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Use the References to access important values if needed for this question. An artifact classified as...
An artifact classified as bone, horse, found in a site at Offham, England, is found to...
An artifact classified as bone, horse, found in a site at Offham, England, is found to have a 14C radioactivity of 0.192 counts per second per gram of carbon. If living carbon-containing objects have an activity of 0.255 counts per second per gram of carbon, estimate the age of the artifact? The half-life of 14C is 5730 years. у
explain 7 & 8 please Question 7 1 pts The AC activity of an artifact from...
explain 7 & 8 please
Question 7 1 pts The AC activity of an artifact from a burial site was 8.7/min.g C. The half-life of C is 5730 years, and the current activity is 16.1/min.g C (that is, 16.1 disintegrations per minute per gram of carbon). How old in years) is the artifact? Enter number to 1 decimal place. Question 8 1 pts Analysis of an ant found in a piece of amber provided 10 disintegrations of 14C/min.g C, whereas...
no need to show work, just correct answers. please comment if need more info A voltaic...
no need to show work, just correct answers. please comment if
need more info
A voltaic cell is constructed from a standard Co2+ Co half cell (Ered - -0.280V) and a standard Ca? Cd half cell (Eºred -0.403V). The anode reaction is: The cathode reaction is: The spontaneous cell reaction is: The cell voltage is A voltaic cell is constructed from a standard Sna+Sn half cell (Ered - -0.140V) and a standard I, half cell (Ered - 0.535V). (Use the...
References Use the References to access important values if needed for this question. A 4.88 gram...
References Use the References to access important values if needed for this question. A 4.88 gram sample of carbon dioxide gas has a volume of 852 milliliters at a pressure of 2.78 atm. The temperature of the CO2 gas sample is °C. Submit Answer
Use the References to access important values if needed for this question What would be the wavel...
Use the References to access important values if needed for this question What would be the wavelength of radiation emitted from a hydrogen atom when an electron moves from the n-2 to n-1 energy level? In what region of the spectrum does this radiation lie? Wavelength Region nm Submit Answer Use the References to access importast values if needed fer this question Calculate the energy for the transition of an electron from the n-7 level to the n-4 level of...
References Use the References to access important values if needed for this question. 1.09 mol sample...
References Use the References to access important values if needed for this question. 1.09 mol sample of carbon dioxide gas at a temperature of 7.00 °C is found to occupy a volume of 21.9 liters. The pressure of this gas sample is mm Hg. Submit Answer
(Reference Use the References to access important values if needed for this question A sample of...
(Reference Use the References to access important values if needed for this question A sample of oxygen gas collected at a pressure of 1.25 atm and a temperature of 301 K is found to occupy a volume of 851 milliliters. How many moles of O, gas are in the sample? mol Submit Answer Submit Answer Try Another Version Frey Another Version 2 tom ate 2 item attempts remaining
a Roforoncos Use the References to access important values if needed for this question. A 1.13...
a Roforoncos Use the References to access important values if needed for this question. A 1.13 gram sample of an unknown gas is found to occupy a volume of 1.35 L at a pressure of 504 mm Hg and a temperature of 46°C. The molecular weight of the unknown gas is g/mol. Assume ideal behavior Submit Answer Q s. Roforoncos Use the References to access important values if needed for this question. g/L at a pressure of 0.960 atm and...
References Use the References to access important values if needed for this question. It is not...
References Use the References to access important values if needed for this question. It is not necessary to include states such as (aq) or (s). If a box is not needed leave it blank. If no reaction occurs leave all boxes blank and click on "submit". Write the balanced NET IONIC equation for the reaction that occurs when nitric acid and sodium hydroxide are combined. This reaction is classified as: The extent of this reaction is: Submit Answer
References Use the References to access important values if needed for this question. One of the...
References Use the References to access important values if needed for this question. One of the hydrates of Na2SO4 is sodium sulfate heptahydrate. A 70.4 gram sample of Na2SO4.7H20 was heated thoroughly in a porcelain crucible, until its weight remained constant. After heating, how many grams of the anhydrous compound remained? Submit Answer progress
An artifact classified as bone, horse, found in a site at Offham, England, is found to have a 14C radioactivity of 0.192 counts per second per gram of carbon. If living carbon-containing objects have an activity of 0.255 counts per second per gram of carbon, estimate the age of the artifact? The half-life of 14C is 5730 years. у
explain 7 & 8 please
Question 7 1 pts The AC activity of an artifact from a burial site was 8.7/min.g C. The half-life of C is 5730 years, and the current activity is 16.1/min.g C (that is, 16.1 disintegrations per minute per gram of carbon). How old in years) is the artifact? Enter number to 1 decimal place. Question 8 1 pts Analysis of an ant found in a piece of amber provided 10 disintegrations of 14C/min.g C, whereas...
no need to show work, just correct answers. please comment if
need more info
A voltaic cell is constructed from a standard Co2+ Co half cell (Ered - -0.280V) and a standard Ca? Cd half cell (Eºred -0.403V). The anode reaction is: The cathode reaction is: The spontaneous cell reaction is: The cell voltage is A voltaic cell is constructed from a standard Sna+Sn half cell (Ered - -0.140V) and a standard I, half cell (Ered - 0.535V). (Use the...
References Use the References to access important values if needed for this question. A 4.88 gram sample of carbon dioxide gas has a volume of 852 milliliters at a pressure of 2.78 atm. The temperature of the CO2 gas sample is °C. Submit Answer
Use the References to access important values if needed for this question What would be the wavelength of radiation emitted from a hydrogen atom when an electron moves from the n-2 to n-1 energy level? In what region of the spectrum does this radiation lie? Wavelength Region nm Submit Answer Use the References to access importast values if needed fer this question Calculate the energy for the transition of an electron from the n-7 level to the n-4 level of...
References Use the References to access important values if needed for this question. 1.09 mol sample of carbon dioxide gas at a temperature of 7.00 °C is found to occupy a volume of 21.9 liters. The pressure of this gas sample is mm Hg. Submit Answer
(Reference Use the References to access important values if needed for this question A sample of oxygen gas collected at a pressure of 1.25 atm and a temperature of 301 K is found to occupy a volume of 851 milliliters. How many moles of O, gas are in the sample? mol Submit Answer Submit Answer Try Another Version Frey Another Version 2 tom ate 2 item attempts remaining
a Roforoncos Use the References to access important values if needed for this question. A 1.13 gram sample of an unknown gas is found to occupy a volume of 1.35 L at a pressure of 504 mm Hg and a temperature of 46°C. The molecular weight of the unknown gas is g/mol. Assume ideal behavior Submit Answer Q s. Roforoncos Use the References to access important values if needed for this question. g/L at a pressure of 0.960 atm and...
References Use the References to access important values if needed for this question. It is not necessary to include states such as (aq) or (s). If a box is not needed leave it blank. If no reaction occurs leave all boxes blank and click on "submit". Write the balanced NET IONIC equation for the reaction that occurs when nitric acid and sodium hydroxide are combined. This reaction is classified as: The extent of this reaction is: Submit Answer
References Use the References to access important values if needed for this question. One of the hydrates of Na2SO4 is sodium sulfate heptahydrate. A 70.4 gram sample of Na2SO4.7H20 was heated thoroughly in a porcelain crucible, until its weight remained constant. After heating, how many grams of the anhydrous compound remained? Submit Answer progress
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