there are 4.5 moles
It is a solution whose strength and quantity are given .
To calculate the number of grams in 2.50 moles of H2O, you first need to know the molar mass of water (H2O), which is approximately 18.015 g/mol. Then, you can use the formula: grams = moles x molar mass. So, 2.50 moles of H2O is equivalent to 45.04 grams (2.50 moles x 18.015 g/mol).
The chemical equation for the combustion of glucose is C6H12O6 + 6O2 -> 6CO2 + 6H2O. From this, we can see that 1 mole of glucose produces 6 moles of CO2. Therefore, 45 grams of glucose (which is approximately 0.25 moles) would produce 6 times that amount of CO2, which is about 90 grams.
Using Henry's law, the number of moles of oxygen that will dissolve is calculated by multiplying Henry's constant by the partial pressure of oxygen and the volume of water. So, moles of oxygen = 0.0013 mol L ATM * 0.21 ATM * 45 L = 0.1233 mol of oxygen will dissolve in 45 L of water at 20C.
The balanced chemical equation for the combustion of glucose (C6H12O6) is: C6H12O6 + 6O2 -> 6CO2 + 6H2O. From the equation, we can see that 1 mol of C6H12O6 produces 6 mol of CO2. First, calculate the number of moles of C6H12O6 in 45 g. Then use the mole ratio to find the moles of CO2 produced, and finally convert that to grams.
Sodium fluoride is approximately 45% sodium by weight.
Pure NaF (sodium fluoride,not flouride)contains 45.23% fluorine by weight.
45/94.2 is 0.4777 moles
45 mg contains approximately 1.956 moles of atomic sodium.
It is a solution whose strength and quantity are given .
The moles number of water 12; the chemical formula is KAl(SO4)2.12H2O.
To convert milliequivalents (mEq) of sodium to milligrams (mg), you need to know the atomic weight of sodium. The atomic weight of sodium is approximately 23 g/mol. So, to convert 45 mEq of sodium to mg, you would multiply 45 mEq by the atomic weight (23 g/mol) to get 1035 mg.
To calculate the number of moles of insulin needed, you can use the formula: moles = Molarity × Volume (in liters). In this case, 0.0052 mol/L × 0.045 L = 0.000234 moles of insulin are required to make up a 45 ml solution.
stp= 22.4 dm3, 1L = 1 dm3 1mole ---> 22.4dm3 xmole ---> 45dm3 45/22.4 = 2.001 moles
The molecular mass of fluorine gas, F2 is 2(19.0) = 38.0Amount of F2 = mass of sample/molar mass = 9.5/38.0 = 0.25mol There are 0.25 moles of fluorine in a 9.5g pure sample.
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.
A 12-ounce can of Coke contains about 45 milligrams of sodium.