Ch 5 and 6 chem 107 help. could you go step by step in some . others just need help anyway. thank you

1a to 20a questions are in the photos, 1b to 18b are after this text. Im sorry they are hard to see i tried all i had. please help i have a test and even more work for 2 more chapters in 2 days and need this done and to actually understand it.

1b.How many moles of Cu are in 1.48 × 10²⁵ Cu atoms?

A.

0.0408

B.

24.6

C.

1.54 × 1025

D.

6.022 × 1023

E.

none of the above

2b.How many moles of O are there in 12.4 mol Fe(NO₃)₃?

A.

12.4

B.

37.2

C.

4.13

D.

112

E.

none of the above

3b.How many moles of sulfate ions are contained in 0.420 moles of aluminum sulfate?

A.

0.140 moles

B.

1.26 moles

C.

0.840 moles

D.

0.420 moles

4b.Sucrose, C₁₂H₂₂O₁₁, is the common table sugar. If 1.054 g of sucrose are added to a cup of tea how many molecules of sucrose will be in the cup?

A.

1.854 x 10²¹ molecules

B.

3.079 x 10^-3 molecules

C.

1.251 x 10²¹ molecules

D.

2.078 x 10^-3 molecules

5b.Determine the correct empirical formula of a compound containing 26.68% carbon, 2.24% hydrogen, and 71.08% oxygen.

A.

CHO

B.

CHO₂

C.

C_0.5H_0.5O₁

D.

C₂H₂O₄

E.

none of the above

6b.A 42.7 gram sample of potassium nitrate contains how many grams of potassium?

A.

39.1

B.

16.5

C.

21.4

D.

8.54

E.

none of the above

7b.Ammonium nitrate is used as a highly soluble nitrogen-rich fertilizer. What is the mass% N for this fertilizer.?

A.

34.999%

B.

21.211%

C.

17.499%

D.

42.423%

8b.How many kilograms of ammonium nitrate are required to provide 2.50 kg of nitrogen into the soil?

A.

11.8 kg

B.

5.89 kg

C.

14.3 kg

D.

7.14 kg

9b. A 7.96 gram sample of silver reacts with oxygen to form 8.55 gram of the metal oxide. What is the formula of the metal oxide?

A.

Ag₄O

B.

AgO₂

C.

Ag₂O₂

D.

AgO₄

E.

Ag₂O

10b.If a sample of H₂O contains 9.02 × 10²³ atoms, how many grams of H₂O is this?

A.

3.00 g H₂O

B.

9.00 g H₂O

C.

27.0 g H₂O

D.

9.02 g H₂O

11b.What is the mass percent of carbon in oxalic acid, H₂C₂O₄?

A.

2.24

B.

13.3

C.

26.7

D.

34.5

E.

none of the above

12b.An iron ore sample is found to be 35.00% Fe by mass. How many grams of ore are needed to obtain 454.0 g of Fe?

A.

1297

B.

158.9

C.

295.1

D.

350.0

E.

none of the above

13b.How many formula units are in 0.761 g of iron(III) nitrate?

A.

1.89 x 10²¹ f.u.

B.

3.13 x 10²¹ f.u.

C.

3.15 x 10^-3 f.u.

D.

2.36 x 10²¹ f.u.

E.

3.93 x 10^-3 f.u.

14b.An iron chloride compound contains 55.85 grams of iron and 106.5 grams of chlorine. What is the most likely empirical formula for this compound?

A.

FeCl

B.

FeCl₂

C.

Fe₂Cl

D.

FeCl₃

E.

Fe₃Cl

15b. An unknown organic acid has a molar mass of 60.06 g/mol. Given the following percent composition, what is the molecular formula? 40.0% C, 6.70% H, 53.3% O (The formulas of organic acids are typically written without H at the front)

A.

C₃H₄O₃

B.

CH₂O

C.

C₂H₄O₂

D.

C₆H₁₂O₆

E.

none of the above

16b.What is the number of moles for 2.44 x 10²² NaCl formula units?

