## What unit is used to measure a lake?

Basic units of water measurement For water that is in motion, cubic feet per second (cfs) is the unit of measure. For water that is stored or impounded, the acre-foot (af) is how water is measured.

## How do you measure a lake?

The length of a lake is measured as the longest straight-line shoreline-to-shoreline distance across a lake. Often, the length is an important factor regulating the local weather climate. Winds can pick up speed over open water, which is much smoother than the surrounding landscape.

## How many moles are in 1.2 grams of HCl?

The answer is 36.46094. We assume you are converting between grams HCl and mole. You can view more details on each measurement unit: molecular weight of HCl or mol This compound is also known as Hydrochloric Acid. The SI base unit for amount of substance is the mole.

## Is H2 one or two moles?

H2 – There are 2 moles of hydrogen atoms (1 mole of elemental hydrogen).

2.01588 grams

## What is H2 called?

molecular hydrogen

## How many atoms are in a mole of copper?

Concept 2. The relation between molecular (formula) mass and molar mass Page 4 4 • To obtain one mole of copper atoms (6.02 x 1023 atoms), weigh out 63.55 g copper. The molar mass (M) of a substance is the mass of one mole of entities (atoms, molecules, or formula units) of the substance.

## How many atoms are present in 150 grams of copper?

therefore mass of 13.05 gram of Cu = 6.022*10^23 * 13.05 / 63.5 = 1.22 * 10^23 atoms ANS….

## What is the mole of copper?

From your Periodic Table we learn that one mole of copper, 6.022×1023 individual copper atoms have a mass of 63.55⋅g . And thus we use the MASS of a chemical sample to calculate the NUMBER of atoms and molecules.

## How many molecules are there in one mole of co2?

Let’s consider the carbon dioxide molecule. We know it has the formula CO2, and this tells us that: 1 mole carbon dioxide contains 6.02 x 1023 molecules.

44.01 g/mol

## How many molecules are in 2 moles of CO2?

Thus, if we have 1 mole of a molecule present, we have 6.022*10^23 of those molecules present. If we have 2 moles of a molecule present, we have 2*1.022*10^23 of that molecule present etc.

## How many molecules are in 2.8 moles of CO2?

Answer. Number of moles of CO2= 2.8/44 = 0.06. Number of molecules = number of moles * Avagadro number.