How many grams of oxygen are in 3.00 mol of NaNO3?

Answers

Answer 1

Answer: Molar mass of NaNO3 = 84.99 g/mol

1 mol NaNO₃ --------- 84.99 g
3.00 mol NaNO₃ ----- ?

Mass = 3.00 * 84.99 / 1

= 254.97 g of NaNO₃

Related Questions

When the blood supply to a portion of the brain is blocked, this causesa. a. blackout b. dizzy spells c. stroke d. heart attack
Based on bond type, which compound has thehighest melting point? (1) CH3OH (3) CaCl2 (2) C6H14 (4) CCl4
Given the formula:The bond between which two atoms has the greatest degree of polarity? A. C and C B. C and O C. H and C D. H and O
Which balanced equation represents a chemical change?(1) H2O(l) + energy → H2O(g)(2) 2H2O(l) + energy → 2H2(g) + O2(g)(3) H2O(l) → H2O(s) + energy(4) H2O(g) → H2O(l) + energy
From where does the nitrogen in the nitrogen cycle originate?a. root nodules of legumes b. the atmosphere c. decomposers d. nitrifying bacteria

Ice is _______ dense than water.more

less

equally as

twice as

Answers

Ice is less dense than water. The orientation of hydrogens are further apart from each other.

Answer:

Ice is Less Dense than water

Explanation:

If you put ice in water the ice won't sink to the bottom because water is denser then ice.

Which of the following materials is useful for making molds because it has a low melting point?A. wood
B. metal
C. clay
D. wax

Answers

Molds are created to achieve aspecific design of a material. These materials either came from a process ofhaving a higher or lower temperature. Therefore, the molder must have thermalresistant properties. Low melting points means that the material to be shapedcame from a cooler process. Wood and metal have higher thermal conductivity andtherefore can easily be cooled. The wax can turn really hard and can beunbreakable when present in colder materials due to the lipids present in it. Clayhowever can become a mold because of its low melting point.

The right answer is wax.

The waxes are of synthetic, natural, animal or plant origin composed of long and branched chains which gives them a microcrystalline structure. This results in a soft, white, non-translucent substance whose melting temperature is arround 70 ° C.

The melt temperature of the clay exceeds 1000 ° C.

It is clear that wood and metal are not used for low temperature molding.

We can also use the equation for enthalpy change for physical phase changes. Consider the phase change H2O(l) → H2O(g). Calculate ΔHrxn.Use ΔHf values from the table above.

ΔHrxn = _____

Answers

Answer: The value of enthalpy of the given reaction is 44.000 kJ/mol , that is energy is supplied to water to change into water vapors

Explanation:

$H_2O(l)\rightarrow H_2O(g),\Delta H_(rxn)=?$

Enthalpy of formation of water in liquid state, $\Delta H_(f,H_2O(l))=-285.820 kJ/mol$

Enthalpy of formation of water in gaseous state, $\Delta H_(f,H_2O(g))=-241.820 kJ/mol$

$\Delta H_(rxn)=\sum \Delta H_f \text{of products}-\sum \Delta H_f \text{of reactants}$

$\Delta H_(rxn)=(-241.820 kJ/mol)-(-285.820 kJ/mol)=44.000 kJ/mol$

The value of enthalpy of the given reaction is 44.000 kJ/mol, that is energy is supplied to water to change into water vapors.

Standard molar enthalpy:
H2O ( liquid water ) : - 285.8 KJ/mole
H2O ( water vapor ) : - 241.8 KJ / mole.
ΔHrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0
Answer: B ) 44.0 KJ

What is the median of the following set: 2, 4, 6, 8, and 10?

Answers

Final answer:

The median of the set of numbers 2, 4, 6, 8, and 10 is 6 because the median is the middle number in a sorted, ascending or descending, sequence of numbers.

Explanation:

In the field of statistics, the median is the middle value in a set of data that has been arranged in ascending order. If the total number of data values is odd, the median is the middle value. When the count of data values is even, the median is computed as the average of the two middle values. The given data set is 2, 4, 6, 8, 10. Since this is an odd set of numbers, we set the number in the middle as the median. Thus, the median value here is 6.

Learn more about Median here:

brainly.com/question/28060453

#SPJ12

The process by which dissolved gases are exchanged between the blood and interstitial fluids is

Answers

Diffusion is the process by which dissolved gases are exchanged between the blood and interstitial fluids.

What causes the exchange?

Diffusion

The process by which dissolved gases are exchanged between the blood and interstitial fluids is called diffusion because molecules from high concentrated region moves to the place of lower concentrated region.

We know that diffusion is a process in which molecules from a region of higher concentration moves to the region having lower concentration so the gases exchanged between blood and interstitial fluid so we can conclude that diffusion is the process by which dissolved gases are exchanged between the blood and interstitial fluids.

Learn more about diffusion here: brainly.com/question/8880115

Learn more: brainly.com/question/13943290

Answer:The process by which dissolved gases are exchanged between the blood and interstitial fluids is called internal respiration.

Explanation:

Physiologically respiration is defined as the passing of oxygen the external environment into the cells within tissues, and the transport of carbon dioxide in the opposite direction.

Respiration is divided into three:

1.) The external respiration: this involves the inhalation of air and exhalation of used gases.

2.) The internal respiration: this is defined as a process of diffusing oxygen from the blood, into the interstitial fluid and into the cells

3.) Cellular respiration: this involves the conversion of food to energy. Its further divided into aerobic respiration, which is a cellular respiration that requires oxygen and anaerobic respiration which does not.

Which factors affect a river's load?a.
river’s slope
c.
streambed shape
b.
volume of flow
d.
all of the above

Answers

Answer: d.

all of the above

Explanation:

A river load can be define as the debris or sediments carried away by the stream of river water. The materials which are translocated includes the rocks, stones and other large particles. Generally, the finer particles floats over the water surface. River slope, shape of the stream bed and volume of flow of water all are the factors which can affect the river load.

River slope will cause the erosion of surface materials by using water. Shape of the stream bed is also a factor this is because of the fact that the wider the surface covered by water more erosion can be caused. If the volume of water flowing in the stream is high the water will take away the particles by causing friction over the surface.

D. because the size and shape of the slope determines weather the load can be sustained and c is correct too because the shape affects how much you can load and b. is correct as also because if the volume is very large it can affect the rivers load and flow.

Other Questions

CaSO3 (s) → → → → CaO (s) + SO2 (g) What mass of CaSO3 must have been present initially to produce 14.5 L of SO2 gas at a temperature of 12.5°C and a pressure of 1.10 atm?

NaHCO3 (s) + HC2H3O2 (aq) = NaC2H3O2 (aq) + H2O (I) + CO2 (g)Using the above formula, if I used 0.100L of 0.83 M HC2H3O2 (aq) (0.83 mol per 1 L of solution), how much carbon dioxide would be produced?

A radioactive isotope has a half-life of 2.5 years. Which fraction of the original mass remains unchanged after 10 years?

Which compound has the highest melting point? A) octane (C8H18), a molecular compound B) carbon dioxide (CO2), a common gas C) water (H2O) D) silicon carbide (SiC), a network solid