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What is the half life of a radioisotope if a 100g sample becomes 50 g after 20 years?
20 years (APEX)
Can someone convert a recipe to moles?
450 g water 100g sugar 30g vinegar 2g salt for vinegar use2.4 g of acetic acid
What percentage of pure lemon juice contains water?
91.86 grams per 100g or 91.86%.
How many molecules are in 100g of H20?
To find the number of molecules in 100 grams of water (H₂O), first calculate the number of moles. The molar mass of water is approximately 18 g/mol, so 100 g of water is about 5.56 moles (100 g ÷ 18 g/mol). Since one mole contains Avogadro's number of molecules (approximately (6.022 \times 10^{23})), the total number of molecules in 100 g of H₂O is approximately (3.34 \times 10^{24}) molecules (5.56 moles × (6.022 \times 10^{23}) molecules/mole).
What will be the molarity for a solution prepared by dissolving a 10 grams compound with a molecular mass of 100 in 1 L of water?
The first step is to calculate the number of moles of the compound using the formula: moles = mass / molar mass. In this case, moles = 10 g / 100 g/mol = 0.1 moles. The molarity is then calculated by dividing the number of moles by the volume of solution in liters, so the molarity is 0.1 moles / 1 L = 0.1 M.
How many moles of carbon are present in a 100g sample?
To calculate the number of moles of carbon in a 100g sample, you need to know the molar mass of carbon. The molar mass of carbon is 12 g/mol. Therefore, in a 100g sample, there would be 100g / 12 g/mol = 8.33 moles of carbon.
How many mols in 100g of KMnO4?
0.006327754
How many moles are in 100g of KMnO4?
1 mol = 118.94 1 mol / 118.94 = 1.70 / x G = 202.10g
What contains more sugar 100g of grapes or 100g of of chocolate?
yes it does
How many calories contains 100g of french fries?
275
What is the mass of 100g of ga?
the atomic mass of gallium is approximately 69.72 g/mol therefore the mass of 100 grams of gallium would be 100g divided by 69.72g/mol which gives us approximately 1.43 moles
What compound contains 24.19 Cu 27.05 Cl and 48.76 oxygen?
CuCl19O73 Think about it as 100g. Therefore 24.19g of Cu, 27.05 g of Cl 48.76 g of O moles = mass/RAM Therefore moles of Cu = 24.19/29 = 0.834 Moles of Cl = 27.05/17 = 1.59 Moles of O = 48.76/8 = 6.095 To make biggest one a whole number, multiply by 12, and you get 1,19,73 Therefore CuCl19O73
A compound is 80.0 carbon and 20.0 hydrogen by mass Assume a 100g sample of this compound How many grams of each element are in this sample?
Mass of C= 80.0 g Mass of H =20.0 g
What is the half life of a radioisotope if a 100g sample becomes 50 g after 20 years?
20 years (APEX)
Does lettuce have fiber?
Lettuce contains around 0.5g of fibre per 100g
How many calories in one rasgulla?
A 100g serving of rasgulla contains 186 calories.
What is the half life of a radioisotope if a 100g sample becomes 25g after 18 years?
The half-life of the radioisotope is 9 years. This is calculated by determining the time it took for half of the original sample to decay. Since the sample went from 100g to 25g in 18 years, it lost 75g in that time period. After the first half-life, the sample would have 50g remaining, and after the second half-life, it would have 25g remaining.
