Concept explainers
Calculate the of the cyanide ion
a)
b)
c)
d)
e)
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Chemistry
- For conjugate acid-base pair, identify the first species as an acid or a base and the second species as its conjugate base or conjugate acid. In addition, draw Lewis structures for each species, showing all valence electrons and any formal charges. Q) CH3NH2, CH3NH3+arrow_forwardwhich of the following compounds has the smallest number of acidic hydrogen atoms? HC4H7O2, H2C2O4, H2C4H4O4, H3PO4, H2C3H2O4, NH3arrow_forwardWhich of the following species will combine with a chloride ion to produce ammonium chloride? a.NH3 b.K+ c.NH4+ d.Al+++arrow_forward
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- Which atom bears the formal positive charge in the hydronium ion?arrow_forward2. Give the shape and the corresponding bond angle for a molecule of formula QX, where Q is an element from Group 4 of the periodic table. 3. State the shape of the PH, molecule and explain using electron-pair repulsion theory how this shape arises.arrow_forwardComplete the following acid-base reaction, using curved arrows to show the movement of electrons. Write Lewis structures for all reactants and products. Label all acids and bases. Predict the position of the equilibrium and explain your reasoning. NH ноarrow_forward
- Write an equation for the Lewis acid / Lewis base reaction between boron trifluoride and dimethyl sulfide [(CH3)2S]. Use the curved arrows to show the motion of the electrons and, if present, show the formal chargesarrow_forwardIndicate whether each of the following statements is true or false. For each statement that is false, correct the statement to make it true. The strongest acid known is HF because fluorine is the most electronegative element.arrow_forwardTI - F b) 0-F, O CI c) P- CI, S- CI d) C-F, C-0,C-N, C-C 16 The charge number of phosphorous is 15. Write: The Lewis dot symbol of P atom. The Lewis structure of PH, molecule. The type of PH, molecule according to VSEPR. Deduce the geometry of PH, molecule. The structure of PH,, Showing the geometry and expected bond angles 17 Write Lewis structures for the following molecules CS, , F, H,S, CO, , C,H, , CHCI, , HCN , C,H, N,H, , F,0. 2 1 8 Calculate the number of moles, and molecules in: a) 10 g water b) 10 g ethanol C,H,O c) 10 g of glucose C,H,,O, 9 How many nitrogen atoms are present in 25.00 g of N,O,?arrow_forward
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