0
What else can I help you with?
How to find the percent by mass of a compound in a given sample?
To find the percent by mass of a compound in a given sample, you need to divide the mass of the compound by the total mass of the sample and then multiply by 100. This will give you the percentage of the compound in the sample.
Is it necessary to know the formula of a compound in order to calculate its percent composition?
YES.For one to know the percentage composition,the amount of moles of the reacting element must be considered using the compound. •Well you dont really have to know just the formula. You can eaither use the formula if its given or the molar mass if its given. i just recently did a test where i was given either the Molar mass or Formula name and i had to figure out the percent composition. so it depends on the info given.
Do all pure samples of a given compound have the same percent composition?
A compound is a combination of two or more elements. These elements join together based on their molecular bonds. No two elements combine in the same percentage.
How can one determine the molecular formula from the given molar mass and percent composition?
To determine the molecular formula from the given molar mass and percent composition, you can follow these steps: Convert the percent composition to grams for each element present in the compound. Calculate the number of moles of each element using the molar mass and the grams of each element. Divide the moles of each element by the smallest number of moles to get the mole ratio. Use the mole ratio to determine the empirical formula. Calculate the empirical formula mass and compare it to the given molar mass to find the multiplier needed to get the molecular formula.
Is C2H4O2 NaHCO2 a physical change?
No, mixing C2H4O2 and NaHCO2 is not a physical change as it does not alter the chemical composition of the substances involved. It would simply be a physical mixing or dissolution of the two compounds.
How to find the percent by mass of a compound in a given sample?
To find the percent by mass of a compound in a given sample, you need to divide the mass of the compound by the total mass of the sample and then multiply by 100. This will give you the percentage of the compound in the sample.
What is the formula of the compound between calcium and sulfur that has the percent composition 55.6 percent calcium and 44.4 percent sulfur?
The formula of the compound between calcium and sulfur with the given percent composition would be CaS. This is because the ratio of calcium to sulfur atoms in calcium sulfide matches the given percentage composition.
Is it necessary to know the formula of a compound in order to calculate its percent composition?
YES.For one to know the percentage composition,the amount of moles of the reacting element must be considered using the compound. •Well you dont really have to know just the formula. You can eaither use the formula if its given or the molar mass if its given. i just recently did a test where i was given either the Molar mass or Formula name and i had to figure out the percent composition. so it depends on the info given.
What is the difference between sample and sample size?
a sample is a sample sized piece given... a sample size is the amount given in one sample
Do all pure samples of a given compound have the same percent composition?
A compound is a combination of two or more elements. These elements join together based on their molecular bonds. No two elements combine in the same percentage.
What is social composition?
Social composition is the overall aggregate of all population demographics over a given sample or defined area. Social composition includes the demographics of age brackets, self-identification of faith, gender, and national background, income, and political affiliation.
How do you know when to solve for a empirical formula?
You should solve for an empirical formula when you are given the percent composition of elements in a compound or when you have the molar mass of the compound but not the molecular formula. The empirical formula provides the simplest whole-number ratio of atoms in a compound.
What is an inducter?
An inductive generalization takes a sample of a population and makes a conclusion regarding the entirepopulation.Inductive Generalizations take the form..X percent of observed Fs are GsthereforeX percent of all Fs are GsFor example, an experiment may test the effects of a drug on lab mice. They might reason..80% of observed mice die when given the drug.therefore80% of all mice die when given the drug.The argument's strength depends on the sample. A sample that is not representative of the population is called a biased sample.
How many moles are in 2.10 kg of NaHCO3?
For this you need the atomic (molecular) mass of NaHCO3. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel. NaHCO3=84.0 grams110 grams NaHCO3 / (84.0 grams) = 1.31 moles NaHCO3
What is an inductive generalization?
An inductive generalization takes a sample of a population and makes a conclusion regarding the entirepopulation.Inductive Generalizations take the form..X percent of observed Fs are GsthereforeX percent of all Fs are GsFor example, an experiment may test the effects of a drug on lab mice. They might reason..80% of observed mice die when given the drug.therefore80% of all mice die when given the drug.The argument's strength depends on the sample. A sample that is not representative of the population is called a biased sample.
What is induction generator?
An inductive generalization takes a sample of a population and makes a conclusion regarding the entirepopulation.Inductive Generalizations take the form..X percent of observed Fs are GsthereforeX percent of all Fs are GsFor example, an experiment may test the effects of a drug on lab mice. They might reason..80% of observed mice die when given the drug.therefore80% of all mice die when given the drug.The argument's strength depends on the sample. A sample that is not representative of the population is called a biased sample.
What is a blood sample?
A blood sample is a sample given for medical purposes as a blood test.