A.

0.0405 moles

B.

0.00405 moles

C.

24.68 moles

D.

Not enough information

17b.A dietary supplement for calcium contains 600 mg of CaCO₃ per tablet. How many grams of calcium are in a tablet?

A.

0.240 g

B.

0.353 g

C.

240 g

D.

353 g

18b.What is the mass of 0.560 moles of chlorine gas?
Transcribed Image Text:Font Paragraph Styles Editing Voice Sensit 18a.What is the correct formula for the compound that forms from aluminum and ozygen? 12a What is the carrect formula for barium hypochlorite? ALO BaCIO: BaCIO. AIQ Ba(CIO): Ba(CIO:): none of the above none of the above 19a.Calculate the formula mass of calcium nitrate. 102.09 amu 13a. A second sample of the compound in question 13 aboe released 1.734 g of azygen when it was decomposed. How many grams of copper were in this secand sample (Use the information in question 13 too). 164.10 amu 86.09 amu A.8.820 g 70.09 amu ( B. 7.086 g C. Information provided is not enough none of the above 20a The formula unit for calclum chloride has the compasition Cacla. Which of the following statements Is true based on this information? D.0.4243g 14a. Give the correct name for the compound with the following formula: PbCO1. C A. The empirical formula for calcium chloride is CaClL. lead carbonate C B. Calcinm chloride is made up of CaCl molecules. lead(I) carbonate leadT) carbonate CaCli represents the smallest group of ions in a 3-D extended network of calcium and C. chloride ions. C D.A and C leadaV) carbonate C E.B nd C lead carbon riozide 15a. Which of the following is a molecular element? A. argon B. chlorine C. cobalt D. helium E. none of the abote 16a Acetone, a nail polish remover, has the molecular formula CHO. The empirical formula for acetone is A.CHO B. CHO C. CH O D. None of the above 17a When 12.259 g of a compound containing only copper and oxygen was decomposed it produced 2.410 g of oxygen How many grams of copper were in the compound? (Do rot mclude units in vour answer) Focus
Transcribed Image Text:la The name far the campound ClOr is: A. Chlorine heptoxide C C. Bn(liquid) C D.Br(Fas) B. Dichloride heptaxide 4 C. Dichlorine heptoxide C D. Chlorine pentoride TaWhich of the following is an empirical formula? CA.CHO B. CH:O 2n Taking the same compound of question 13, how many grams of the compound would be required to produce 3.032 g of oxygen? A D.A and B CA3.836 g EA,B and C C B. 12.60 g 8a. Calculate the formula mass of carban tetrachloride. C C. Information provided is not enough C D.15.63 g d 47.46 amu 47.46 grams 3a. What is the correct name for HaSO (an)? a 83.49 amu sulfuric acid 153.81 amu sulfurous acid 153.81grams e hyposulfurous acid C bydtosulfuric acid 9a What is the correct formula for the compound that forms berareen calcium and hydromide? none of the above CaOH 4a. Which of the following pair has the correct name for the given formula? a CaHi CaNO:)- calcium nitrate apone of the above KO- dipotassium monoxide 10a. The chemical formula for manganese(I) ozide is eA Mn Oi PCl - phosphorus chloride PBCO1- leaddII) carbonate B. MnO: HNO: (aa - bydrogen nitrate e C. MnO Sa The chemical fomula for iodic acid is: D. MnO A.HI 1laWhat is the correct namie for SCli? SB HIO sulfur tetrachloride C. HIO morasulfur tetrachloride DHIO sulfur chloride 6a. Which of the following chemical formulas and pbysical states represents bromine in its nanural state7 sorinum(I) chloride sodium chloride A.E:(gas)

Question

Ch 5 and 6 chem 107 help. could you go step by step in some . others just need help anyway. thank you

1a to 20a questions are in the photos, 1b to 18b are after this text. Im sorry they are hard to see i tried all i had. please help i have a test and even more work for 2 more chapters in 2 days and need this done and to actually understand it.

