**Contents**show

## How many moles are in 25 grams of phosphorus?

**0.352 moles** of phosphorus atoms are present in this quantity.

## How many moles are in 17.7 g of KMnO4?

Mole practice

Question | Answer |
---|---|

12)Find the formula mass of KMnO4 | 158.00 g/mol |

13)Find the formula mass of Mg3(PO4)2 | 262.79 g/mol |

14)Find the molecular mass of C12H22O11 | 342.23 g/mol |

15) How many moles are in 17.7 g of KMnO4? | 0.112 mol KMnO4 |

## How many moles are in 25 grams of hydrogen?

1 Expert Answer

Hydrogen has an atomic weight of 1; and oxygen has an atomic weight of 16 (check the periodic table for the atomic weights). So, one mole of water has a mass of 16 +1+1 = 18 grams. So, if one mole has a mass of 18 grams, 25 grams would have a mass of 25 grams/ 18 grams per mole or **1.39 moles**.

## How many moles are in 28g of co2?

Complete answer:

The molecular weight of a material is required to tell an individual how many grams there are in one mole of that chemical substance i.e. molecular weight of any substance contains 1 mole of that substance. Then 28 g of $C{{O}_{2}}$ contains = **0.636 moles** of $C{{O}_{2}}$.

## How many moles are in phosphorus?

[NOTE: If you only wanted the molar mass of single atoms of phosphorous, then m=**30.97gmol** ; That is a mole of isolated phosphorous atoms would weigh 30.97 grams.]

## How many moles are 1.29 x10 25 atoms of phosphorus?

Mole Conversions

Question | Answer |
---|---|

How many moles are in 1.20 X 10^25 atoms of phosphorus? | 19.93 moles |

How many atoms are in 0.750 moles of Zinc? | 4.515 X 10^23 |

How many molecules are in 0.400 moles of dinitrogen pentoxide? | 2.408 X 10^23 |

How many molecules are in 5.5 moles of calcium? | 3.31 X 10^24 |

## How many moles are in KMnO4?

Explanation: And moles of potassium permanganate = **23.7⋅g158.03⋅g⋅mol−1 ≅16⋅mol** . How many moles of oxygen atoms does this represent?

## What is 25 grams in moles?

Hence, **1.38 moles** (mol) are present in 25 grams of water.

## How many moles are in 20g of hydrogen?

20 g of hydrogen gas is **10 moles** of H2 which is 20 moles of H atoms. 100g of a substance that is 2% by mass hydrogen has 2 g of Hydrogen which is 2 moles.

## How many moles of hydrogen are in 25 moles of water?

Answer: There are **2.77 moles** of hydrogen in 25 g of water.