Homework Answers
When the wood is burning then some of its mass is left as ash and other will convert into heat and sound.
Out of the available options 4th option "The remaining 1.8 grams was converted into heat". Is the correct answer.
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A sample of wood with a mass of 3.0 grams was burned in an open dish....
A gaseous sample of a compound has a mass of 2.94 grams. This sample occupies a...
A gaseous sample of a compound has a mass of 2.94 grams. This sample occupies a volume of 407 milliliters at a pressure of 3.21 atmospheres and a temperature of 150.0 °C. What is the molecular weight of this gaseous compound? A) 27.7 grams/mole B) 45.1 grams/mole C) 78.1 grams/mole D) 111 grams/mole
A student is given a sample of a manganese(II) chloride hydrate. She weighs the sample in...
A student is given a sample of a manganese(II) chloride hydrate. She weighs the sample in a dry, covered crucible and obtains a mass of 24.747 g for the crucible, cover, and sample. Earlier she had found that the crucible and cover weighed 23.599 g. She then heats the crucible to drive off the water of hydration, keeping the crucible at red heat for about 10 minutes with the cover slightly ajar. She then lets the crucible cool, and finds...
Open Ended Problem 1: A sample of gas has a mass of 0.0388g. Its volume is...
Open Ended Problem 1: A sample of gas has a mass of 0.0388g. Its volume is 224 mL at temperature 55.0°C and a pressure of 886 torr. Find the molar mass of the gas. Problem 2: A 250.0 g sample of copper metal was heated to 85.0'C. When the metal was placed into 110.0 g of water in a calorimeter, the temperature of the water increased from 20.0°C to 45.0°C. What is the specific heat of the metal? The specific...
Introduction: The technique used to separate an organic compound from a mixture of compounds is called...
Introduction: The technique used to separate an organic compound from a mixture of compounds is called Extraction. Extraction process selectively dissolves one or more of the mixture compounds into a suitable solvent. The solution of these dissolved compounds is referred to as the Extract. Here the organic solvent dichloromethane is used to extract caffeine from an aqueous extract of tea leaves because caffeine is more soluble in dichloromethane (140 mg/ml) than it is in water (22 mg/ml). However, there are...
I need help figuring out #5.35, 5.37, 5.45, 5.57, and 5.71 Documents Pearson Updad Assgrmerti Eimiting....
I
need help figuring out #5.35, 5.37, 5.45, 5.57, and 5.71
Documents Pearson Updad Assgrmerti Eimiting. Nos |UNC 217 A gas-filled balloon having a volume of 2.50 L at 1.2 atm and 25°C is allowed to rise to the strato sphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 x 10 atm, respectively. Calculate the final volume of the balloon 5.35 The temperature of 2.5 L of a gas initially at...
PartA: Penny-→ Cu2+(aq) Make sure it is dated prior to 1982. Record mass to nearest 0.001 I. Weig...
PartA: Penny-→ Cu2+(aq) Make sure it is dated prior to 1982. Record mass to nearest 0.001 I. Weigh a copper penny. grams. 2. Place 450 mL of distilled water in a clean 600-mL beaker. Place the beaker on a hotplate and heat until the water boils. Do not wait for the water to boil now, but proceed with the rest of the experiment. You will need this water for rinsing in step C3. CAUTION. You will generate poison°แs nitrogen dioxide...
if you can't answer all ,please don't answer 1) of the reactions below, which one is...
if you can't answer all ,please don't answer
1) of the reactions below, which one is a decomposition reaction? A) Ca(NO3)2 + Na2S -- CdS +2NaNO3 B) NH4Cl- NH3 + HCI C) 2Mg + 02 - 2MgO D) 2N2 + 3H2 → 2NH3 E) 2CH4 + 402 - 2002 + 4H20 miches of - x 1? 2 2) Calculate the percentage by mass of ammonia in cisplatin, PtCl2/NH3 12. A) 12.53 B) 5.68 C) 18.09 D) 11.35 E) 4.67 3)...
Hi there! I need to compare two essay into 1 essay, and make it interesting and...
Hi there! I need to compare two essay into 1 essay, and make it interesting and choose couple topics which im going to talk about in my essay FIRST ESSAY “Teaching New Worlds/New Words” bell hooks Like desire, language disrupts, refuses to be contained within boundaries. It speaks itself against our will, in words and thoughts that intrude, even violate the most private spaces of mind and body. It was in my first year of college that I read Adrienne...
A gaseous sample of a compound has a mass of 2.94 grams. This sample occupies a volume of 407 milliliters at a pressure of 3.21 atmospheres and a temperature of 150.0 °C. What is the molecular weight of this gaseous compound? A) 27.7 grams/mole B) 45.1 grams/mole C) 78.1 grams/mole D) 111 grams/mole
A student is given a sample of a manganese(II) chloride hydrate. She weighs the sample in a dry, covered crucible and obtains a mass of 24.747 g for the crucible, cover, and sample. Earlier she had found that the crucible and cover weighed 23.599 g. She then heats the crucible to drive off the water of hydration, keeping the crucible at red heat for about 10 minutes with the cover slightly ajar. She then lets the crucible cool, and finds...
Open Ended Problem 1: A sample of gas has a mass of 0.0388g. Its volume is 224 mL at temperature 55.0°C and a pressure of 886 torr. Find the molar mass of the gas. Problem 2: A 250.0 g sample of copper metal was heated to 85.0'C. When the metal was placed into 110.0 g of water in a calorimeter, the temperature of the water increased from 20.0°C to 45.0°C. What is the specific heat of the metal? The specific...
I
need help figuring out #5.35, 5.37, 5.45, 5.57, and 5.71
Documents Pearson Updad Assgrmerti Eimiting. Nos |UNC 217 A gas-filled balloon having a volume of 2.50 L at 1.2 atm and 25°C is allowed to rise to the strato sphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 x 10 atm, respectively. Calculate the final volume of the balloon 5.35 The temperature of 2.5 L of a gas initially at...
PartA: Penny-→ Cu2+(aq) Make sure it is dated prior to 1982. Record mass to nearest 0.001 I. Weigh a copper penny. grams. 2. Place 450 mL of distilled water in a clean 600-mL beaker. Place the beaker on a hotplate and heat until the water boils. Do not wait for the water to boil now, but proceed with the rest of the experiment. You will need this water for rinsing in step C3. CAUTION. You will generate poison°แs nitrogen dioxide...
if you can't answer all ,please don't answer
1) of the reactions below, which one is a decomposition reaction? A) Ca(NO3)2 + Na2S -- CdS +2NaNO3 B) NH4Cl- NH3 + HCI C) 2Mg + 02 - 2MgO D) 2N2 + 3H2 → 2NH3 E) 2CH4 + 402 - 2002 + 4H20 miches of - x 1? 2 2) Calculate the percentage by mass of ammonia in cisplatin, PtCl2/NH3 12. A) 12.53 B) 5.68 C) 18.09 D) 11.35 E) 4.67 3)...
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