1. How many oxygen atoms are indicated in one formula unit of each of
the following?
Al2(C2O4)3
Ca3(PO4)2
Zn3(PO4)2
Al2(SO4)Ρ
2. How many atoms of each kind (N, P, H and O) does the notation
6(NH4)2HPO4
indicate?
β 6K2O + N2
b. 2 NH3 + O2 β N2 + 3 H2O
c. 4BF3 + 3H2O β H3BO3 + 3HBF4
d. 3 CI2 +6NaOH β 5NaC1 +NaC1O3 + 3 H2O
4. Balance the following equations.
a. MnO2 + HCl β MnCl2 + Cl2 + H2O
b. Fe +O2 β Fe3O4
R
Β€
Π¦
l
n
Π
β
β
Ρ
Β
Π
Π
Π
Π
Π’
Π€
ΠΊ
Ρ
Ρ
Ρ
Ρ
GO2 β CO2 +H2O
5. 2C8H18 + 25O2β 16CO2 + 18H2O
a. How many moles of H2O is produced when 2.81 mol of octane is
burned?
b. How many moles of CO2 is produced when 4.06 mol of oxygen is
consumed?
6. What mass of oxygen, in grams, is required to react with 52.0g of
C2H2?
7. What mass of nitric acid, in grams, can be made from 971g of
ammonia?
Chemistry Homework Solutions
#164902
How many oxygen atoms are indicated in one formula unit of each of the following?
Please help with the following problems.
1. How many oxygen atoms are indicated in one formula unit of each of the following?
a. Al2(C2O4)3
b. Ca3(PO4)2
c. Zn3(PO4)2
d. Al2(SO4)³
2. How many atoms of each kind (N, P, H and O) does the notation 6(NH4)2HPO4
indicate?
3. Which of the following equations are balanced?
a. 2 KNO3 + 10K → 6K2O + N2
b. 2 NH3 + O2 → N2 + 3 H2O
c. 4BF3 + 3H2O → H3BO3 + 3HBF4
d. 3 CI2 +6NaOH → 5NaC1 +NaC1O3 + 3 H2O
4. Balance the following equations.
a. MnO2 + HCl → MnCl2 + Cl2 + H2O
b. Fe +O2 → Fe3O4
c. C5H12 + O2 → CO2 +H2O
5. 2C8H18 + 25O2→ 16CO2 + 18H2O
a. How many moles of H2O is produced when 2.81 mol of octane is burned?
b. How many moles of CO2 is produced when 4.06 mol of oxygen is consumed?
6. What mass of oxygen, in grams, is required to react with 52.0g of C2H2?
7. What mass of nitric acid, in grams, can be made from 971g of ammonia?
What is this?
By OTA - Overall OTA Rating
Pankaj Kumar, PhD - 4.6/5
Purchase Cost Now
$2.19 CAD (was ~$7.98)
Included in Download
- Plain text response
- Attached file(s):
- Chemistry_questions.doc
Why you can trust BrainMass.com
- Your Information is Secure
- Best Online Academic Help Service
- Students find real academic Success
- Which of the following chemical equations is not balanced? - Which of the following chemical equations is not balanced? a. HCL + NaOH -> NaCL + H2O b. 2H2O2 -> 2H2O = O2 c. CaF2 + H2SO4 -> 2HF + CaSO4 d. Ca3 (PO4)2 = 4H3PO4 -> 3Ca(H2PO4)2 e. all of thes ...
- Chemical equations - Not sure where to begin, Reagents side is balanced: K2Cr2O7 + 4 H2SO4 + 3 SeO2 ---->.... If 0.6 mols K2Cr2O7 and 2.8 mols H2SO4 and 1.5 mols SeO2 are brought together and allowed to reac ...
- Balance redox reactions - a) Acid Solution: KI+HNO3=KNO3+NO+I2+H2O Cr2O7<-2> + I<-> = Cr<+3> + IO3<-> b) MnO4<-> + Br<-> = MnO2 + BrO3<-> Bi(OH)3 + Sno2<-2> = Bi + SnO3<-2>
- Stochiometery 4 - When 19.8g butane, C4H10 is burned with excess oxygen: 2C4H10g + 13O2g -----> 8CO2g +10H2Og How many grams of oxyen are consumed, how many grams of CO2 & H2O are produced?
- Learning how to balance chemical equations. - What is the coefficient for water (H2O) when the following equation is balanced using the lowest whole numbered coefficients? Al(s)+ ____H20(l) --> Al(OH)3(s) + H2(g)