1b.How many moles of Cu are in 1.48 × 10²⁵ Cu atoms?

	A.	0.0408
	B.	24.6
	C.	1.54 × 1025
	D.	6.022 × 1023
	E.	none of the above

2b.How many moles of O are there in 12.4 mol Fe(NO₃)₃?

	A.	12.4
	B.	37.2
	C.	4.13
	D.	112
	E.	none of the above

3b.How many moles of sulfate ions are contained in 0.420 moles of aluminum sulfate?

	A.	0.140 moles
	B.	1.26 moles
	C.	0.840 moles
	D.	0.420 moles

4b.Sucrose, C₁₂H₂₂O₁₁, is the common table sugar. If 1.054 g of sucrose are added to a cup of tea how many molecules of sucrose will be in the cup?

	A.	1.854 x 10²¹ molecules
	B.	3.079 x 10^-3 molecules
	C.	1.251 x 10²¹ molecules
	D.	2.078 x 10^-3 molecules

5b.Determine the correct empirical formula of a compound containing 26.68% carbon, 2.24% hydrogen, and 71.08% oxygen.

	A.	CHO
	B.	CHO₂
	C.	C_0.5H_0.5O₁
	D.	C₂H₂O₄
	E.	none of the above

6b.A 42.7 gram sample of potassium nitrate contains how many grams of potassium?

	A.	39.1
	B.	16.5
	C.	21.4
	D.	8.54
	E.	none of the above

7b.Ammonium nitrate is used as a highly soluble nitrogen-rich fertilizer. What is the mass% N for this fertilizer.?

	A.	34.999%
	B.	21.211%
	C.	17.499%
	D.	42.423%

8b.How many kilograms of ammonium nitrate are required to provide 2.50 kg of nitrogen into the soil?

	A.	11.8 kg
	B.	5.89 kg
	C.	14.3 kg
	D.	7.14 kg

9b. A 7.96 gram sample of silver reacts with oxygen to form 8.55 gram of the metal oxide. What is the formula of the metal oxide?

	A.	Ag₄O
	B.	AgO₂
	C.	Ag₂O₂
	D.	AgO₄
	E.	Ag₂O

10b.If a sample of H₂O contains 9.02 × 10²³ atoms, how many grams of H₂O is this?

	A.	3.00 g H₂O
	B.	9.00 g H₂O
	C.	27.0 g H₂O
	D.	9.02 g H₂O

11b.What is the mass percent of carbon in oxalic acid, H₂C₂O₄?

	A.	2.24
	B.	13.3
	C.	26.7
	D.	34.5
	E.	none of the above

12b.An iron ore sample is found to be 35.00% Fe by mass. How many grams of ore are needed to obtain 454.0 g of Fe?

	A.	1297
	B.	158.9
	C.	295.1
	D.	350.0
	E.	none of the above

13b.How many formula units are in 0.761 g of iron(III) nitrate?

	A.	1.89 x 10²¹ f.u.
	B.	3.13 x 10²¹ f.u.
	C.	3.15 x 10^-3 f.u.
	D.	2.36 x 10²¹ f.u.
	E.	3.93 x 10^-3 f.u.

14b.An iron chloride compound contains 55.85 grams of iron and 106.5 grams of chlorine. What is the most likely empirical formula for this compound?

	A.	FeCl
	B.	FeCl₂
	C.	Fe₂Cl
	D.	FeCl₃
	E.	Fe₃Cl

15b. An unknown organic acid has a molar mass of 60.06 g/mol. Given the following percent composition, what is the molecular formula? 40.0% C, 6.70% H, 53.3% O (The formulas of organic acids are typically written without H at the front)

	A.	C₃H₄O₃
	B.	CH₂O
	C.	C₂H₄O₂
	D.	C₆H₁₂O₆
	E.	none of the above

16b.What is the number of moles for 2.44 x 10²² NaCl formula units?

