How many calcium atoms are in 33.8g of calcium?

Expert Solution

Given mass of Calcium , m = 33.8 g

Molar mass of Calcium is , M = 40 g/mol

So number of moles of Calcium , n = mass/molar mass

= 33.8 g / 40 (g/mol)

= 0.845 moles

We know that 1 mole of any compound contains avagadro number ( 6.023 x 10 ²³ ) of atoms

So 1 mole of calcium contains 6.023 x 10 ²³ calcium atoms

0.845 moles of calcium contains Z calcium atoms

Therefore the number of calcium atoms are 5.09x10 ²³

queen_honey_blossom answered 2 hours ago

how many atoms in the 60.0g of Agcl?

how many atoms are in4.39g of CO2

-How many atoms are in 4.39 g of CO2? -How many molecules are there in 8.0...

-How many atoms are in 4.39 g of CO2? -How many molecules are there in 8.0 g of ozone, O3? -How many sulfur atoms are there in 21.0 g of Al2S3? -How many sulfur atoms are present in 25.6 g of Al2(S2O3)3? -Determine the number of moles of aluminum in 96.7 g of Al.

How many oxygen atoms are in 3.70 g of quartz?

How many total atoms are in 0.850 g of P2O5?

How many total atoms are in 0.900 g of P2O5?

1.) how many mole of oxygen atoms are present in 5.36g of CaCo3? 2.) how many...

1.) how many mole of oxygen atoms are present in 5.36g of CaCo3? 2.) how many moles of Cl atoms are there in 1.7g of CCl4 3). What is the mass of 2.4x10^29 particles of CaCo3? 4.) In the reaction below, (CH4+2O2----> CO2 +2H2O) how many moles of CH4 are required to react with 0.5 mol of oxygen gas to form products? 5). Consider the reaction of 3 mol of P4 and 10 mol of oxygen gas to produce P2O5....

1) How many atoms are there in 51.3 g of barium chloride (BaCl2)? 2) How many...

1) How many atoms are there in 51.3 g of barium chloride (BaCl2)? 2) How many moles of carbon monoxide (CO) are in 29.3 g of the compound? 3) What is the formula for copper(II) phosphate? Capitalization and punctuation count? 4) How many atoms of phosphorus are in 2.90 mol of copper(II) phosphate? 5) How many moles of N are in 0.191 g of N2O? 6) A sample of C3H8 has 7.68 × 1024 H atoms. How many carbon atoms...

how many atoms or ions of each element are in 197g of BaSO4

How many grams of solid calcium carbonate must decompose to produce solid calcium oxide and 534.0...

How many grams of solid calcium carbonate must decompose to produce solid calcium oxide and 534.0 mL carbon dioxide gas at 298°C and 729 torr?

Question