 molecules/mol) to calculate the number of molecules.
How many grams are in 4 molecules of water?
The molar mass of water (H2O) is approximately 18 grams/mol. Therefore, for 4 molecules of water, the total mass would be 4 x 18 = 72 grams.
How many molecules are in 2.81g H2O?
To calculate the number of molecules in 2.81g of H2O, you first need to convert grams to moles using the molar mass of water (18.015 g/mol). Then, use Avogadro's number (6.022 x 10^23 molecules/mol) to convert moles to molecules. The calculation would be: 2.81g H2O / 18.015 g/mol = 0.156 moles H2O; 0.156 moles H2O x 6.022 x 10^23 molecules/mol = 9.40 x 10^22 molecules of H2O.
How many molecules of H2O are there in 1.0 g of H2O?
There are 3.34 x 10^22 molecules of H2O in 1.0 g of water.
What is the weight of 3.01 exponent 23 molecules of H2O?
The molar mass of water (H2O) is approximately 18 grams/mol. To find the weight of 3.01 x 10^23 molecules of water, you would multiply the molar mass by the number of molecules. Therefore, the weight of 3.01 x 10^23 molecules of water would be about 5.43 x 10^25 grams.
