$$2.30 xx 10^24$$ $$"atoms Ca"$$ Explanation: We're asked to calculate the number of atoms of $$"Ca"$$ in $$153$$ $$"g Ca"$$. Join now. By signing up, you'll get thousands of step-by-step solutions to your homework questions. All Chemistry Practice Problems Mole Concept Practice Problems. How many atoms are in 127 g of calcium? during extraction of a metal the ore is roasted if it is a? 155-g Ca x ( 1 mol Ca / 40.1-g Ca) x ( 6.023 x 10²³ atoms Ca / 1 mol Ca) = 2.33 x 10²ⴠatoms Ca. Question: How Many Atoms Are In 157 G Of Calcium? 157 G----- Atoms. Therefore, 127 g of calcium constitutes 127/40.08 or 3.69 gram atomic masses. Sarah. View Answer A mixture of sodium ehloride ( N a C I ) and sodim carbonate ( N a 2 C O 3 ) has a mole 2 : 1 . Chemistry 0. 0.550 kg of water was heated from 20.3oC to 75.2°C. Determine the volume of a solid gold thing which weights 500 grams? 1 mole of a substance has Avagadros number of particles. 3.37 is the amount of moles of calcium there are in 135g . We're asked to calculate the number of atoms of #"Ca"# in #153# #"g Ca"#. How many atoms are in 133 g of calcium? The chief was seen coughing and not wearing a mask. Atomic weight of calcium is 40.0, so there are 40.0 g / mole # of moles = 147 / 40.0 = 3.68 moles. Should I call the police on then? How can I calculate the moles of a solute. how many atoms are in 133 g of calcium? Well Calcium has a atomic weight Of about 40.09. Expert Answer 100% (3 ratings) Previous question Next question Get more help from Chegg. 7 years ago. Ask your question. Find the energy required. How Many Atoms Are In 177 G Of Calcium. Learn this topic by watching Mole Concept Concept Videos. 8 years ago. 133 g divided by the gram-atomic weight of Ca (40.08 g/mol) = ⦠Using Avogadro's number, #6.022 xx 10^23"particles"/"mol"#, we can calculate the number of atoms present: #color(blue)(3.82# #cancel(color(blue)("mol Ca"))((6.022xx10^23"atoms Ca")/(1cancel("mol Ca")))#, #= color(red)(2.30 xx 10^24# #color(red)("atoms Ca"#, 58428 views 2 months ago. What we must first do ⦠How does the mole relate to molecules and ions? first 60 minutes are free. Convert the mass to moles by dividing by the molar mass (40.1-g/mol) then multiply by Avogadro's number (6.023 x 10²³ atoms/mol), 2. Why is the mole an important unit to chemists? To get the number of atoms you need to to multiply 3.37 by 6.02 * 10^23. See the answer. none of these b 1.25 102 a . How many atoms are in 159 g of calcium? Want to see the step-by-step answer? Favorite Answer. Calcium has an atomic ⦠check_circle Expert Answer. So 4.17 x (6.022 x 10^23) . Join now. ...â in ð Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions. Calculate the number of moles present in: (i) 60 g of calcium (ii) 3.011x10 23 number of oxygen atoms (Given that, Ca = 40 u ; Avogadro number, N o = ⦠Online tutors ready to help 24/7 for any subject. How many atoms are in 171 g of calcium? How many atoms are in 137 g of calcium? See Answer. We know that 113 mg is 0.113. Update: sorry i meant 157* Answer Save. Check out a sample Q&A here. DIAMOND355945 04/27/2020 Chemistry Middle School +5 pts. The content written by our service is totally original and free from all kinds of plagiarism. ChemTeam. What are the reasons behind choose microblading services? How many atoms are 147 g of calcium? Question. Answered this video, we're gonna go over how to convert Grams to moles. Do a quick conversion: 1 grams Calcium = 0.024951344877489 mole using the molecular weight calculator and the molar mass of Ca. Question: How many atoms are in 121 g of calcium? Click here ð to get an answer to your question ï¸ How many atoms are in 151 g of calcium? Get an answer to your question âHow many atoms are in 151 g of calcium? 3 Answers. 0 0. In this case the particles are atoms of Ca. 1. All Chemistry Practice Problems Mole Concept Practice Problems. How many atoms are in 157 g of calcium? Relevance. 4 3.46 10 24 d 5.02 . Ask your question. 4557 users searched for this homework answer last month and 74 are doing it now, letâs get your homework done. 5 7 4 0 g of silver chlorine present in the compound. check_circle Expert Answer. That will give you the number of atoms⦠0.113 g / 40.08 g/mole = 0.00282 moles of calcium. Question. How many moles of calcium (Ca) atoms are in 77.4 \mathrm{g} of Ca? Join now. Just divide by its Atomic weight Shown on the periodic table, 40.078, Put a g next to it, then multiply it out by Avagadro's number which is ⦠The gram atomic mass of calcium is 40.08. No. See Answer. 1) Find your moles. Answer Save. 15g = 15/40 = 0.375 moles. Lv 7. 3 7 8 0 g of an organic chloro compound gave 0. Now you take that number and multiply it by Avogadro's number to get the number of atoms. Learn this topic by watching Mole Concept Concept Videos. Lv 7. So you must divide 135 by 40.09 to get about 3.37. This Top Homework Answer is High School ⦠How many atoms are in 127 g of calcium? Tks! Just divide by its Atomic weight Shown on the periodic table, 40.078, Put a g next to it, then multiply it out by Avagadro's number which is 6.022 x 10^23, Soooo (155g Ca/1)*(1 mole/40.078g)*(6.022 x 10^23/1 mole), Basically its saying you have 155g of Calcium, and you now from the Periodic table that its Amu is 40.078 (atomic mass) to get 1 mole of that element, so you divide, and that for every mole there are 6.022 x 10^23 atoms in that mole, so you multiply out to get the amount of atoms in that mole 8D, 1. Favorite Answer. 2) To find the atoms, multiply 0.00282 moles x 6.022x10^23 atoms/mole = 1.70 x 10 ^21 atoms of calcium. 2 months ago (133 g Ca) / (40.0784 g Ca/mol) x (6.022 x 10^23 atoms/mol) = 2.00 × 10^24 atoms Ca. Avogadro's number is 6.02 x 10^23 atoms / mole. Answer to: How many atoms are in 117 g of calcium. Log in. How many atoms of calcium are present in 83.4 g of calcium? aliciasmith7011 aliciasmith7011 04/14/2020 ⦠1 Questions & Answers Place. Log in. This problem has been solved! 2 Answers. remind that mass=number of moles x molar mass and molar mass of Ca is 40 $$167=n*40$$ $$n=4.175$$ 1 moles =$$6.02 × 10^23 $$atoms therefore ⦠If possible explain how to get the solution. Find answers now! How many atoms are in 127 g of calcium? Want to see this answer and more? To work this out you need to know the atomic weight of calcium and Avogadros number, which is the number of atoms in a gram atom. To help 24/7 for any subject substance has Avagadros number of moles = /... Niobium atom is 1.54 x 10-22 grams 6.02 * 10^23 40.08 g/mole = moles... Get Other questions how many atoms are in 157 g of calcium the subject: Chemistry in the compound of silver chlorine present 83.4! This video, we 're gon na go over how to convert to. In 83.4 g of calcium / 40.0 = 3.68 moles the number of atoms not wearing mask... Mole # of moles from volume mole of a metal the ore is if. Roasted if it is a the moles of calcium ratings ) Previous question question! 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