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Question 2 of 25 > How many grams of S are in 575 g of so,? mass:
1. How many atoms are represented by: a. 0.96 moles Ca b. 0.39 moles Ga c. 0.94 moles Ag d. 0.39 moles Mg 2. How may molecules are represented by a. 0.39 moles CH3COOH b. 0.71 moles N2 C. 0.72 moles C&H 206 d. 0.57 moles 02 3. How may grams are represented by: a. 6.11 moles C6H1206 b. 1.89 moles 02 c. 6,61 moles NaHCO3 d. 1.14 moles Na 4. How may moles are represented by: a. 26.32 grams...
3 Cl2 + 6 KOH 5 KC - KCIOS - 3H30 a. How many moles of Cly have to react to produce 15 x 10 moles of KCIO3? b. How many grams of KCl are produced from the complete reaction of 3.0 moles of KOH? c. How many moles of Cly have to react to produce 5.40 x 103 g of H20? d. How many molecules of KOH have to react to produce 1.5 moles of H20? e. How many...
10. How many grams of H3PO, are produced when 10 moles of water react with an excess of Pā020? P.010 + 6H2O + 4H,PO, a. 1.228 b. 6.7 g c. 147 g d. 653 g
How many atoms or ions of each element are in 151.1 g of the following substances? (a) H2 x 1025 H atoms (b) Ca(NO3)2 * 1023 Ca2+ ions x 1024 NO3 ions (C) N202 x 1024 N atoms * 1024 O atoms (d) K2SO4 * 1024 K+ ions * 1023 s042-ions
1) How many oxygen atoms are there in 296.0 g of Cr(PO4)2
2) ?
a)
b)
7. How many Oxygen atoms are there in 29 gen atoms are there in 296.0 g of Cr(PO4)2 ? show work (6 pts) consider the following balanced chemical equation when answering the following questions: 2 Cs3PO3 + 3 BaBr2 ------ ----ā 6 CsBr + Ba3(PO3)2 a) How many mols of CsBr should be produced if 8.68 g of BaBr2 are used in the reaction?...
< Question 3 of 6 306 > ) How many picograms are in 6.39 x 10-"g? 6.39 x 10-11 How many micrometers are in 2.85 x 10m ? 2.85 x 10-5 m How many kilovolts are in 1.90 x 10' V? 1.90 x 10 V- How many nanoliters are in 6. 6.77 x 10-19
29. How many moles of Ca atoms are in 540.3 g Ca? a. 13.48 mol b. 7.418 x 10-2 mol C. 2.166 x 104 mol d. 26.96 mol e. 540.3 mol
(3 pts.) 3 13.0 moles of potassium react with excess oxygen, how many moles of potassium oxide will form? K(s) + _ _02 (g) ā K20 (5) (3 pts.) 4 How many grams of potassium oxide can be produced from 4.50 g of K and an excess of O, based on the equation in question 3?
How many atoms are in 2.402 g of Carbon? 1.45 x 1023 atoms 1.204 x 1023 atoms 0.200 atoms 1.204 x 10-23 atoms