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How many 0.09 kg are in 90 g?
1.Convert to common units then can divide 90g by 0.09 kg:1 kg = 1000 g→ 0.09 kg = 0.09 x 1000 g= 90 g→ 90 g ÷ 0.09 kg = 90 g ÷ 90 g= 1.
Is 90 g lesser or more than 9 kg?
90 g is less than 9 kg
Subtract 3 kg 90 g from 4 kg 5 g?
3 g under the 4 kg then go over to the next side write 90 g under the 05 g that equals 915 g because you are not going to get 9 in it so don't think i did it wrong.
Subtract 3 kilogram 90 g from 4 kilogram 05 g?
4.05 kg - 3.09 kg = 0.96 kg (960 g)
How much heat is released when 12.4 g of steam at 100 degrees celsius condenses to water at 100 degrees celsius?
The latent heat of condensation of steam is 2260 Joules per gram (539.3 cals/g). So the amount of heat released by 12.4 g = 12.4*2260 Joules = 28,024 Joules or 6687 cals.
How many molecules are there in 39 grams of water?
Steam is just water. Water weighs the same per molecule regardless whether it is ice, water, or steam. That said, the molecular weight of water is right at 18 g/mole. So it seems that 9.0 grams of steam is about half a mole of water. Therefore we just divide avagrado's number by 2 and we get: 6.022 x 1023 / 2 = 3.011 x 1023 molecules
How many molecules are in 11.2 g Ar?
To find the number of molecules in 11.2 g of Ar, you need to use Avogadro's number and the molar mass of Ar. First, find the number of moles in 11.2 g using the molar mass of Ar (39.95 g/mol). Then, convert moles to molecules by multiplying by Avogadro's number (6.022 x 10^23 molecules/mol).
How many molecules are in .75 g of ammonia?
To find the number of molecules in 0.75 g of ammonia, we need to first calculate the number of moles using the molar mass of ammonia (17 g/mol). Then we can use Avogadro's number (6.022 x 10^23 molecules/mol) to convert moles to molecules. In this case, the number of molecules in 0.75 g of ammonia would be approximately 1.26 x 10^22 molecules.
How many molecules are in 334 g CBr4?
To calculate the number of molecules in 334 g of CBr4, you need to first convert the mass to moles using the molar mass of CBr4 (331.6 g/mol). Once you have the moles, you can then use Avogadro's number (6.022 x 10^23 molecules/mol) to find the number of molecules in 334 g of CBr4.
How many molecules are in 67.9 g N?
To find the number of molecules in 67.9 g of nitrogen (N), you first need to convert the mass (in grams) to moles using the molar mass of nitrogen (28.02 g/mol). Then, you can use Avogadro's number (6.022 x 10^23 molecules/mol) to calculate the number of molecules.
How many molecules are in 45 g of silver?
To determine the number of molecules in 45 g of silver, you first need to calculate the number of moles of silver using its molar mass (107.87 g/mol). Then, you can use Avogadro's number (6.022 x 10^23) to convert moles to molecules.
The number of grams of ice that can be melted by 1 g of 100 degree steam is what?
The specific heat of ice is 2.09 J/g°C and the heat of fusion of ice is 334 J/g. To find the number of grams of ice melted by 1 g of steam, we calculate the heat released by the steam when it condenses, and then divide that by the heat required to melt the ice. The calculation would be (2.09 * 100) + 334 = 544.9 J, so 1 g of steam can melt 1.63 g of ice.
How many molecules of CH2O are in 30.0 g of CH2O?
To find the number of molecules in 30.0 g of CH2O, you first need to calculate the number of moles of CH2O using its molar mass (12.01 g/mol for C, 1.01 g/mol for H, and 16.00 g/mol for O), and then use Avogadro's number (6.022 x 10^23) to convert moles to molecules.
How many molecules of N2O4 are in 76.3 g N2O4 The molar mass of N2O4 is 92.02 gmol?
To find the number of molecules in 76.3 g of N2O4, first calculate the number of moles of N2O4 in 76.3 g using its molar mass. Then, use Avogadro's number (6.022 x 10^23 molecules/mol) to find the number of molecules. So, 76.3 g / 92.02 g/mol = 0.829 moles. Finally, 0.829 moles x 6.022 x 10^23 molecules/mol = 4.99 x 10^23 molecules of N2O4.
What is the number of molecules of 140 g of CO?
To find the number of molecules in 140 g of CO (carbon monoxide), you first need to determine the number of moles of CO. The molar mass of CO is 28 g/mol. Divide the given mass by the molar mass to get the number of moles, then use Avogadro's number (6.022 x 10^23 molecules/mol) to convert moles to molecules.
What molecules contain 60g of alcohol and 60g of water?
Ethanol molar mass: 46,07 gWater molar mass: 18 gAvogadro number: 6,02214129.10 ex.2346,07 g--------------Avogadro number=number of molecules60 g------------------xx = 60 . A/46,07 = 7,842.10 ex.23 molecules of ethanol18 g--------------Avogadro number=number of molecules60 g------------------xx = 60 . A/18 = 20,074.10 ex.23 molecules
How many molecules are contained in a 4.30 g sample of dimethylmercury?
To determine the number of molecules in a 4.30 g sample of dimethylmercury (MM = 230.64 g/mol), you need to first calculate the number of moles using the formula: moles = mass / molar mass. Then, you can convert moles to molecules using Avogadro's number (6.022 x 10^23 molecules/mol). So, for dimethylmercury: moles = 4.30 g / 230.64 g/mol, then molecules = moles x 6.022 x 10^23.
