How many grains of rice are in a mole?
Doing that for a year we need 9.89 x 10 ^ 16 little, individual grains of rice. Knowing that a mole is 6.022 x 10 ^ 23, we can devide with 9.89 x 10 ^ 16, and – this might make you shiver with excitement – we get that a mole of rice grains will feed the current population of our planet for … 6088978 years!!
How do you find moles of rice?
Students will need to find the mass and volume of single rice grain, by massing and taking the volume of 50-10 grains and then dividing by the number of grains. Once they know the volume of one grain, they can find the volume of a mole of grains.
How many years does it take to count to 1 mole?
rate of 10 million per second, it would take about 2 billion years to count the atoms in one mole.
How deep in miles would the rice be if we poured one mole of rice grains on Texas?
Imagine their amazement when they calculate that Avogadro’s number of rice grains will cover the state of Texas to a depth of 12 to 14 miles. Helpful Hints: Students will have to use the information listed after the questions to solve some of the problems.
How much would a mole of sand take up?
One mole is equal to 6.022×1023 units. A mole is an important unit because on the periodic table a mole of a substance is equal to its atomic mass in grams. A mole is a huge number because if there is a mole of grains of sand, it is roughly the number of grains of sand on Earth, according to XKCD whatif.
How does one calculate the mass of rice?
Calculate the mass of a grain of rice
Divide 10 g by the number of rice grains. This gives an estimate of the mass of one grain of rice in g. Measure out exactly 10 g of rice. Take this number and multiply it by 1000.
How many grains of sand are in a mole of grains of sand?
The size of a mole really is mind-blowing. It is a HUUUUGE number: not written in scientific notation it would be 602,214,199,000,000,000,000,000. So how can we think about this number in terms of things we’re more familiar with? On Earth, there are approximately 7.5×1018 (or 7,500,000,000,000,000,000) grains of sand.
What color is mole?
A normal mole is usually an evenly colored brown, tan, or black spot on the skin. It can be either flat or raised. It can be round or oval. Moles are generally less than 6 millimeters (about ¼ inch) across (about the width of a pencil eraser).
How many atoms are in a grain of sand?
For a typical grain of sand (size 1mm) made of Si02 , the estimate is 1019 atoms… If a grain is a fraction of mg, 1 g of grain has truly more atoms than stars in the universe.
How long would it take you to spend a mole of dollars if you spend 1 million dollars per second?
3. Start with a mole of dollar bills. If you could have spent a million dollars every second since the earth was formed 4.5 billion years ago, would any of the money remain today? [Answer—About 3⁄4 of the money would still be left and it would take another 15.5 billion years to spend it all.] 4.
How long would it take you to spend a mole of dollars if you spend 1 billion dollars per second?
– If you had Avogadro’s number of dollars and spent one billion dollars per second, it would take more than 19 million years to spend it all.
How long would it take you to spend a mole of dollars if you spent 1 billion dollars per second you will need to research this online?
How many years would it take you to spend 1 mole of dollars, if you spend at a rate of $1 billion per second ? = 19,089,294.77 years over 19 million years!!!
Can a mole of pennies cover the earth?
1 mol of pennies distributed around the Earth would give everyone 1 million trillion dollars. … 6.02 X 1023 Donut Holes: Would cover the earth and be 5 miles (8 km) deep. 6.02 X 1023 Pennies: Would make at least 7 stacks that would reach the moon.