 Lv 14 points

# Tyler

Questions23
• ### Maus 1 and 2 Quote?

Can anyone help me find a quote about God in Maus 1 or 2?

• ### Same Kind of Different as Me quote?

can anyone help me find a quote in The Same Kind of Different as Me book about Ron and Deborah depending on one another?

THANK YOU!

• ### Denver Moore Family Tree?

Could someone give me a list of all of Denver’s family members? For the same kind of different as me book.

• ### Chem Help!?

The concentration of either the H+ ion or the OH − ion is given for four aqueous solutions at 298 K. For each solution, calculate [H+] or [OH − ]. State whether the solution is acidic, basic, or neutral.

1. [OH − ] = 6.0 10-7 M

2. [OH − ] = 7.0 10-3 M

3. [H+] = 8.0 10-5 M

• ### Chem Help!?

1. What is the molarity of a nitric acid solution if 43.13 mL 0.2000 M KOH solution is needed to neutralize 20.00 mL of the acid solution?

2. 228 mL of hydrochloric acid is exactly neutralized with 258 mL 0.840 M calcium hydroxide solution. What is the concentration of the acid solution?

• ### Chem Help!?

Calculate the pH and pOH of aqueous solutions with the following concentrations at 298 K.

(a) [OH-] = 9.0 10-6 M

pOH =

pH =

(b) [OH-] = 4.8 10-4 M

pOH =

pH =

(c) [H+] = 2.6 10-9 M

pH =

pOH =

(d) [H+] = 4.3 10-2 M

pH =

pOH =

• ### Bible verse help!?

Is there a verse in the Bible that says or explains Gods presence in animals or people?

3 AnswersReligion & Spirituality1 year ago
• ### Chem Help!?

1. What is the molarity of an aqueous solution containing 42.3 g of glucose (C6H12O6) in 1.4 L of solution?

2. How many grams of CaCl2 should be dissolved in 487.0 mL of water to make a 0.13 M solution of CaCl2?

3. What mass of NaOH is in 310 mL of a 3.5 M NaOH solution?

Chemistry1 year ago
• ### Chem Help!?

A sample of nitrogen gas is stored in a 592.5 mL flask at 108 kPa and 10.0°C. The gas is transferred to a 750.0 mL flask at 22.7°C. What is the pressure of nitrogen in the second flask?

• ### Chem Help!?

Ammonium nitrate is a common ingredient in chemical fertilizers.

Use the reaction shown to calculate the mass of solid ammonium nitrate that must be used to obtain 0.209 L of dinitrogen oxide gas at STP.

NH4NO3(s) N2O(g) + 2 H2O(g)

• ### Chem Help!?

When iron rusts, it undergoes a reaction with oxygen to form iron(III) oxide.

4 Fe(s) + 3 O2(g) 2 Fe2O3(s)

Calculate the volume of oxygen gas at STP that is required to completely react with 55.2 g of iron.

• ### Chem Help!?

Use Boyle's, Charles's, or Gay-Lussac's law to calculate the missing value in each of the following.

(a) V1 = 2.0 L, P1 = 0.89 atm, V2 = 1.0 L, P2 = ?

(b) V1 = 350 mL, T1 = ?, V2 = 400. mL, T2 = 298 K

(c) V1 = 0.55 L, P1 = 740 mm Hg, V2 = 0.82 L, P2 = ?

• ### Chem Help!?

1. What is the pressure of a fixed volume of hydrogen gas at 38.8°C if it has a pressure of 1.95 atm at 15.0°C?

2.A sample of nitrogen gas is stored in a 592.5 mL flask at 108 kPa and 10.0°C. The gas is transferred to a 750.0 mL flask at 22.7°C. What is the pressure of nitrogen in the second flask?

3.Determine the pressure inside a television picture tube with a volume of 3.45 L that contains 3.00 10-5 g of nitrogen gas at 19.0°C.

4. A 1.79-L flask is filled with propane gas (C3H8), at 1.00 atm and -21.9°C. What is the mass of the propane in the flask?

• ### Chem help!?

A weather balloon is filled with helium that occupies a volume of 3.50 104 L at 0.995 atm and 32.0°C. After it is released, it rises to a location where the pressure is 0.720 atm and the temperature is -13.1°C. What is the volume of the balloon at that new location?

• ### Chem Help!?

What mass of methane must be burned in order to liberate 12531 kJ of heat?

• ### Chem Help!?

Use standard enthalpies of formation from the table to calculate ΔH°rxn for the following reaction.

• ### Chem Help!?

57.3 g of a substance at 95.3°C is added to 79.0 g of water at 16.6°C. The final temperature of the water and substance is 42.5°C. The specific heat of water is 4.184 J/g·°C. What is the specific heat of the substance?

• ### Chem help!?

The temperature of a sample of water increases from 20.1°C to 46.5°C as it absorbs 5603 J of heat. What is the mass of the sample?