Question

In: Chemistry

Perform each of the following conversions. Part A 1.3 in to mm Express your answer using...

Perform each of the following conversions.

Part A

1.3 in to mm

Express your answer using two significant figures.

Part B

115. ft to cm

Express your answer using three significant figures.

Part C

1740. kg to lb

Express your answer using four significant figures.

Part D

835 yd to km

Express your answer using three significant figures.

Expert Solution

Answer:

Conversion inches to mm –

1 inch = 25.4 mm

So, 1.3 inches = 25.4 * 1.3

= 33.02 mm

= 33 mm (in two significant figures)

Conversion ft to cm –

1 ft = 30.48 cm

So, 115 ft = 115 * 30.48

= 3505.20 cm

= 3.50 x 10³ cm (in three significant figures)

Conversion kg to lb –

1 kg = 2.205 lb

So, 1740 kg = 1740 * 2.205

= 3836.70 lb

= 3836 lb (in four significant figures)

Conversion yd to km –

1yd = 1/1094 km

So, 835 yd = 835 / 1094

= 0.7635 km

= 0.763 km (in three significant figures)

queen_honey_blossom answered 7 months ago

Calculate the [H3O+] of each aqueous solution with the following [OH−] . Express your answer using...

Calculate the [H3O+] of each aqueous solution with the following [OH−] . Express your answer using two significant figures. 1.Vinegar, 1.2 x 10-11M, Express your answer using two significant figures. 2. Urine, 2.3x10-9 M, Express your answer using two significant figures. 3. Ammonia, 5.8×10−3 M, Express your answer using two significant figures. 4. NaOH, 4.0×10−2 M, Express your answer using two significant figures.

Calculate the pH of each solution. Part A [H3O+] = 7.7×10−8 M Express your answer using...

Calculate the pH of each solution. Part A [H3O+] = 7.7×10−8 M Express your answer using two decimal places. pH = Part B [H3O+] = 7.0×10−7 M Express your answer using two decimal places. pH = Part C [H3O+] = 4.2×10−6 M Express your answer using two decimal places. pH = Part D [H3O+] = 6.4×10−4 M Express your answer using two decimal places. pH = Part E [OH−] = 9.9×10−7 M Express your answer using two decimal places. Part...

Predict the products and write a balanced equation. For each part express your answer as a...

Predict the products and write a balanced equation. For each part express your answer as a chemical equation and identify all of the phases in your answer. A.) Decomposition: LiCl(s)-->__+__ B.) Combination: Ba(s) + Cl2(g)-->___ C.) Combination: NO(g) + O2(g)-->___ D.) Double Replacement: NiCl2(aq) + NaOH(aq)-->___+___ Please show how exactly how to balance each equation. I am having a hard time coming up with the correct answer, so if the steps could be shown I would appreciate it.

Part A 24195Am→23793Np+_ Express your answer in isotopic notation. Part B _+0−1e→12655Cs Express your answer in...

Part A 24195Am→23793Np+_____ Express your answer in isotopic notation. Part B _____+0−1e→12655Cs Express your answer in isotopic notation. Part C 23793Np→_____+42He Express your answer in isotopic notation. Part D 21885At→_____+42He Express your answer in isotopic notation.

Part A Determine the [H3O+] of a 0.250M solution of formic acid. Express your answer using...

Part A Determine the [H3O+] of a 0.250M solution of formic acid. Express your answer using two significant figures. [H3O+] = ??? Part B Determine pH of this solution of formic acid. Express your answer to two decimal places. pH=???

Assign an oxidation state to each element or ion: Part A V Express your answer as...

Assign an oxidation state to each element or ion: Part A V Express your answer as a signed integer. Part B Mg2+ Express your answer as a signed integer. Part C Cr3+ Assign an oxidation state to each atom in each polyatomic ion. Part B Express your answer as a signed integer. oxidation state of O: Part C OH− Express your answer as a signed integer. oxidation state of O: Part D Express your answer as a signed integer. oxidation...

Calculate the pH and pOH of each of the following solutions. - Express your answer to...

Calculate the pH and pOH of each of the following solutions. - Express your answer to two decimal places. Enter your answers numerically separated by a comma. -A) [H3O+]= 1.6×10−8 M -B) [H3O+]= 1.0×10−7 M -C) [H3O+]= 2.5×10−6 M

Answer the following and express your answer using two significant figures. Calculate the final concentration of...

Answer the following and express your answer using two significant figures. Calculate the final concentration of each of the following diluted solutions. A) 3.5 L of a 4.0 M HNO3 solution is added to water so that the final volume is 8.0 L . B) Water is added to 0.15 L of a 6.0 M KOH solution to make 2.0 L of a diluted KOH solution. C) A 35.0 mL sample of 8.0 % (m/v) NaOH is diluted with water...

Answer the following and express your answer using two significant figures. Calculate the grams of solute...

Answer the following and express your answer using two significant figures. Calculate the grams of solute needed to prepare each of the following solutions. A) 1.6 L of a 4.5 M NaOH solution B) 7.0 L of a 0.20 M CaCl2 solution C) 180 mL of a 3.50 M NaNO3 solution

1)Determine the pH of each solution. Part A 0.20 M KCHO2 Express your answer to two...

1)Determine the pH of each solution. Part A 0.20 M KCHO2 Express your answer to two decimal places. Part B 0.21 M CH3NH3I Express your answer to two decimal places. Part C 0.22 M KI Express your answer to two decimal places. 2) Part A Rank the following compounds in order of decreasing acid strength using periodic trends. Rank the acids from strongest to weakest. To rank items as equivalent, overlap them. LiH, H2O, HCl, HBr