The oxygen saturation of a lake is found by dividing the amount of dissolved oxygen the lake water currently hasper liter by the dissolved oxygen capacity per liter of the water, and then converting that number into a percent. If the lake currently has 7.4 milligrams of dissolved oxygen per liter of water and the dissolved oxygen capacityis 9.4 milligrams per liter, what is the oxygen saturation level of the lake, to the nearest percent? Please help me with this one ;(

Answers

Answer 1

Answer: $(7.4)/(9.4)*100\%= (7.4*100)/(9.4)\%= (740)/(9.4)\%\approx78.72\%\approx79\%$

Answer 2

Answer:

Final answer:

To find the oxygen saturation level of the lake, divide the amount of dissolved oxygen in the lake's water per liter (7.4 mg/L) by the water's dissolved oxygen capacity per liter (9.4 mg/L) to get the proportion. Multiply this by 100 to convert it into a percentage (78.72%), which rounds to 79% saturation.

Explanation:

To calculate the oxygen saturation of the lake, we divide the amount of dissolved oxygen the lake water currently has per liter by the dissolved oxygen capacity per liter of the water, and then we convert that number to a percentage.

Here are the steps to solve this problem:

First, divide the amount of dissolved oxygen the water currently has (7.4 milligrams per liter) by the dissolved oxygen capacity (9.4 milligrams per liter). This will give you the proportion of oxygen in the water. This step is a simple division: 7.4 ÷ 9.4 = 0.7872 (rounded to the nearest four decimal places).
Next, multiply the result by 100 to convert the proportion into a percentage. This step is 0.7872 x 100 = 78.72% (rounded to the nearest hundredth).
However, your question asks to round to the nearest percent, so the final answer would be 79% when rounded to the nearest percent. Thus, the oxygen saturation level of the lake is 79%.
Note that this oxygen saturation is important to many aquatic organisms that need oxygen from the water to survive.

Learn more about Oxygen Saturation here:

brainly.com/question/30550270

#SPJ12

Related Questions

Which particle diagram represents a sample of matter that can not be broken down by chemical means?
The isotope 65Cu2+ has how many electrons and how many protons?
Which change occurs when a barium atom loses two electrons?(1) It becomes a negative ion and its radius decreases.(2) It becomes a negative ion and its radius increases.(3) It becomes a positive ion and its radius decreases.(4) It becomes a positive ion and its radius increases.
A lack of sewage structures in overcrowded cities may lead to __________.a. a higher carrying capacityb. larger urban heat islandsc. poor public healthd. a greater support capacity
Which of these processes indicates that smelting copper is a chemical changea)it involves melting copper to form liquid metal b)it involves heating charcoal to high tempuratures c)it involves drawing copper into long wires d)it involves breaking molecular bonds between copper compounds

Which of these pairs of elements have the same number of valence electrons phosphorus (P) and chlorine (Cl)
beryllium (Be) and calcium (Ca)
chlorine (Cl) and helium (He)
oxygen (O) and carbon (C)

Answers

Beryllium (Be) and Calcium (Ca)

What coefficients must be added to balance the following reaction __Sn+___H3PO4___=H2+___Sn3(PO4)4

Answers

answer 3Sn+ 4H3pO4= 6H2+Sn(PO)4

1 Sn 3 Sn
3 H 2 H
1 P 4 P
4 O 16 O
then you have to make the numbers the same for each side

so you get by putting the 3 infront of Sn 4 infront of the H3PO4 and 6 infront of the H2
3 Sn 3 Sn
12 H 12 H
4 P 4 P
16 O 16 O

It is possible for the mass of the reactants to be greater than the mass of the products during _________.a. phase changes
b. fusion reactions
c. fission reactions
d. physical reactions E. chemical reactions

Answers

The correct answer is B. It is possible for the mass of the reactants to be greater than the mass of the products during fusion reactions. The mass of the products is less than the mass of the reactants because some of the mass has been converted to energy. Fusion reaction happens when two or more nuclei combine or collide to form an element with a higher atomic number. In this process, some of the matter of the fusing nuclei is converted to energy.

Which change in oxidation number indicates oxidation?(1) –1 to +2 (3) +2 to –3
(2) –1 to –2 (4) +3 to +2

Answers

The change that shows an oxidation is the change –1 to +2.

What is oxidation?

The term oxidation has to do with an increase in oxidation number. This increase will always be positive.

Hence, we have to look out for the change in which there is an increase in oxidation number and this occurs for the change –1 to +2.

Learn more about oxidation:brainly.com/question/13110055?

#SPJ2

Oxidation is the loss of electrons (OILRIG, oxidation is loss, reduction is gain), so that would mean a gain in charge (Well from negative to positive). The only one to show charge going up is (1)

Which of the following is another term for glucose? 1) Dextrose, 2) Sucrose, 3) Carbohydrate, 4) Table 5) Sugar.

Answers

Another term for glucose is "sugar." Glucose is a type of sugar that circulates in the bloodstream and serves as a primary source of energy for cells in the body.

At which temperature and pressure would a sample of helium behave most like an ideal gas?

Answers

The Helium gas tends to behave as an ideal gas at 0 $\rm ^\circ C$ temperature and 1 atm pressure.

By applying the real gas law to the gases at the high temperature,m the gases start to behave as the ideal gas.

The gas behaves at the ideal gas when the van der wall force between the gases has been the lowest and they tend to react less with the other atoms.

The Helium gas has the maximum tendency to behave as an ideal gas, as it has been the single atomic gas. Being single atomic, the gas tends to exhibit less forces, and the complete octet helps the gas to reactless with the other atoms.

Because of the characteristics, Helium acts as an ideal gas at STP.

Thus the Helium gas tends to behave as an ideal gas at 0 $\rm ^\circ C$ temperature and 1 atm pressure.

For more information about the ideal gas, refer to the link:

brainly.com/question/8711877

Other Questions

The combustion of 1 mole of CO according to the reaction CO(g) + ½O2(g) → CO2(g) + 67.6 kcal gives off how much heat?-67.6 kcal -1,514 kcal -33.3 kcal -135.2 kcal -none of the above

What quantity can be calculated for a solid compound, given only the formula of the compound and the periodic table of elements

Which of the following chemical symbols represents the element silver?A. SB. AgC. AuD. Si

When 5 grams of KCl are dissolved in 50. grams of water at 25°C, the resulting mixture can be described as(1) heterogeneous and unsaturated(2) heterogeneous and supersaturated(3) homogeneous and unsaturated(4) homogeneous and supersaturated