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The only way a biochemical oxygen demand value could be negative is if oxygen increased in your incubation. This could result from several errors, but most likely light was allowed to penetrate your bottle allowing photosynthesis to occur. If everything was done correctly (e.g. insturments are calibrated and working, no errors were made in calculations) you should have at least a 1mg/L difference between initial and final dissolved oxygen readings yielding a positive value.
What else can I help you with?
Does a demand curve always have a positive slope?
Demand curves almost always have negative slopes. The Y value being price and the X value being quantity. The higher the price, the more negative the slope. There are very rare conditions where a demand curve could have a positive slope, but its not normally used in business classes.
Why do we get the absolute value of demand slope?
We take the absolute value of the demand slope to ensure that the elasticity of demand is expressed as a positive number, making it easier to interpret. Demand typically has a negative slope, reflecting the inverse relationship between price and quantity demanded; by using the absolute value, we focus on the magnitude of the responsiveness rather than the direction. This allows for a clearer comparison of elasticities across different goods and contexts.
What does a negative add a positive equal?
If the absolute value of the negative is bigger than that of the positive, then the answer is negative. If the absolute value of the negative is the same, then zero. If the absolute value of the negative is smaller, then positive. Absolute value is the value ignoring the sign.
Will a negative number to the fifth power be a positive or negative value?
The result will be a negative value.
What is the normal value for PvO2?
The normal value for venous partial pressure of oxygen (PvO2) typically ranges from 30 to 50 mmHg. This measurement reflects the amount of oxygen dissolved in the venous blood and can vary based on factors such as metabolic demand and overall respiratory function. It is an important indicator of the body’s oxygen extraction and utilization.
Can dissolved oxygen value be a negative value?
No, dissolved oxygen values cannot be negative. Dissolved oxygen levels in water are typically measured in milligrams per liter (mg/L) or parts per million (ppm) and will always be a positive value. Negative values would not make physical sense in this context.
What will happen to the chemical oxygen demand value if HgSO4 is not added?
the effect of Cl- is appear and the value of COD becomes more than the really value
Does a demand curve always have a positive slope?
Demand curves almost always have negative slopes. The Y value being price and the X value being quantity. The higher the price, the more negative the slope. There are very rare conditions where a demand curve could have a positive slope, but its not normally used in business classes.
Can the USO ETF go negative in value?
Yes, the USO ETF can go negative in value due to factors such as market conditions, supply and demand dynamics, and changes in the underlying assets it tracks.
Why do we get the absolute value of demand slope?
We take the absolute value of the demand slope to ensure that the elasticity of demand is expressed as a positive number, making it easier to interpret. Demand typically has a negative slope, reflecting the inverse relationship between price and quantity demanded; by using the absolute value, we focus on the magnitude of the responsiveness rather than the direction. This allows for a clearer comparison of elasticities across different goods and contexts.
What is the value of negative 9?
negative nine is the value of negative nine
What does a negative add a positive equal?
If the absolute value of the negative is bigger than that of the positive, then the answer is negative. If the absolute value of the negative is the same, then zero. If the absolute value of the negative is smaller, then positive. Absolute value is the value ignoring the sign.
Does a positive value multiplied by a negative value equal a positive?
No, the product of the multiplication of a positive and a negative value is negative.
Will a negative number to the fifth power be a positive or negative value?
The result will be a negative value.
What is the normal value for PvO2?
The normal value for venous partial pressure of oxygen (PvO2) typically ranges from 30 to 50 mmHg. This measurement reflects the amount of oxygen dissolved in the venous blood and can vary based on factors such as metabolic demand and overall respiratory function. It is an important indicator of the body’s oxygen extraction and utilization.
Can an absolute value equal a negative?
An absolute value can not be negative.
A positive number minus a negative number is?
If negative value>positive value then result is -ve If positve value>negative value then result is +ve
