WebHow many grams of Br are there in 535 g of CaBr2? 535g CaBr2 x (159g Br/199.9g CaBr2) = 428g Br. How many total atoms are in .330 g of P2O5? 9.8 x 10^21 atoms. A 54.9g sample of the compound X2O7 contains 33.6g of oxygen atoms. What is the molar mass? 33.6g O x (1mol/16.00g O)(2mol X/7mol O) = .600 mol X Web16 dec. 2024 · 50.4g CaBr2 to moles Ask a New Question 50.4g CaBr2 to moles asked by jay December 16, 2024 1 answer moles = grams/molar mass DrBob222 December 16, 2024 Answer this Question Still need help? You can ask a new question or browse more chemistry questions.
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Web20 sep. 2016 · Molar mass: Br = 79.904 g/mol. CaBr2 = 199.886 g/mol. CaBr2 = 2 Br + Ca. 199.886 g --------------- 2 x 79.904 g. 255 g -------------------- ?? ( mass of Br ) 255 x 2 x … Web2 okt. 2016 · Explanation: P 2O5 has a molar mass of 141.94 ⋅ g ⋅ mol−1. And thus there is a molar quantity of 0.410 ⋅ g 141.95 ⋅ g ⋅ mol−1 = 2.89× 10−3 ⋅ mol. Because there are 6.022 × 1023 particles in a mole by definition, there are thus, = how many atoms. Note the actual molecule is P 4O10; had I worked out the problem with this ... mohamed chaabouni
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WebCaBr2: 40.08 + 2(79.9) = 199.88 g/mol % Br: (159.8/199.88) x 100 % Br: 0.799... This indicates that any sample of CaBr2, regardless of the size, is 79.9%... bromine by mass so we can take 79.9%... of this 485 gram sample to determine how much of it is bromine. (0.799... Br)(485 g) = 388 g Br Student review 100%(1 rating) Web30 okt. 2024 · In this video we'll balance the equation AgNO3 + CaBr2 = AgBr + Ca(NO3)2 and provide the correct coefficients for each compound.To balance AgNO3 + CaBr2 = Ag... Webwe know that molar mass of Ca is aproximately 40 g/mol and that of Br is nearly 80 g/mole. total weight of substance is 40+2*80=200 g/mol n (CaBr2)= 175g/200g/mol = 0.875 mol if there are 2 moles (160g) of bromide in 1 mole of CaBr2 then it is possible to say there are 1.75 moles of Br in 0.875 moles of Calcium bromide mohamed cardiologist