Chemistry, 04.05.2021 23:40 hammackkatelyn60
Which of the following is NOT true about empirical and molecular formulas?
The molecular formula of a compound can be some whole-number multiple of its empirical
formula.
Several compounds can have the same empirical formula, but have different molecular formulas.
The empirical formula of a compound can be triple its molecular formula.
The molecular formula of a compound can be the same as its empirical formula.
Answers: 3
Chemistry, 22.06.2019 02:40
Consider the nuclear equation below. 239/94 puโ-> x+ 4/2 he. what is x?
Answers: 2
Chemistry, 22.06.2019 10:30
Balance and in which category does it fit in? single or double displacement or synthesis or decomposition? (a) k2 o โ k + o2 (b) na + i2 โ nai (c) cu(no3 )2 + naoh โ cu(oh)2 + nano3 (d) kclo3 โ kcl + o2 (e) ca(no3 )2 + hbr โ cabr2 + hno3 (f) sn(oh)2 โ sno + h2 o (g) p4 + n2 o โ p4 o6 + n2 (h) fe + al2 (so4 )3 โ feso4 + al (i) alcl3 + na2 co3 โ al2 (co3 )3 + nacl (j) c3 h6 + o2 โ co2 + h2 o
Answers: 1
Chemistry, 22.06.2019 18:50
At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver
Answers: 1
Chemistry, 22.06.2019 20:00
Phosphoric acid is a triprotic acid ( =6.9ร10โ3 , =6.2ร10โ8 , and =4.8ร10โ13 ). to find the ph of a buffer composed of h2poโ4(aq) and hpo2โ4(aq) , which p value should be used in the hendersonโhasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.
Answers: 3
Which of the following is NOT true about empirical and molecular formulas?
The molecular formula o...
Mathematics, 16.03.2022 05:30
Chemistry, 16.03.2022 05:30
History, 16.03.2022 05:40
Physics, 16.03.2022 05:40
History, 16.03.2022 05:40