**Contents**show

## How many moles are in Hf?

1 mole of HF is approximately equal to 20 g. So there are 60 g of HF in 3 moles of HF.

## How many moles are in a gram of HF?

The symbol for hafnium is Hf, and the symbol for grams is g. Therefore, 7.22 moles of hafnium to grams is the same as 7.22 moles of Hf to grams, 7.22 moles of hafnium to g, and 7.22 moles of Hf to g. Furthermore, the atomic mass of hafnium is 178.49.

## How many moles are in 3 grams of HF?

There are 60.03 grams of HF in 3 moles of HF.

## How many atoms are in 24 moles of HF?

Mole practice

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

1) What is a mole? | 6.02×10^23 particles of anything |

2) 1 mole = __________ atoms | 6.02×10^23 atoms |

3) 1 mol of zn = ____ mole of Au | 1 mole |

4) How many moles are in 1.29 x 10^24 molecules of HF? | 2.14 moles H atoms |

## How many moles is 25 grams of water?

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

## How many grams are in 2 moles of HF?

Explanation: Normally 1 mole of F2 reacts with 1 mole of H2 giving 2 moles of HF (which is 20g).

## What’s the molar mass of HF?

The symbol for hafnium is Hf, and the symbol for grams is g. Therefore, 5 moles of hafnium to grams is the same as 5 moles of Hf to grams, 5 moles of hafnium to g, and 5 moles of Hf to g. Furthermore, the atomic mass of hafnium is 178.49. That means that one mole of hafnium weighs 178.49 grams (178.49 g/mol).

## What is the mass of 1 mole of mgso4?

Therefore there are 3.0×1024 3.0 × 10 24 oxygen atoms.

## What is the theoretical yield of HF?

This is our theoretical yield of HF, when starting with 6.00 kg of CaF_{2}. Our actual yield was 2.86 kg.

## 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 mol are 4.52 x10 24 molecules H2O?

4.65×1024⋅NO2⋅molecules6.022×1023⋅NO2⋅molecules⋅mol−1=7.72⋅mol …