	A.	0.0405 moles
	B.	0.00405 moles
	C.	24.68 moles
	D.	Not enough information

17b.A dietary supplement for calcium contains 600 mg of CaCO₃ per tablet. How many grams of calcium are in a tablet?

	A.	0.240 g
	B.	0.353 g
	C.	240 g
	D.	353 g

18b.What is the mass of 0.560 moles of chlorine gas?

Font
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Editing
Voice
Sensit
18a.What is the correct formula for the compound that forms from aluminum and ozygen?
12a What is the carrect formula for barium hypochlorite?
ALO
BaCIO:
BaCIO.
AIQ
Ba(CIO):
Ba(CIO:):
none of the above
none of the above
19a.Calculate the formula mass of calcium nitrate.
102.09 amu
13a. A second sample of the compound in question 13 aboe released 1.734 g of azygen when it
was decomposed. How many grams of copper were in this secand sample (Use the information
in question 13 too).
164.10 amu
86.09 amu
A.8.820 g
70.09 amu
( B. 7.086 g
C. Information provided is not enough
none of the above
20a The formula unit for calclum chloride has the compasition Cacla. Which of the following statements
Is true based on this information?
D.0.4243g
14a. Give the correct name for the compound with the following formula: PbCO1.
C A. The empirical formula for calcium chloride is CaClL.
lead carbonate
C B. Calcinm chloride is made up of CaCl molecules.
lead(I) carbonate
leadT) carbonate
CaCli represents the smallest group of ions in a 3-D extended network of calcium and
C.
chloride ions.
C D.A and C
leadaV) carbonate
C E.B nd C
lead carbon riozide
15a. Which of the following is a molecular element?
A. argon
B. chlorine
C. cobalt
D. helium
E. none of the abote
16a Acetone, a nail polish remover, has the molecular formula CHO. The empirical formula for
acetone is
A.CHO
B. CHO
C. CH O
D. None of the above
17a When 12.259 g of a compound containing only copper and oxygen was decomposed it
produced 2.410 g of oxygen How many grams of copper were in the compound? (Do rot
mclude units in vour answer)
Focus

la The name far the campound ClOr is:
A. Chlorine heptoxide
C C. Bn(liquid)
C D.Br(Fas)
B. Dichloride heptaxide
4 C. Dichlorine heptoxide
C D. Chlorine pentoride
TaWhich of the following is an empirical formula?
CA.CHO
B. CH:O
2n Taking the same compound of question 13, how many grams of the compound would be
required to produce 3.032 g of oxygen?
A D.A and B
CA3.836 g
EA,B and C
C B. 12.60 g
8a. Calculate the formula mass of carban tetrachloride.
C C. Information provided is not enough
C D.15.63 g
d 47.46 amu
47.46 grams
3a. What is the correct name for HaSO (an)?
a 83.49 amu
sulfuric acid
153.81 amu
sulfurous acid
153.81grams
e hyposulfurous acid
C bydtosulfuric acid
9a What is the correct formula for the compound that forms berareen calcium and hydromide?
none of the above
CaOH
4a. Which of the following pair has the correct name for the given formula?
a CaHi
CaNO:)- calcium nitrate
apone of the above
KO- dipotassium monoxide
10a. The chemical formula for manganese(I) ozide is
eA Mn Oi
PCl - phosphorus chloride
PBCO1- leaddII) carbonate
B. MnO:
HNO: (aa - bydrogen nitrate
e C. MnO
Sa The chemical fomula for iodic acid is:
D. MnO
A.HI
1laWhat is the correct namie for SCli?
SB HIO
sulfur tetrachloride
C. HIO
morasulfur tetrachloride
DHIO
sulfur chloride
6a. Which of the following chemical formulas and pbysical states represents bromine in its
nanural state7
sorinum(I) chloride
sodium chloride
A.E:(gas)

Accepted Answer

• 1 mole = 6.023 x 1023 ions/atoms/molecules1b Given,No.of atoms of Cμ = 1.48 x 1025We know,6.023 x…