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What is the basic unit for mass?
The basic unit for mass is the kilogram (kg).
The what of a medium is how much matter or mass there is in a given volume?
The density of a medium is how much matter or mass there is in a given volume.
Basic metric unit of mass?
The basic metric unit of mass is the gram (g).
The basic unit of mass in the metric system is the what?
The basic unit of mass in the metric system is the gram.
What is 15 kilograms?
A mass. A medium sized dog might have a mass of 15 kg.
How many grams of potassium are present in 21.6 g of K2Cr2O7?
To find the amount of potassium in K2Cr2O7, calculate the molar mass of K2Cr2O7 first. The molar mass of K2Cr2O7 is 294.2 g/mol. Potassium accounts for 239.1 g/mol = 78.2 g/mol in K2Cr2O7, so in 21.6 g of K2Cr2O7, there are 21.6 g * (239.1 g/mol / 294.2 g/mol) = 5.77 g of potassium.
How many grams of potassium are in 24.1 g of K2Cr2O7?
To find the amount of potassium in K2Cr2O7, we need to determine the molar mass of K2Cr2O7 and the molar mass of potassium. Molar mass of K2Cr2O7 = (239.10 g/mol) + (252.00 g/mol) + (7*16.00 g/mol) = 294.18 g/mol Molar mass of potassium = 39.10 g/mol Now, determine the amount of potassium in 24.1 g of K2Cr2O7 by first converting 24.1 g of K2Cr2O7 to moles, then calculating the grams of potassium is in that amount of K2Cr2O7 using the molar ratios determined by the chemical formula.
How many grams of oxygen will be in 2 moles of potasium dichromate?
In potassium dichromate (K2Cr2O7), the molar mass is 294.18 g/mol. Therefore, 2 moles of K2Cr2O7 will contain 2 x 294.18 = 588.36 grams of the compound. Since there are 7 oxygen atoms in each molecule of K2Cr2O7, the total mass of oxygen in 2 moles will be 7 x 16 (molar mass of oxygen) x 2 = 224 grams.
Why you can use 4.9035 g K2Cr2O7 to prepare 0.1 n solution?
To prepare a 0.1 N solution of K2Cr2O7, you need to calculate the molar mass of K2Cr2O7 and use the formula for normality. By dividing the given weight by the molar mass, you can determine the number of moles present, and then calculate the normality using the volume of the solution.
How many grams of potassium are in 12.5 g potassium dichromate?
Potassium dichromate has a molar mass of 294.19 g/mol and contains 2 atoms of potassium. This means one mole of potassium dichromate contains 294.19 * 2 = 588.38 grams of potassium. Therefore, 12.5 grams of potassium dichromate would contain 12.5 * 2 / 294.19 ≈ 0.085 grams of potassium.
How many potassium atoms are there in a sample of K2Cr2O7 having a mass of 24.43 g?
To find the number of potassium atoms in a sample of K2Cr2O7, you first need to calculate the number of moles of K2Cr2O7 using its molar mass. Then, you can determine the number of moles of potassium atoms since there are 2 potassium atoms in each molecule of K2Cr2O7. Finally, use Avogadro's number (6.022 x 10^23) to convert the number of moles of potassium atoms to the actual number of atoms.
The formula potassium dichromate is K2Cr2O7. How many grams of oxygen will be in 2 moles of potassium dichromate?
In one mole of potassium dichromate, there seven moles of oxygen. This means in two moles of K2Cr2O7, there are 14 moles of O, or 7 Moles of O2, which equals 224 grams.
What is the equivalent weight of K2Cr2O7 fully explanation?
The equivalent weight of K2Cr2O7 is determined by the number of moles of electrons transferred in a redox reaction per mole of the substance. For K2Cr2O7, the equivalent weight is calculated using the total change in oxidation state divided by the number of moles of K2Cr2O7 involved in the reaction. This value is used to quantify the amount of K2Cr2O7 needed to gain or lose an equivalent amount of electrons in a redox reaction.
What is the relative formula mass of each of the following compounds of potassium dichromate?
The relative formula mass of potassium dichromate (K2Cr2O7) is calculated by adding the atomic masses of its individual elements. The atomic masses of potassium (K), chromium (Cr), and oxygen (O) are 39.1, 52, and 16 respectively. Therefore, the relative formula mass of potassium dichromate is 294.2 g/mol.
How many grams of oxygen is in 2 moles of potassium dichromate?
There are 6 moles of oxygen atoms in 2 moles of potassium dichromate (K2Cr2O7). Each mole of K2Cr2O7 contains 7 oxygen atoms, so 2 moles would contain 14 oxygen atoms. The molar mass of oxygen is 16 g/mol, so there would be 224 grams of oxygen in 2 moles of K2Cr2O7.
What is the basic unit for mass?
The basic unit for mass is the kilogram (kg).
What are the three stages in the development of a new mass medium?
The three stages in the development of a new mass medium are emergence, entrepreneurial, and mass medium. In the emergence stage, a new technology or platform is created. In the entrepreneurial stage, innovators experiment with the new medium to determine its potential. In the mass medium stage, the medium gains widespread adoption and becomes a standard part of communication.
