В. 46.3 К

Q: 1-Oxygene in the atmosphere can be consumed by different ways?

A: As we know about the  atmospheric gases are very important for us. these main gases nitrogen (78%) ,…

Q: A student wanted to fill a small balloon with 1.00 L of H₂(g) at SATP. The hydrogen gas is produced…

A: we have to calculate mass of aluminum to produce 1.00L hydrogen

Q: Figure 10-5 -8г 2 OCH 3 (3) кроеви, 4. COCHS кто ви ензон heat А. В. с. 'T Е. F. ОСН3 оснз LOCH 3

A: In the majority of the organic reactions, a mixture of products is obtained. In this mixture, some…

Q: 1B3 uhat is after bal Pb Cs). 3.

A: When the same number of each element is represented on the reactant and product sides, then the…

Q: A) It has a covalent double bond.

A: Iodine is 17th(VIIA)group element• it has 7 valence shell electrons• So required single electron to…

Q: 23. Which equation is incorrect? Assume that T1 and T2 are in Kelvin units. A. V2/V1 = P1/P2, for a…

A: Various gas laws have been given that provides a relationship among pressure, volume and temperature…

Q: 2 equiv. HO, H*

A: Carbonyl compound (aldehyde and ketone) reacts with an alcohol to form hemiacetal in the presence of…

Q: A student wishes to prepare 2.00 L of 0.100 M KIO3, which has a molecular weight of 214g/mol.  The…

A: The molarity of the solution is defined by the mole of solute present in one liter of solution. The…

Q: A chemist adds 40.0 mL of a 0.083 mmol/L sodium thiosulfate (Na, S,0,) solution to a reaction flask.…

A:

Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Welcome to bartleby ! We have to calculate excess weight of HBr

Q: An electric spark is passed through a mixture of 12 grams of hydrogen gas and 32 grams of oxygen gas…

A: Mass of hydrogen gas = 12 g Mass of oxygen gas = 32 g

Q: A gas chromatograph can be used to (more than one answer may be correct) O purify large quantities…

A: Gas chromatography is a technique based on the differential partitioning and migration of components…

Q: A chemist has a 19.50g sample of drinking alcohol (ethyl alcohol). what is the volume ogf the…

A: The relationship between mass and volume is given below.

Q: 19. Use the kinetic-molecular theory to explain each observation given. a. Wax melts near the flame…

A: The kinetic theory of gases describes the behavior of gases in terms of the motion of their…

Q: The noble gas argon was discovered by Sir Walter Ramsay and John William Strutt in England in 1895.…

A: Accurate measurements of gas densities was achieved by the discovery of argon (noble gas) by Sir…

Q: 3. Calculate the mass in grams of a 525 cm³ block of lead. 1.39/c 575ch 3. 4. Calculate the volume…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Calculate the volume in milliliters of a 1.9M silver perchlorate solution that contains 50.0 g of…

A: First find out the number of moles for the given compound. Using the calculated moles and molarity,…

Q: A student conducts an experiment using an unknown hydrate and obtains the following data Crucible…

A: Given - Crucible =  24.31g Crucible+ hydrate = 29.31g Crucible+ anhydrate =  28.26g Mg % = 29.44% S…

Q: Gas chromatography is an analytical technique that is used to separate and analyze samples that can…

A: Gas chromatography is one of the analytical technique that is used for the separation of compounds.…

Q: 100 90 NaNO 80 70 CaCl, Pb(NO)2 60 50 40 KCI NaCi 30 20 KCIO, 10 Ce,(SO) O 10 20 30 40 50 60 70 80…

A: From given graph , in 100 g H2O Solubility of K2Cr2O7 at 80 degree Celsius = 57 g  Solubility of…

Q: The density of a substance is 0.913 g/mL. What mass (in grams) of that substance does 200. cubic…

A: NOTE: Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: A student is given a 6.216 g mixture of iron filings, calcium chloride, and sand. He separates the…

A:

Q: 14. The physician wants the patient to take elemental calcium 500 mg PO BID. What volume of calcium…

A: Amount of Ca needed per dose = 500 mg PO molecular weight of Ca = 40 g/mL

Q: (6) A group of students collected 125 empty aluminum cans to take to therecycling center. If 21 cans…

A: Calculate the mass of aluminum obtained from 125 cans:

Q: 3. Which process can separate a mixture of finely powdered iron and wheat flour? A. distillation 3.…

A: Mixture is a type of matter which is composed of two or more substances. These are called as…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.