0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is the chemical formula of selenium tetrafluoride?
Selenium tetrafluoride is SeF4
How many moles are in 56 micrograms of selenium?
The molecular mass of selenium is 78.96g/mol. You need to convert micrograms to grams. i.e. 56/1,000,000 is 0.000056 grams. 0.000056/78.96 is 0.00000071 moles.
What is the molarity of a 5ml solution containing 0.7 micrograms of selenium?
The answer is1.77 * 10-6 M.Solution:.7 ug * (1 g \ 106 ug) This converts our value from micrograms (ug) to grams (g).* (1 mole Selenium \ 78.96 g Selenium) This gives out our # of moles Selenium by using Selenium's molar mass (78.96 g/mol).= 8.87 * 10-9 moles SeleniumDivided by the volume in liters (.005 L)= 1.77 * 10-6 moles Selenium \ 1 L (M)Check:.005 L * (1.77 * 10-6 moles Selenium\ 1 L)= .00000177 moles Selenium* (78.96 g Selenium \ 1 mole Selenium)* (106 ug \ 1 g)~= .7 ug.- Mike
What is the hybridization of selenium Tetrafluoride?
sp3d. For each energy level (s,p,d,f) there are a certain amount of atoms in that section. S has 2. Divide it by two, you get one. P has 6. Divide it by 2, you get 3, and so on. Because selenium tetrafluoride has 5 things around it (four fluorides and a lone pair), it will go up to 5, which is sp3d.
How many molecules of sulfur tetrafluoride are present in 2.13 moles of this compound?
There are 1.28x10^24 molecules of SF4. 2.13 mol * 6.022x10^23 molecules/mol = 1.28x10^24 molecules.
What is the chemical formula of selenium tetrafluoride?
Selenium tetrafluoride is SeF4
What is the name of the compound SeF4?
Selenium Tetrafluoride
How many moles are in 56 micrograms of selenium?
The molecular mass of selenium is 78.96g/mol. You need to convert micrograms to grams. i.e. 56/1,000,000 is 0.000056 grams. 0.000056/78.96 is 0.00000071 moles.
How many ATOMS of carbon are present in 3.27 moles of carbon tetrafluoride?
Since there is one carbon atom per mole in carbon tetrafluoride, the answer is 3.27 times Avogadro's Number or about 1.97 X 1024 atoms.
What is the molarity of a 5ml solution containing 0.7 micrograms of selenium?
The answer is1.77 * 10-6 M.Solution:.7 ug * (1 g \ 106 ug) This converts our value from micrograms (ug) to grams (g).* (1 mole Selenium \ 78.96 g Selenium) This gives out our # of moles Selenium by using Selenium's molar mass (78.96 g/mol).= 8.87 * 10-9 moles SeleniumDivided by the volume in liters (.005 L)= 1.77 * 10-6 moles Selenium \ 1 L (M)Check:.005 L * (1.77 * 10-6 moles Selenium\ 1 L)= .00000177 moles Selenium* (78.96 g Selenium \ 1 mole Selenium)* (106 ug \ 1 g)~= .7 ug.- Mike
What is the hybridization of selenium Tetrafluoride?
sp3d. For each energy level (s,p,d,f) there are a certain amount of atoms in that section. S has 2. Divide it by two, you get one. P has 6. Divide it by 2, you get 3, and so on. Because selenium tetrafluoride has 5 things around it (four fluorides and a lone pair), it will go up to 5, which is sp3d.
How many molecules of sulfur tetrafluoride are present in 2.13 moles of this compound?
There are 1.28x10^24 molecules of SF4. 2.13 mol * 6.022x10^23 molecules/mol = 1.28x10^24 molecules.
A compound containing selenium and fluorine is decomposed in the laboratory and produces 2.231 of selenium and 3.221 of fluorinCalculate the empirical formula of the compound e?
The answer is SeF6.This is figured by:2.231 grams of Se divided by 78.79 g/mol = 0.0283 moles of Se3.221 grams of F divided by 18.998 g/mol = 0.1695 moles of F0.1695 moles of Se/0.0283 moles of F = 5.9909 ~ 6 moles of Se/mole of FSo SeF6
How many atoms of carbon are present in a molecule of carbon tetrafluoride?
A carbon tetrafluoride molecule has one carbon atom and four fluorine atoms.
What is silicon tetrafluoride formula?
The silicon tetrafluoride formula is SiF4.
How many ATOMS of nitrogen are present in 4.19 moles of dinitrogen tetrafluoride?
The chemical name dinitrogen tetrafluoride establishes that each molecule contains exactly 2 nitrogen atoms. A mole always contains Avogadro's Number of molecules. Therefore, the required answer is 4.19 X 2 X Avogadro's Number, or 5.05 X 1024 atoms, to the justified number of significant digits.
What is selenium in?
selenium is inside many foods ,soil, and glass
