# What is the density of seawater?

## What is the density of seawater?

Density of seawater and pressure

depth (m) | pressure (decibars) | density (g/cm3) |
---|---|---|

0 | 0 | 1.02813 |

1,000 | 1,000 | 1.03285 |

2,000 | 2,000 | 1.03747 |

4,000 | 4,000 | 1.04640 |

**What is the molar mass of seawater?**

The mean molecular weight of pure water over the range 0–40 °C is 86.1–80.7 and 89.4–84.5 for seawater.

**What is the density of ocean water kg m3?**

1026 kg/m3

Since fresh water weighs about 1000 kilograms per cubic meter and seawater weighs about 1.026 times that, we say that the typical seawater density is 1026 kg/m3.

### What is the density of seawater in LB ft3?

65 lb/ft3

65 lb/ft3 or 8.68 lb/gal (1.04 g/cc).

**What kind of seawater is densest?**

The densest ocean water is formed in two primary locations near the poles, where the water is very cold and highly saline as a result of ice formation. The densest deep water mass is formed in the Weddell Sea of Antarctica, and becomes the Antarctic Bottom Water (AABW).

**What is the density of saltwater in g cm3?**

1.03 g/cm3

Density refers to the amount of mass per unit volume, such as grams per cubic centimeter (g/cm3). The density of fresh water is 1 g/cm3 at 4o C (see section 5.1), but the addition of salts and other dissolved substances increases surface seawater density to between 1.02 and 1.03 g/cm3.

## What is the concentration of salt in seawater?

about 35 parts per thousand

The concentration of salt in seawater (its salinity) is about 35 parts per thousand; in other words, about 3.5% of the weight of seawater comes from the dissolved salts.

**How do you find the density of seawater from temperature and salinity?**

It can be approximated as: ΔDensity = α*ΔT+β*ΔS α and β are coefficients of thermal expansion and saline contraction. α is roughly 0.2 kg m-3 °C-1 β is roughly 1 kg m-3 psu-1 These values are where the 15°C and 3 psu come from. In the ocean, α and β also depend on salinity, temperature, and pressure.

**What is the density of saltwater vs freshwater?**

Average density at the surface is 1.025 kg/l. Seawater is denser than both fresh water and pure water (density 1.0 kg/l at 4 °C (39 °F)) because the dissolved salts increase the mass by a larger proportion than the volume.

### Is lb ft3 a density?

“lb/ft3″ simply means “pounds per cubic foot”, and it means density. “Pounds” used to be mass. But now it is a measure of force, and the “slug” is a measure of mass.

**What is the density of seawater in PPG?**

The density in pounds per gallon, or PPG, for average seawater is 8.68 lb/gal or 1.04 g/mL which is standard temperature and pressure.